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Patjas A, Martelius A, Ollgren J, Kantele A. International travel increases risk of urinary tract infection caused by extended-spectrum beta-lactamase-producing Enterobacterales-three-arm case-control study. J Travel Med 2024; 31:taad155. [PMID: 38123504 DOI: 10.1093/jtm/taad155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Extended-spectrum beta-lactamase-producing Enterobacterales (ESBL-PE) have worldwide become increasingly prevalent as pathogens causing urinary tract infections (UTIs), posing challenges in their treatment. Of particular concern are travellers to low- and middle-income countries (LMICs), a substantial proportion of whom become colonized by ESBL-PE, with UTIs as the most common clinical manifestation. Seeking tools for preventing ESBL-PE UTI, we explored factors associated with (i) any UTI (versus control), (ii) ESBL-PE UTI (versus control) and (iii) ESBL-PE versus non-ESBL-PE UTI. METHODS During 2015-20, we recruited patients with recent ESBL-PE or non-ESBL-PE UTIs, and controls with no UTI to fill in questionnaires covering potential (ESBL-PE-)UTI risk factors. RESULTS Of our 430 participants, 130 had ESBL-PE UTI and 187 non-ESBL-PE UTI; 113 were controls. Our three comparisons showed several risk factors as exemplified for any UTI versus controls by female sex, lower education, age, diabetes, antibiotic use, diarrhoea; for ESBL-PE UTI versus controls by travel to LMICs, antibiotic use, swimming; and ESBL-PE versus non-ESBL-PE UTI by male sex, higher education, LMIC travel (participant/household member), pets and antibiotic use. Weekly fish meals appeared protective against both UTI and ESBL-PE UTI. CONCLUSIONS Of the numerous factors predisposing to UTI and/or ESBL-PE UTI, our study highlights antibiotic use and LMIC travel. Household members' LMIC travel appears to pose a risk of ESBL-PE UTI, pointing to household transmission of travel-acquired uropathogens. As predisposing factors to multidrug-resistant UTI, international travel and antibiotic use constitute practical targets for prevention efforts.
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Affiliation(s)
- Anu Patjas
- Meilahti Vaccine Research Centre, MeVac, Department of Infectious Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Human Microbiome Research Unit, University of Helsinki, Helsinki, Finland
- Centre of Excellence in Antimicrobial Resistance Research, FIMAR, Helsinki, Finland
| | - Antti Martelius
- Meilahti Vaccine Research Centre, MeVac, Department of Infectious Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Human Microbiome Research Unit, University of Helsinki, Helsinki, Finland
| | - Jukka Ollgren
- Department of Health Security, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Anu Kantele
- Meilahti Vaccine Research Centre, MeVac, Department of Infectious Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Human Microbiome Research Unit, University of Helsinki, Helsinki, Finland
- Centre of Excellence in Antimicrobial Resistance Research, FIMAR, Helsinki, Finland
- Travel Clinic, Aava Medical Centre, Helsinki, Finland
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Horak P, Auer H, Wiedermann U, Walochnik J. Malaria in Austria : A retrospective analysis of malaria cases diagnosed at a reference center in 2010-2020. Wien Klin Wochenschr 2023; 135:617-624. [PMID: 37069405 PMCID: PMC10108813 DOI: 10.1007/s00508-023-02179-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 02/25/2023] [Indexed: 04/19/2023]
Abstract
BACKGROUND Although malaria is not endemic to Austria, each year infections are imported by travellers, migrants and refugees. This study aims to provide an overview of malaria cases diagnosed at an Austrian institute for tropical medicine between 2010 and 2020. METHODS A retrospective, descriptive study was conducted based on the data of malaria cases confirmed at the Institute of Specific Prophylaxis and Tropical Medicine of the Medical University of Vienna. Laboratory diagnostics included microscopy, polymerase chain reaction (PCR) and real-time quantitative PCR. RESULTS Overall, 122 cases were identified. Annual case numbers were consistently higher from 2016 to 2020 than during the first half of the decade. Most malaria cases were diagnosed during summer and early autumn. This seasonal trend was not observed during the year 2020. With 55.1% (65/118) Plasmodium falciparum was the most common species, followed by Plasmodium vivax (19.5%, 23/118). The majority of patients were male (71.1%, 86/121) and the median age was 34.5 years (interquartile range, IQR 22.5-47.0 years). With a median age of 20.0 years (IQR 14.0-32.0 years), patients with P. vivax infections were younger than those infected with other Plasmodium species. Moreover, they were mostly male (82.6%, 19/23). CONCLUSION From 2010 to 2020, the number of malaria cases diagnosed at the center increased. Growing international mobility and changing travel behavior could at least partly be responsible for this trend and there are indications that particularly P. vivax infections were imported by migrants and refugees.
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Affiliation(s)
- Paul Horak
- Institute of Specific Prophylaxis and Tropical Medicine, Medical University of Vienna, Kinderspitalgasse 15, 1090, Vienna, Austria
| | - Herbert Auer
- Institute of Specific Prophylaxis and Tropical Medicine, Medical University of Vienna, Kinderspitalgasse 15, 1090, Vienna, Austria
| | - Ursula Wiedermann
- Institute of Specific Prophylaxis and Tropical Medicine, Medical University of Vienna, Kinderspitalgasse 15, 1090, Vienna, Austria
| | - Julia Walochnik
- Institute of Specific Prophylaxis and Tropical Medicine, Medical University of Vienna, Kinderspitalgasse 15, 1090, Vienna, Austria.
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Ngere P, Onsongo J, Langat D, Nzioka E, Mudachi F, Kadivane S, Chege B, Kirui E, Were I, Mutiso S, Kibisu A, Ihahi J, Mutethya G, Mochache T, Lokamar P, Boru W, Makayotto L, Okunga E, Ganda N, Haji A, Gathenji C, Kariuki W, Osoro E, Kasera K, Kuria F, Aman R, Nabyonga J, Amoth P. Characterization of COVID-19 cases in the early phase (March to July 2020) of the pandemic in Kenya. J Glob Health 2022; 12:15001. [PMID: 36583253 PMCID: PMC9801068 DOI: 10.7189/jogh.12.15001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Background Kenya detected the first case of COVID-19 on March 13, 2020, and as of July 30, 2020, 17 975 cases with 285 deaths (case fatality rate (CFR) = 1.6%) had been reported. This study described the cases during the early phase of the pandemic to provide information for monitoring and response planning in the local context. Methods We reviewed COVID-19 case records from isolation centres while considering national representation and the WHO sampling guideline for clinical characterization of the COVID-19 pandemic within a country. Socio-demographic, clinical, and exposure data were summarized using median and mean for continuous variables and proportions for categorical variables. We assigned exposure variables to socio-demographics, exposure, and contact data, while the clinical spectrum was assigned outcome variables and their associations were assessed. Results A total of 2796 case records were reviewed including 2049 (73.3%) male, 852 (30.5%) aged 30-39 years, 2730 (97.6%) Kenyans, 636 (22.7%) transporters, and 743 (26.6%) residents of Nairobi City County. Up to 609 (21.8%) cases had underlying medical conditions, including hypertension (n = 285 (46.8%)), diabetes (n = 211 (34.6%)), and multiple conditions (n = 129 (21.2%)). Out of 1893 (67.7%) cases with likely sources of exposure, 601 (31.8%) were due to international travel. There were 2340 contacts listed for 577 (20.6%) cases, with 632 contacts (27.0%) being traced. The odds of developing COVID-19 symptoms were higher among case who were aged above 60 years (odds ratio (OR) = 1.99, P = 0.007) or had underlying conditions (OR = 2.73, P < 0.001) and lower among transport sector employees (OR = 0.31, P < 0.001). The odds of developing severe COVID-19 disease were higher among cases who had underlying medical conditions (OR = 1.56, P < 0.001) and lower among cases exposed through community gatherings (OR = 0.27, P < 0.001). The odds of survival of cases from COVID-19 disease were higher among transport sector employees (OR = 3.35, P = 0.004); but lower among cases who were aged ≥60 years (OR = 0.58, P = 0.034) and those with underlying conditions (OR = 0.58, P = 0.025). Conclusion The early phase of the COVID-19 pandemic demonstrated a need to target the elderly and comorbid cases with prevention and control strategies while closely monitoring asymptomatic cases.
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Affiliation(s)
- Philip Ngere
- Department of Disease Surveillance and Epidemic Response, Ministry of Health, Kenya,Washington State University, Global Health, Kenya
| | | | - Daniel Langat
- Department of Disease Surveillance and Epidemic Response, Ministry of Health, Kenya
| | - Elizabeth Nzioka
- Public Health Emergency Operation Centre, Ministry of Health, Kenya
| | - Faith Mudachi
- Department of Promotive and Preventive Health, Ministry of Health, Kenya
| | - Samuel Kadivane
- Department of Disease Surveillance and Epidemic Response, Ministry of Health, Kenya
| | - Bernard Chege
- Public Health Emergency Operation Centre, Ministry of Health, Kenya
| | - Elvis Kirui
- National Public Health Laboratory Services, Ministry of Health, Kenya
| | - Ian Were
- Office of the Director General, Ministry of Health, Kenya
| | - Stephen Mutiso
- Department of Promotive and Preventive Health, Ministry of Health, Kenya
| | - Amos Kibisu
- Public Health Emergency Operation Centre, Ministry of Health, Kenya
| | - Josephine Ihahi
- Public Health Emergency Operation Centre, Ministry of Health, Kenya
| | - Gladys Mutethya
- Public Health Emergency Operation Centre, Ministry of Health, Kenya
| | | | - Peter Lokamar
- National Public Health Laboratory Services, Ministry of Health, Kenya
| | - Waqo Boru
- Field Epidemiology and Laboratory Training Program, Ministry of Health, Kenya
| | - Lyndah Makayotto
- Department of Disease Surveillance and Epidemic Response, Ministry of Health, Kenya
| | - Emmanuel Okunga
- Department of Disease Surveillance and Epidemic Response, Ministry of Health, Kenya
| | | | - Adam Haji
- World Health Organization, Nairobi Kenya
| | | | | | - Eric Osoro
- Washington State University, Global Health, Kenya
| | - Kadondi Kasera
- Public Health Emergency Operation Centre, Ministry of Health, Kenya
| | - Francis Kuria
- Directorate of Public Health, Ministry of Health, Kenya
| | - Rashid Aman
- Cabinet Administrative Secretary, Ministry of Health, Kenya
| | | | - Patrick Amoth
- Office of the Director General, Ministry of Health, Kenya
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Trojánek M, Grebenyuk V, Richterová L, Zicklerová I, Nohýnková E, Manďáková Z, Kantor J, Roháčová H, Stejskal F. Epidemiology and clinical features of imported malaria: a 14-year retrospective single-centre descriptive study in Prague, Czech Republic. Malar J 2022; 21:257. [PMID: 36068598 PMCID: PMC9447980 DOI: 10.1186/s12936-022-04282-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 08/30/2022] [Indexed: 11/10/2022] Open
Abstract
Background Malaria represents one of the most important imported tropical infectious diseases in European travellers. The objective of the study was to identify changes in the epidemiological features of imported malaria and to analyse the clinical findings and outcomes of imported malaria. Methods This single-centre descriptive study retrospectively analysed the medical records of all imported malaria cases in travellers treated at the Department of Infectious Diseases of University Hospital Bulovka in Prague from 2006 to 2019. Results The study included 203 patients with a median age of 37 years (IQR 30–48) and a male to female ratio of 3.72:1. Plasmodium falciparum was the predominant species (149/203), and its proportion significantly increased from 35/60 cases (58.3%) in 2006–2011 to 69/80 (86.3%) in 2016–2019 (p < 0.001). In contrast, the incidence of Plasmodium vivax malaria decreased from 19/60 cases (31.7%) in 2006–2011 to 5/80 (6.3%) in 2016–2019 (p < 0.001). Malaria was imported from sub-Saharan Africa in 161/203 cases (79.3%). The proportion of travellers from Southeast and South Asia decreased from 16/60 (26.7%) and 6/60 (10.0%) in 2006–2011 to 2/80 (2.5%) and no cases (0.0%) in 2016–2019, respectively (p < 0.001 and p = 0.006). Tourism was the most common reason for travel (82/203), however, the proportion of non-tourists significantly increased over time from 29/60 (48.3%) in 2006–2011 to 55/80 (68.8%) in 2016–2019, p = 0.015. Severe malaria developed in 32/203 (15.8%) patients who were significantly older (p = 0.013) and whose treatment was delayed (p < 0.001). Two lethal outcomes were observed during the study period. Conclusions This study demonstrated a significant increase in P. falciparum malaria, which frequently resulted in severe disease, especially in older patients and those with delayed treatment initiation. The rising proportion of imported malaria in non-tourists, including business travellers and those visiting friends and relatives, is another characteristic finding analogous to the trends observed in Western European and North American centres. The described changes in the aetiology and epidemiology of imported malaria may serve to optimize pre-travel consultation practices and improve post-travel diagnostics and medical care. Supplementary Information The online version contains supplementary material available at 10.1186/s12936-022-04282-8.
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Affiliation(s)
- Milan Trojánek
- Department of Infectious Diseases, 2nd Faculty of Medicine, Charles University, Budínova 2, 180 81, Prague, Czech Republic.,Department of Infectious Diseases, University Hospital Bulovka, Budínova 2, 180 81, Prague, Czech Republic.,Department of Infectious Diseases, Institute for Postgraduate Medical Education, Prague, Czech Republic
| | - Vyacheslav Grebenyuk
- Department of Infectious Diseases, 2nd Faculty of Medicine, Charles University, Budínova 2, 180 81, Prague, Czech Republic. .,Department of Infectious Diseases, University Hospital Bulovka, Budínova 2, 180 81, Prague, Czech Republic.
| | - Lenka Richterová
- Department of Clinical Microbiology, University Hospital Bulovka, Budínova 2, 180 81, Prague, Czech Republic.,National Reference Laboratory for the Diagnosis of Tropical Parasitic Infections, Budínova 2, 180 81, Prague, Czech Republic.,Department of Infectious and Tropical Diseases, 1st Faculty of Medicine, Charles University, Budínova 2, 180 81, Prague, Czech Republic.,Department of Microbiology of the 3rd Faculty of Medicine, Charles University, University Hospital Královské Vinohrady, National Institute of Public Health, Šrobárova 50, 100 34, Prague, Czech Republic
| | - Ivana Zicklerová
- Department of Clinical Microbiology, University Hospital Bulovka, Budínova 2, 180 81, Prague, Czech Republic.,National Reference Laboratory for the Diagnosis of Tropical Parasitic Infections, Budínova 2, 180 81, Prague, Czech Republic
| | - Eva Nohýnková
- National Reference Laboratory for the Diagnosis of Tropical Parasitic Infections, Budínova 2, 180 81, Prague, Czech Republic.,Institute of Immunology and Microbiology, 1st Faculty of Medicine, Charles University, Studničkova 7, 128 00, Prague, Czech Republic
| | - Zdenka Manďáková
- Department of Epidemiology of Infectious Diseases, National Institute of Public Health, Šrobárova, Prague, Czech Republic
| | - Jakub Kantor
- Department of Infectious Diseases, 2nd Faculty of Medicine, Charles University, Budínova 2, 180 81, Prague, Czech Republic
| | - Hana Roháčová
- Department of Infectious Diseases, University Hospital Bulovka, Budínova 2, 180 81, Prague, Czech Republic
| | - František Stejskal
- Department of Infectious Diseases, 2nd Faculty of Medicine, Charles University, Budínova 2, 180 81, Prague, Czech Republic.,Department of Infectious Diseases, University Hospital Bulovka, Budínova 2, 180 81, Prague, Czech Republic.,Department of Infectious Diseases, Regional Hospital Liberec, Husova 10, 460 63, Liberec, Czech Republic
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Solomon M, Fuchs I, Glazer Y, Schwartz E. Gender and Cutaneous Leishmaniasis in Israel. Trop Med Infect Dis 2022; 7:tropicalmed7080179. [PMID: 36006271 PMCID: PMC9416259 DOI: 10.3390/tropicalmed7080179] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/01/2022] [Accepted: 08/06/2022] [Indexed: 11/17/2022] Open
Abstract
Leishmaniasis is estimated to be more common in males than in females. Our purpose was to evaluate differences in preponderance in relation to sex and gender across cutaneous and mucocutaneous leishmaniasis in Israel. An observational study was performed, including cases of endemic CL (cutaneous leishmaniasis) in Israel, and imported MCL (mucocutaneous leishmaniasis). CL is a notifiable disease and is supposed to be reported to the Ministry of Health (MOH). The MOH database shows that males as more likely to be infected by leishmania, with an incidence of 5/100,000 in males vs. 3.5/100,000 in females. However, while conducting a demographic house-to-house survey in several locations in Israel where CL is highly endemic, among 608 people who were screened only 49% were males in Leishmania major (L. major) endemic regions and 41% were males in Leishmania tropica (L. tropica) endemic regions, while among 165 cases of imported New-World cutaneous leishmaniasis in Israeli travelers freturning from abroad, 142 (86%) were males. It may be postulated that there is no real gender difference in leishmanial infection, but, perhaps, infections are more commonly seen in men because of referral/reported bias, due to more risk-taking behaviors by men or, perhaps, men are less likely to strictly adhere to recommended preventive measures and thus increase their risk of contracting the disease.
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Affiliation(s)
- Michal Solomon
- Department of Dermatology, Chaim Sheba Medical Center, Tel Hashomer, The Sackler School of Medicine, Tel Aviv University, Tel Aviv 8436322, Israel
- Correspondence: ; Tel.: +972-52-8629799
| | - Inbal Fuchs
- Clalit Health Services-Southern District Department of Family Medicine, Faculty of Health Sciences, Ben Gurion University, Beer Sheva 84105, Israel
| | - Yael Glazer
- Division of Epidemiology, Ministry of Health, Jerusalem 9462401, Israel
| | - Eli Schwartz
- Center for Geographic Medicine and Tropical Diseases, Chaim Sheba Medical Center, Tel Hashomer, The Sackler School of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
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Zhang B, Ye X, Chen Q, Jiang Q, Zhang X, Tong L. The Prevalence of Non-infectious Diseases Among Overseas Chinese Workers in 2018. FRONTIERS IN EPIDEMIOLOGY 2022; 2:817850. [PMID: 38455282 PMCID: PMC10910927 DOI: 10.3389/fepid.2022.817850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 05/24/2022] [Indexed: 03/09/2024]
Abstract
Background With the "Belt and Road" initiative, more Chinese citizens have gone abroad to engage in overseas labor activities. Few studies have investigated the prevalence of non-infectious diseases among Chinese overseas workers. This study seeks to fill the gap and illustrate the relevant diseases in a population of Chinese overseas workers. Methods The health records of 13,529 Chinese migrant workers (12,917 males, mean age 41.3 ± 8.7 years, and 612 females, mean age 33.1 ± 10.2 years) who visited the International Travel Health Care Center in Anhui province were obtained. Chi-square test and binary logistic regression models were used to analyze the associations between the prevalence of non-infectious diseases and sex, as well as the association between non-infectious diseases and length of stay abroad. Results In this study, 34.6% of overseas workers were found to have one or more types of non-infectious diseases. Hypertension had the highest prevalence (9.58%). Hypertension, fatty liver, renal disease and abnormal liver function tests were more prevalent among male workers than among female workers, while anemia and abnormal urinalysis were more prevalent among female workers. The prevalence of hypertension, renal diseases, liver diseases and gallbladder diseases increased with the length of stay abroad. Conclusion Non-infectious diseases including cardiovascular diseases, diabetes, and chronic respiratory diseases were highly prevalent among Chinese overseas workers. Hence the monitoring of non-infectious diseases needs to be enhanced to reduce China's overall disease burden in the future.
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Affiliation(s)
- Bolin Zhang
- Hefei Preschool Teachers College, Hefei, China
| | - Xiangguang Ye
- Anhui Import and Export Inspection and Quarantine Bureau, Hefei, China
| | - Qi Chen
- Hefei Preschool Education College, Hefei, China
| | | | - Xueying Zhang
- Department of Epidemiology, Human Gneetics and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Lian Tong
- Department of Maternal, Child and Adolescent Health, Key Laboratory Public Health Safety, Fudan University, Shanghai, China
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Patjas A, Kantele A. International travel and travelers' diarrhea - Increased risk of urinary tract infection. Travel Med Infect Dis 2022; 48:102331. [PMID: 35447322 DOI: 10.1016/j.tmaid.2022.102331] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/11/2022] [Accepted: 04/14/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Urinary tract infections (UTIs) rank among the most common infections encountered in health care, with an annual incidence of 12% for women. Despite the vast numbers of international travels (over 1.5 billion annually), no prospective studies have had primary focus on UTIs during travel. METHODS We recruited in 2008-17 international travelers who all filled out pre- and post-travel questionnaires. Incidence rates of UTI were calculated separately for both sexes. Multivariable analyses were conducted to identify risk factors for UTI during travel. RESULTS In total 15/517 (2,9%) travelers acquired UTI during travel, yielding an annual incidence of 62% for female and 18% for male travelers. Travelers' diarrhea (TD) was identified as a factor predisposing to UTI (OR 9.2, 95% CI 1.5-+∞, p = 0.011); all UTI cases were recorded by travelers with TD. CONCLUSIONS To our knowledge, this is the first prospective study with a primary focus on UTI during travel. Our data reveal that among travelers the incidence of UTI far exceeds that reported for the general population. TD was identified as a major risk factor for the infection. Our results highlight the need for TD prevention as a means of also preventing UTI during travel.
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Affiliation(s)
- Anu Patjas
- Meilahti Infectious Diseases and Vaccine Research Center, MeiVac, Department of Infectious Diseases, University of Helsinki and Helsinki University Hospital, P.O. Box 700, FI-00029, HUS, Helsinki, Finland; Human Microbiome Research Unit, University of Helsinki, Finland; Travel Clinic, Aava Medical Center, Annankatu 32, FI-00100, Helsinki, Finland; Center of Excellence in Antimicrobial Resistance Research, University of Helsinki, Finland
| | - Anu Kantele
- Meilahti Infectious Diseases and Vaccine Research Center, MeiVac, Department of Infectious Diseases, University of Helsinki and Helsinki University Hospital, P.O. Box 700, FI-00029, HUS, Helsinki, Finland; Human Microbiome Research Unit, University of Helsinki, Finland; Travel Clinic, Aava Medical Center, Annankatu 32, FI-00100, Helsinki, Finland; Center of Excellence in Antimicrobial Resistance Research, University of Helsinki, Finland.
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Wang JL, Chen T, Deng LL, Han YJ, Wang DY, Wang LP, He GX. Epidemiological characteristics of imported respiratory infectious diseases in China, 2014‒2018. Infect Dis Poverty 2022; 11:22. [PMID: 35246236 PMCID: PMC8895356 DOI: 10.1186/s40249-022-00944-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 02/02/2022] [Indexed: 11/18/2022] Open
Abstract
Background With the progress of globalization, international mobility increases, greatly facilitating cross-border transmission of respiratory infectious diseases (RIDs). This study aimed to analyze the epidemiological characteristics and factors influencing imported RIDs, with the goal of providing evidence to support adoption of high-tech, intelligent methods to early find imported RIDs and prevent their spread in China. Methods We obtained data of imported RIDs cases from 2014 to 2018 from the Inbound Sentinel Network of Customs and the National Notifiable Diseases Reporting System in China. We analyzed spatial, temporal, and population distribution characteristics of the imported RIDs. We developed an index to describe seasonality. Pearson correlation coefficients were used to examine associations between independent variables and imported cases. Data analyses and visualizations were conducted with R software. Results From a total of 1 409 265 253 inbound travelers, 31 732 (2.25/100 000) imported RIDs cases were reported. RIDs cases were imported from 142 countries and five continents. The incidence of imported RIDs was nearly 5 times higher in 2018 (2.81/100 000) than in 2014 (0.58/100 000). Among foreigners, incidence rates were higher among males (5.32/100 000), 0–14-year-olds (15.15/100 000), and cases originating in Oceania (11.10/100 000). The vast majority (90.3%) of imported RIDs were influenza, with seasonality consistent with annual seasonality of influenza. The spatial distribution of imported RIDs was different between Chinese citizens and foreigners. Increases in inbound travel volume and the number of influenza cases in source countries were associated with the number of imported RIDs. Conclusions Our study documented importation of RIDs into China from 142 countries. Inbound travel poses a significant risks bringing important RIDs to China. It is urgent to strengthen surveillance at customs of inbound travelers and establish an intelligent surveillance and early warning system to prevent importation of RIDs to China for preventing further spread within China. Graphical Abstract ![]()
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Affiliation(s)
- Jin-Long Wang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Tao Chen
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Le-Le Deng
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Ya-Jun Han
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Da-Yan Wang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Li-Ping Wang
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China.
| | - Guang-Xue He
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
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Statsenko Y, Al Zahmi F, Habuza T, Almansoori TM, Smetanina D, Simiyu GL, Neidl-Van Gorkom K, Ljubisavljevic M, Awawdeh R, Elshekhali H, Lee M, Salamin N, Sajid R, Kiran D, Nihalani S, Loney T, Bedson A, Dehdashtian A, Al Koteesh J. Impact of Age and Sex on COVID-19 Severity Assessed From Radiologic and Clinical Findings. Front Cell Infect Microbiol 2022; 11:777070. [PMID: 35282595 PMCID: PMC8913498 DOI: 10.3389/fcimb.2021.777070] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 12/17/2021] [Indexed: 12/25/2022] Open
Abstract
Background Data on the epidemiological characteristics and clinical features of COVID-19 in patients of different ages and sex are limited. Existing studies have mainly focused on the pediatric and elderly population. Objective Assess whether age and sex interact with other risk factors to influence the severity of SARS-CoV-2 infection. Material and Methods The study sample included all consecutive patients who satisfied the inclusion criteria and who were treated from 24 February to 1 July 2020 in Dubai Mediclinic Parkview (560 cases) and Al Ain Hospital (605 cases), United Arab Emirates. We compared disease severity estimated from the radiological findings among patients of different age groups and sex. To analyze factors associated with an increased risk of severe disease, we conducted uni- and multivariate regression analyses. Specifically, age, sex, laboratory findings, and personal risk factors were used to predict moderate and severe COVID-19 with conventional machine learning methods. Results Need for O2 supplementation was positively correlated with age. Intensive care was required more often for men of all ages (p < 0.01). Males were more likely to have at least moderate disease severity (p = 0.0083). These findings were aligned with the results of biochemical findings and suggest a direct correlation between older age and male sex with a severe course of the disease. In young males (18–39 years), the percentage of the lung parenchyma covered with consolidation and the density characteristics of lesions were higher than those of other age groups; however, there was no marked sex difference in middle-aged (40–64 years) and older adults (≥65 years). From the univariate analysis, the risk of the non-mild COVID-19 was significantly higher (p < 0.05) in midlife adults and older adults compared to young adults. The multivariate analysis provided similar findings. Conclusion Age and sex were important predictors of disease severity in the set of data typically collected on admission. Sexual dissimilarities reduced with age. Age disparities were more pronounced if studied with the clinical markers of disease severity than with the radiological markers. The impact of sex on the clinical markers was more evident than that of age in our study.
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Affiliation(s)
- Yauhen Statsenko
- College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
- *Correspondence: Yauhen Statsenko, ; Fatmah Al Zahmi, ; Jamal Al Koteesh,
| | - Fatmah Al Zahmi
- Mediclinic Parkview Hospital, Dubai, United Arab Emirates
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates
- *Correspondence: Yauhen Statsenko, ; Fatmah Al Zahmi, ; Jamal Al Koteesh,
| | - Tetiana Habuza
- College of Information Technology, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Taleb M. Almansoori
- College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Darya Smetanina
- College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Gillian Lylian Simiyu
- College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Klaus Neidl-Van Gorkom
- College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Milos Ljubisavljevic
- College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Rasha Awawdeh
- Mediclinic Parkview Hospital, Dubai, United Arab Emirates
| | | | - Martin Lee
- Mediclinic Parkview Hospital, Dubai, United Arab Emirates
| | - Nassim Salamin
- Mediclinic Parkview Hospital, Dubai, United Arab Emirates
| | - Ruhina Sajid
- Mediclinic Parkview Hospital, Dubai, United Arab Emirates
| | - Dhanya Kiran
- Mediclinic Parkview Hospital, Dubai, United Arab Emirates
| | | | - Tom Loney
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates
| | - Antony Bedson
- Radiology Department, Sheikh Shakhbout Medical City, Al Ain, United Arab Emirates
| | | | - Jamal Al Koteesh
- College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
- Radiology Department, Tawam Hospital, Al Ain, United Arab Emirates
- *Correspondence: Yauhen Statsenko, ; Fatmah Al Zahmi, ; Jamal Al Koteesh,
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10
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Travelling with heart failure: risk assessment and practical recommendations. Nat Rev Cardiol 2022; 19:302-313. [PMID: 34992256 DOI: 10.1038/s41569-021-00643-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/01/2021] [Indexed: 01/08/2023]
Abstract
Patients with heart failure are at a higher risk of cardiovascular events compared with the general population, particularly during domestic or international travel. Patients with heart failure should adhere to specific recommendations during travel to lower their risk of developing heart failure symptoms. In this Review, we aim to provide clinicians with a set of guidelines for patients with heart failure embarking on national or international travel. Considerations when choosing a travel destination include travel distance and time, the season upon arrival, air pollution levels, jet lag and altitude level because all these factors can increase the risk of symptom development in patients with heart failure. In particular, volume depletion is of major concern while travelling given that it can contribute to worsening heart failure symptoms. Pre-travel risk assessment should be performed by a clinician 4-6 weeks before departure, and patients should receive advice on potential travel-related illness and on strategies to prevent volume depletion. Oxygen supplementation might be useful for patients who are very symptomatic. Upon arrival at the destination, potential drug-induced photosensitivity (particularly in tropical destinations) and risks associated with the local cuisine require consideration. Special recommendations are needed for patients with cardiac implantable electronic devices or left ventricular assist devices as well as for those who have undergone major cardiac surgery.
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11
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NO TIME TO DIE ? Could pre-travel health advice help Bond to live another day? Travel Med Infect Dis 2021; 44:102198. [PMID: 34748987 DOI: 10.1016/j.tmaid.2021.102198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Powell T. Development of Second-degree Frostbite in Two Service Members Wearing Issued Cold Weather Footgear Traversing Sea Ice. Mil Med 2021; 186:e1250-e1253. [PMID: 33269801 DOI: 10.1093/milmed/usaa384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/15/2020] [Accepted: 09/20/2020] [Indexed: 11/15/2022] Open
Abstract
Frostbite, or the freezing of the tissues by exposure to conditions below the freezing point of water, is an unsettling and potentially dangerous condition that one can develop while living and working in cold environments below 0°C without proper protections. Civilians and military personnel operating in prolonged field conditions in temperatures below freezing rely on advanced fabrics and multiple layers to maintain body heat around the extremities to prevent frostbite. Here, we detail the situation and findings of frostbite in 2 American service members who were exposed to temperatures of approximately -19.5°C for 5 hours while hiking on frozen sea ice. Notably, these members were wearing their issued cold weather equipment at the time of their injury. The personnel presented with the classic signs and symptoms of second-degree frostbite with blistering and tingling but went on to have no lasting serious sequelae. We find these cases important as it documents the inadequacy of the footgear utilized, despite being operated in weather conditions within the range of the manufacturer's safety recommendations. Sea ice and other very cold, conducting surfaces may require other gear considerations when operating in this unique terrain type.
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Affiliation(s)
- Thomas Powell
- The Ohio State University, Wexner Medical Center, Columbus, OH 43210, USA
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13
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Kaplan S, Khoury S, Zaidenstein R, Cohen E, Tischler-Aurkin D, Sheffer R, Lewis M, Mor Z. Morbidity among Israeli backpack travelers to tropical areas. Travel Med Infect Dis 2021; 45:102178. [PMID: 34687872 DOI: 10.1016/j.tmaid.2021.102178] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 09/21/2021] [Accepted: 10/18/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Travelers to tropical areas may be susceptible to illness or injuries. This study aims to assess morbidity among travelers during their travel and compare those who became ill or were injured with those who did not. METHODS This prospective study included 400 travelers who were counselled by a physician in pre-travel clinics in central Israel between 2017 and 2018. Participants were interviewed within a month after their return regarding morbidity during travel, including health problems that started one week following their return. RESULTS Most travelers (N = 320, 80%) reported at least one illness or injury. Illnesses/injuries were more common among females than males (84.9% vs. 75.1%, p = 0.01), travel periods longer than 30 days (87.7% vs. 77.2%, p = 0.03), and travelers accompanied by their friends or solo travelers compared with those who traveled with their family/partner (83.8% and 70.0%, respectively, p = 0.002). The most common complaint was diarrhea (N = 159, 49.6%), followed by high-altitude sickness (N = 118, 36.9%) and fever (N = 100, 31.2%). Altitude sickness symptoms were more common in females than in males (58.9% vs. 41.0%, p = 0.006) and in those who ascended rapidly in comparison to those who ascended gradually (58.7% vs. 44.6%, p = 0.04). Animal injury was reported by 30 (7.5%) participants yet only eight (27.0%) received medical care, seven of whom (23.3%) were vaccinated against rabies. CONCLUSIONS Being a female, traveling with friends or alone and longer travel periods were associated with illness/injury. Practitioners at pre-travel clinics should inform travelers of the possible risks including the potential severe consequences of rabies and altitude sickness.
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Affiliation(s)
- Shiran Kaplan
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Sobhi Khoury
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ronit Zaidenstein
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Internal Medicine Department A, Shamir (Assaf-Harofeh) Medical Center, Zerifin, Israel; Mor Travel Clinics, Israel
| | - Erica Cohen
- Mor Travel Clinics, Israel; Maccabi Healthcare Services, Tel Aviv, Israel
| | | | - Rivka Sheffer
- Tel Aviv Department of Health, Ministry of Health, Tel Aviv, Israel
| | - Matthew Lewis
- Mor Travel Clinics, Israel; Israel District Health Office, Ministry of Health, Israel
| | - Zohar Mor
- Mor Travel Clinics, Israel; Tel Aviv Department of Health, Ministry of Health, Tel Aviv, Israel; School of Health Sciences, Ashkelon Academic College, Ashkelon, Israel
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14
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Huits R, Schwartz E. Fatal outcomes of imported dengue fever in adult travelers from non-endemic areas are associated with primary infections. J Travel Med 2021; 28:6137752. [PMID: 33590860 DOI: 10.1093/jtm/taab020] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/28/2021] [Accepted: 02/04/2021] [Indexed: 01/22/2023]
Abstract
BACKGROUND The case-fatality rate of dengue in travelers is low. Secondary dengue virus (DENV) infections are considered a risk factor for fatal outcome in endemic populations; however, the impact of secondary infections on mortality in travelers has not been studied systematically. We performed a descriptive analysis of case reports of dengue fatalities in travelers. METHODS We searched Medline for clinical case reports, using the free terms and MeSH headings: 'Dengue' OR 'Severe Dengue' AND 'Travel-Related Illness' OR 'travel' AND 'Mortality' OR 'Fatal Outcome'. We analyzed case reports of fatal dengue in returning travelers published from 1995 to 2020, with the objective to detail risk factors for dengue mortality in this population. We verified the authors' classifications of primary or secondary dengue infections; infections were considered as primary by absence of anti-DENV immunoglobulin (Ig)G or by IgM-to-IgG ratios greater than or equal to 1.8 in the first 7 days post symptom onset. RESULTS We identified nine detailed reports of dengue with fatal outcome among travelers from non-endemic countries. Eight fatalities were female. The median age was 32 years (range 21-63). Out of nine fatal cases, seven travelers had a primary DENV infection, one had a secondary infection and, in one, these data were not reported. The infecting DENV serotypes were DENV-1 (n = 2), DENV-2 (n = 2) and DENV-3 (n = 3); DENV-1 or 2 (n = 1) and in one case, the serotype could not be determined. CONCLUSIONS Dengue-related deaths in travelers are rare. Most dengue cases in travelers are primary infections. Contrary to prevailing conceptions, we found that fatal outcomes of dengue in travelers from non-endemic countries were reported mainly with primary DENV infections. We alert health care providers that primary DENV infections are not always harmless and that in adult travelers from non-endemic countries, primary infections may contribute more to dengue-related mortality than secondary infections.
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Affiliation(s)
- Ralph Huits
- Department of Clinical Sciences, Institute of Tropical Medicine, Nationalestraat 155, B-20000 Antwerp, Belgium
| | - Eli Schwartz
- The Center for Travel and Tropical Medicine, Sheba Medical Center, Ramat Gan, 52621, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel
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15
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Katswara T, Mukaratirwa S. Knowledge, attitudes and practices on African tick bite fever of rural livestock communities living in a livestock-wildlife interface area in the Eastern Cape Province of South Africa. BMC Infect Dis 2021; 21:497. [PMID: 34049499 PMCID: PMC8161941 DOI: 10.1186/s12879-021-06174-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 05/12/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND African tick bite fever (ATBF) caused by Rickettsia africae and transmitted by Amblyomma spp. ticks is one of the zoonotic tick-borne fevers from the spotted fever group (SFG) of rickettsiae, which is an emerging global health concern. There is paucity of information regarding the occurrence and awareness of the disease in endemic rural livestock farming communities living in livestock-wildlife interface areas in South Africa. METHODS The purpose of the study was to assess the level of knowledge, attitudes and practices on ticks and ATBF infection from a community living in livestock-wildlife interface areas in South Africa. A focus group discussion (FGD) was carried out followed by verbal administration of a standardized semi-structured questionnaire a month later to 38 rural livestock farmers (23 from Caquba area and 15 from Lucingweni area where A. hebraeum was absent). An FGD was conducted in Caquba (situated at the livestock-wildlife interface where Amblyomma hebraeum was prevalent on cattle and infected with Rickettsia africae) in the O.R. Tambo district of the Eastern Cape province of South Africa. RESULTS Results from the FGD and questionnaire survey showed that participants from the two rural communities were not aware of ATBF and were not aware that ticks are vectors of the disease. Respondents from Caquba reported of having frequent exposure to tick bites (91.3%, 21/23) specifically from the anthropophilic A. hebrauem which they were able to identify as Qwelagqibe in IsiXhosa (their vernacular). Thirteen out of 15 (86.7%) of respondents from Lucingweni reported that they had never been bitten by ticks, which corresponded with the absence of A. hebraeum from their locality as evidenced from results of a concurrent study on prevalence of ticks on livestock in the area. Both communities confirmed to being "very concerned" of tick bites and we presume this was more related to the localized wounds from the bites than to the diseases transmitted by the ticks. CONCLUSIONS We recommend future studies encompassing seroprevalence of ATBF in Caquba and other communities at risk in South Africa including establishing surveillance systems to monitor the seasonal infection rates in ticks, cattle and humans.
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Affiliation(s)
- Tandiwe Katswara
- School of Life Sciences, Biological Sciences Section, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Westville Campus, Durban, 4000, South Africa
| | - Samson Mukaratirwa
- School of Life Sciences, Biological Sciences Section, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Westville Campus, Durban, 4000, South Africa.
- One Health Center for Zoonoses and Tropical Veterinary Medicine, Ross University School of Veterinary Medicine, Basseterre, Saint Kitts and Nevis.
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16
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Manesh A, Meltzer E, Jin C, Britto C, Deodhar D, Radha S, Schwartz E, Rupali P. Typhoid and paratyphoid fever: a clinical seminar. J Travel Med 2021; 28:6129661. [PMID: 33550411 DOI: 10.1093/jtm/taab012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 01/07/2021] [Indexed: 01/06/2023]
Abstract
Rationale for review: Enteric fever (EF) caused by Salmonella enterica subspecies enterica serovar Typhi (Salmonella Typhi) and S. Paratyphi (Salmonella Paratyphi) remains an important cause of infectious morbidity and mortality in many low-income countries and, therefore, still poses a major infectious risk for travellers to endemic countries. Main findings: Although the global burden of EF has decreased over the past two decades, prevalence of EF remains high in Asia and Africa, with the highest prevalence reported from the Indian subcontinent. These statistics are mirrored by data on travel-related EF. Widespread and increasing antimicrobial resistance has narrowed treatment options for travel-related EF. Ceftriaxone- and azithromycin-based therapies are commonly used, even with the emergence of extremely drug-resistant typhoid in Pakistan. Preventive measures among locals and travellers include provision of safe food and water and vaccination. Food and water precautions offer limited protection, and the efficacy of Salmonella Typhi vaccines is only moderate signifying the need for travellers to be extra cautious. Recommendations: Improvement in the diagnosis of typhoid with high degree of clinical suspicion, better diagnostic assays, early and accurate detection of resistance, therapy with appropriate drugs, improvements in hygiene and sanitation with provision of safe drinking water in endemic areas and vaccination among travellers as well as in the endemic population are keys to controlling typhoid. While typhoid vaccines are recommended for travellers to high-risk areas, moderate efficacy and inability to protect against Salmonella Paratyphi are limitations to bear in mind. Improved Salmonella Typhi vaccines and vaccines against Salmonella Paratyphi A are required.
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Affiliation(s)
- Abi Manesh
- Department of Infectious Diseases, Christian Medical College, Vellore, India
| | - Eyal Meltzer
- Department of Medicine `C', Center for Geographic Medicine, Sheba Medical Center, Tel-Hashomer, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Celina Jin
- Oxford Vaccine Group, Department of Pediatrics, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Carl Britto
- Oxford Vaccine Group, Department of Pediatrics, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Divya Deodhar
- Department of Infectious Diseases, Christian Medical College, Vellore, India
| | - Sneha Radha
- Department of Infectious Diseases, Christian Medical College, Vellore, India
| | - Eli Schwartz
- Department of Medicine `C', Center for Geographic Medicine, Sheba Medical Center, Tel-Hashomer, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Priscilla Rupali
- Department of Infectious Diseases, Christian Medical College, Vellore, India
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17
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Kendjo E, Thellier M, Noël H, Jauréguiberry S, Septfons A, Mouri O, Gay F, Tantaoui I, Caumes E, Houzé S, Piarroux R. Mortality from malaria in France, 2005 to 2014. ACTA ACUST UNITED AC 2021; 25. [PMID: 32914747 PMCID: PMC7502900 DOI: 10.2807/1560-7917.es.2020.25.36.1900579] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Introduction Malaria is a notifiable disease in all European Union and European Economic Area countries except Belgium and France, where only autochthonous malaria is notifiable. Although morbidity caused by malaria has been assessed, little is known about mortality incidence. Objective Our aim was to estimate the number of imported malaria-related deaths in hospital in metropolitan France. Methods We matched individual deaths reported between 1 January 2005 and 31 December 2014 to the French National Reference Centre for malaria (FNRCm) with malaria-related deaths from two other sources: the French National Registry on medical causes of death and the French national hospital discharge database. A capture–recapture method with log-linear modelling was used. Age, sex and place of death stratification were applied to remove heterogeneity. Results The estimated malaria-related deaths in metropolitan France during the study period were 205 (95% confidence interval (CI): 191–219). The annual mean number of malaria-related deaths was estimated at 21 (95% CI: 19–22). The FNRCm malaria-related deaths surveillance had a 38% sensitivity (95% CI: 32–44). Among 161 in-hospital individual malaria-related deaths reported from three data sources, the sex ratio (male to female) was 2.6. Median age of the patients was 57 years, ranging from 1 to 89 years. Conclusion The pertinent finding of this report is that malaria-related death records were significantly more complete than case records. Therefore, data comparison of imported malaria morbidity and mortality between countries should imperatively be assessed using standard indicators weighted according to the completeness of health surveillance systems.
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Affiliation(s)
- Eric Kendjo
- AP-HP, Centre National de Référence du Paludisme, Paris, France.,Sorbonne Université, INSERM, Institut Pierre-Louis d'Epidémiologie et de Santé Publique, AP-HP, Laboratoire de Parasitologie, Mycologie, Hôpital Pitié-Salpêtrière, Paris, France
| | - Marc Thellier
- AP-HP, Centre National de Référence du Paludisme, Paris, France.,Sorbonne Université, INSERM, Institut Pierre-Louis d'Epidémiologie et de Santé Publique, AP-HP, Laboratoire de Parasitologie, Mycologie, Hôpital Pitié-Salpêtrière, Paris, France
| | - Harold Noël
- Santé Publique France, Direction des Maladies Infectieuses, Saint-Maurice, France
| | - Stéphane Jauréguiberry
- Sorbonne Université, INSERM, Institut Pierre-Louis d'Epidémiologie et de Santé Publique, AP-HP, Service des Maladies Infectieuses, Hôpital Pitié-Salpêtrière, Paris, France.,AP-HP, Centre National de Référence du Paludisme, Paris, France
| | - Alexandra Septfons
- Santé Publique France, Direction des Maladies Infectieuses, Saint-Maurice, France
| | - Oussama Mouri
- AP-HP, Centre National de Référence du Paludisme, Paris, France.,Sorbonne Université, INSERM, Institut Pierre-Louis d'Epidémiologie et de Santé Publique, AP-HP, Laboratoire de Parasitologie, Mycologie, Hôpital Pitié-Salpêtrière, Paris, France
| | - Frédérick Gay
- AP-HP, Centre National de Référence du Paludisme, Paris, France.,Sorbonne Université, INSERM, Institut Pierre-Louis d'Epidémiologie et de Santé Publique, AP-HP, Laboratoire de Parasitologie, Mycologie, Hôpital Pitié-Salpêtrière, Paris, France
| | - Ilhame Tantaoui
- AP-HP, Centre National de Référence du Paludisme, Paris, France.,Sorbonne Université, INSERM, Institut Pierre-Louis d'Epidémiologie et de Santé Publique, AP-HP, Laboratoire de Parasitologie, Mycologie, Hôpital Pitié-Salpêtrière, Paris, France
| | - Eric Caumes
- Sorbonne Université, INSERM, Institut Pierre-Louis d'Epidémiologie et de Santé Publique, AP-HP, Service des Maladies Infectieuses, Hôpital Pitié-Salpêtrière, Paris, France
| | - Sandrine Houzé
- Université de Paris, MERIT, IRD, Paris, France.,Centre National de Référence du Paludisme, Hôpital Bichat, AP-HP, Paris, France
| | - Renaud Piarroux
- AP-HP, Centre National de Référence du Paludisme, Paris, France.,Sorbonne Université, INSERM, Institut Pierre-Louis d'Epidémiologie et de Santé Publique, AP-HP, Laboratoire de Parasitologie, Mycologie, Hôpital Pitié-Salpêtrière, Paris, France
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- The members of the French imported malaria Study group are acknowledged at the end of this article
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18
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Barclay H, Mukerji S, Kayser B, O'Donnell T, Tzeng YC, Hill S, Knapp K, Legg S, Frei D, Fan JL. Respiratory alkalinization and posterior cerebral artery dilatation predict acute mountain sickness severity during 10 h normobaric hypoxia. Exp Physiol 2020; 106:175-190. [PMID: 33347666 DOI: 10.1113/ep088938] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 12/07/2020] [Indexed: 12/12/2022]
Abstract
NEW FINDINGS What is the central question of this study? The pathophysiology of acute mountain sickness (AMS), involving the respiratory, renal and cerebrovascular systems, remains poorly understood. How do the early adaptations in these systems during a simulated altitude of 5000 m relate to AMS risk? What is the main finding and its importance? The rate of blood alkalosis and cerebral artery dilatation predict AMS severity during the first 10 h of exposure to a simulated altitude of 5000 m. Slow metabolic compensation by the kidneys of respiratory alkalosis attributable to a brisk breathing response together with excessive brain blood vessel dilatation might be involved in early development of AMS. ABSTRACT The complex pathophysiology of acute mountain sickness (AMS) remains poorly understood and is likely to involve maladaptive responses of the respiratory, renal and cerebrovascular systems to hypoxia. Using stepwise linear regression, we tested the hypothesis that exacerbated respiratory alkalosis, as a result of a brisk ventilatory response, sluggish renal compensation in acute hypoxia and dysregulation of cerebral perfusion predict AMS severity. We assessed the Lake Louise score (LLS, an index of AMS severity), fluid balance, ventilation, venous pH, bicarbonate, sodium and creatinine concentrations, body weight, urinary pH and cerebral blood flow [internal carotid artery (ICA) and vertebral artery (VA) blood flow and diameter], in 27 healthy individuals (13 women) throughout 10 h exposures to normobaric normoxia (fraction of inspired O2 = 0.21) and normobaric hypoxia (fraction of inspired O2 = 0.117, simulated 5000 m) in a randomized, single-blinded manner. In comparison to normoxia, hypoxia increased the LLS, ventilation, venous and urinary pH, and blood flow and diameter in the ICA and VA, while venous concentrations of both bicarbonate and creatinine were decreased (P < 0.001 for all). There were significant correlations between AMS severity and the rates of change in blood pH, sodium concentration and VA diameter and more positive fluid balance (P < 0.05). Stepwise regression found increased blood pH [beta coefficient (β) = 0.589, P < 0.001] and VA diameter (β = 0.418, P = 0.008) to be significant predictors of AMS severity in our cohort [F(2, 20) = 16.1, R2 = 0.617, P < 0.001, n = 24], accounting for 62% of the variance in peak LLS. Using classic regression variable selection, our data implicate the degree of respiratory alkalosis and cerebrovascular dilatation in the early stages of AMS development.
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Affiliation(s)
- Holly Barclay
- Wellington Medical Technology Group, Department of Surgery & Anaesthesia, University of Otago, Wellington, New Zealand.,Centre for Translational Physiology, University of Otago, Wellington, New Zealand
| | - Saptarshi Mukerji
- Emergency Department, Wellington Regional Hospital, Capital & Coast District Health Board, Wellington, New Zealand
| | - Bengt Kayser
- Institute of Sport Sciences, University of Lausanne, Lausanne, Switzerland
| | - Terrence O'Donnell
- Wellington Medical Technology Group, Department of Surgery & Anaesthesia, University of Otago, Wellington, New Zealand.,Centre for Translational Physiology, University of Otago, Wellington, New Zealand
| | - Yu-Chieh Tzeng
- Wellington Medical Technology Group, Department of Surgery & Anaesthesia, University of Otago, Wellington, New Zealand.,Centre for Translational Physiology, University of Otago, Wellington, New Zealand
| | - Stephen Hill
- School of Psychology, Massey University, Palmerston North, New Zealand
| | - Katie Knapp
- School of Psychology, Massey University, Palmerston North, New Zealand
| | - Stephen Legg
- Centre for Ergonomics, Occupational Health and Safety, Massey University, Palmerston North, New Zealand
| | - Dan Frei
- Department of Anaesthesia and Pain Medicine, Wellington Regional Hospital, Capital & Coast District Health Board, Wellington, New Zealand
| | - Jui-Lin Fan
- Department of Physiology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
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19
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Ashbaugh HR, Early JM, Johnson ME, Simons MP, Graf PCF, Riddle MS, Swierczewski BE, For The Gtd Study Team. A Multisite Network Assessment of the Epidemiology and Etiology of Acquired Diarrhea among U.S. Military and Western Travelers (Global Travelers' Diarrhea Study): A Principal Role of Norovirus among Travelers with Gastrointestinal Illness. Am J Trop Med Hyg 2020; 103:1855-1863. [PMID: 32959765 PMCID: PMC7646805 DOI: 10.4269/ajtmh.20-0053] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
U.S. military personnel must be ready to deploy to locations worldwide, including environments with heightened risk of infectious disease. Diarrheal illnesses continue to be among the most significant infectious disease threats to operational capability. To better prevent, detect, and respond to these threats and improve synchronization across the Department of Defense (DoD) overseas laboratory network, a multisite Global Travelers’ Diarrhea protocol was implemented with standardized case definitions and harmonized laboratory methods to identify enteric pathogens. Harmonized laboratory procedures for detection of Norovirus (NoV), enterotoxigenic Escherichia coli (ETEC), enteroaggregative E. coli, Shiga toxin–producing E. coli, enteropathogenic E. coli, Salmonella enterica, Shigella/enteroinvasive E. coli, and Campylobacter jejuni have been implemented at six DoD laboratories with surveillance sites in Egypt, Honduras, Peru, Nepal, Thailand, and Kenya. Samples from individuals traveling from wealthy to poorer countries were collected between June 2012 and May 2018, and of samples with all variables of interest available (n = 410), most participants enrolled were students (46%), tourists (26%), U.S. military personnel (13%), or other unspecified travelers (11%). One or more pathogens were detected in 59% of samples tested. Of samples tested, the most commonly detected pathogens were NoV (24%), ETEC (16%), and C. jejuni (14%), suggesting that NoV plays a larger role in travelers’ diarrhea than has previously been described. Harmonized data collection and methods will ensure identification and characterization of enteric pathogens are consistent across the DoD laboratory network, ultimately resulting in more comparable data for global assessments, preventive measures, and treatment recommendations.
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Affiliation(s)
- Hayley R Ashbaugh
- Public Health Directorate, Armed Forces Health Surveillance Division, Global Emerging Infections Surveillance, Silver Spring, Maryland
| | - June M Early
- General Dynamics Information Technology, Silver Spring, Maryland.,Public Health Directorate, Armed Forces Health Surveillance Division, Global Emerging Infections Surveillance, Silver Spring, Maryland
| | - Myles E Johnson
- General Dynamics Information Technology, Silver Spring, Maryland.,Public Health Directorate, Armed Forces Health Surveillance Division, Global Emerging Infections Surveillance, Silver Spring, Maryland
| | - Mark P Simons
- Naval Medical Research Center, Silver Spring, Maryland
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Lago K, Telu K, Tribble D, Ganesan A, Kunz A, Geist C, Fraser J, Mitra I, Lalani T, Yun HC. Doxycycline Malaria Prophylaxis Impact on Risk of Travelers' Diarrhea among International Travelers. Am J Trop Med Hyg 2020; 103:1864-1870. [PMID: 32815505 PMCID: PMC7646764 DOI: 10.4269/ajtmh.20-0241] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 07/11/2020] [Indexed: 12/21/2022] Open
Abstract
International travelers are frequently at risk for travelers' diarrhea (TD) and malaria. Doxycycline was one of the earliest antibiotics shown to have efficacy in TD prevention. With increasing resistance and recommendations against antibiotic chemoprophylaxis, doxycycline fell out of use. We evaluated TD incidence and risk factors in a prospective cohort of travelers, specifically in regard to malaria prophylaxis. Travelers' diarrhea was defined as ≥ 3 loose stools in 24 hours or two loose stools in 24 hours associated with other gastrointestinal symptoms. The Poisson regression model with robust error variance was used to estimate the RR of TD. Three thousand two hundred twenty-seven trips were enrolled: 62.1% of participants were male, with a median age of 39 years (interquartile range [IQR] 27,59) and a median travel duration of 19 days (IQR 12,49); 17.4% developed TD; 32% traveled to Africa, 40% to Asia, and 27% to the Caribbean and Latin America; and 20% took doxycycline for malaria chemoprophylaxis, 50% took other antimalarials, and 30% took none. Decreased RR of TD was associated with doxycycline (RR 0.62 [0.47-0.82], P < 0.01) and military travel (RR 0.57 [0.47-0.70], P < 0.01). Increased risk of TD was associated with female gender (RR 1.28 [1.09-1.50], P < 0.01), hotel accommodations (RR 1.30 [1.10-1.53], P < 0.01), travel to tropical South America (RR 1.34 [1.09-1.64], P < 0.01), and duration of travel (RR 1.00 [1.00-1.01], P < 0.01). The use of doxycycline for malaria prophylaxis is associated with lower TD risk, suggesting increasing bacterial enteropathogen susceptibility similar to previous observations. Doxycycline selection for antimalarial chemoprophylaxis may provide additional traveler benefit in infection prevention.
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Affiliation(s)
- Kathryn Lago
- Brooke Army Medical Center, Fort Sam Houston, Texas
- Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Kalyani Telu
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland
| | - David Tribble
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Anuradha Ganesan
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland
- Walter Reed National Military Medical Center, Bethesda, Maryland
| | - Anjali Kunz
- Madigan Army Medical Center, Tacoma, Washington
| | - Charla Geist
- Landstuhl Regional Medical Center, Landstuhl, Germany
| | - Jamie Fraser
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland
| | - Indrani Mitra
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland
| | - Tahaniyat Lalani
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland
- Naval Medical Center, Portsmouth, Virginia
| | - Heather C. Yun
- Brooke Army Medical Center, Fort Sam Houston, Texas
- Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - for the Infectious Disease Clinical Research Program TravMil Study Group
- Brooke Army Medical Center, Fort Sam Houston, Texas
- Uniformed Services University of the Health Sciences, Bethesda, Maryland
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland
- Walter Reed National Military Medical Center, Bethesda, Maryland
- Madigan Army Medical Center, Tacoma, Washington
- Landstuhl Regional Medical Center, Landstuhl, Germany
- Naval Medical Center, Portsmouth, Virginia
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Tardivo S, Zenere A, Moretti F, Marchiori F, Berti D, Migliorini M, Tomasi A, Ferrari S, Tognon F, Napoletano G, Rossanese A. The Traveller's Risk Perception (TRiP) questionnaire: pre-travel assessment and post-travel changes. Int Health 2020; 12:116-124. [PMID: 31294781 PMCID: PMC7057134 DOI: 10.1093/inthealth/ihz033] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 03/18/2019] [Accepted: 06/14/2019] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Travellers' risk perception is a key component of travel risk assessment because it influences the adequate implementation of safety precautions. The aims of this study are to validate a tool to analyse travellers' risk perception to identify which factors can influence it and how it changes upon return. METHODS The Traveller's Risk Perception (TRiP) questionnaire was developed and administered to outpatients before and after travel in three travel clinics. A principal component analysis (PCA) was performed to validate the questionnaire and multivariate regression analysis was used to evaluate the effect of travellers' characteristics on the risk scores. RESULTS A total of 1020 travellers completed the questionnaire. PCA identified two latent factors: 'generic-disseminated risks' and 'specific-circumstantial risks'. Cronbach's α was acceptable (0.76 and 0.70, respectively). The 'generic-disseminated risks' dimension scored higher than the 'specific-circumstantial risks' (p<0.001). The items with the highest scores were insect bites, gastrointestinal disorders and malaria. The mean scores were significantly lower after the travel for all items but one. CONCLUSIONS The TRiP questionnaire is a valid and reliable tool for rating travellers' perceptions. Staff in travel clinics should be trained to systematically assess travellers' risk perception in order to tailor the consultation according to specific information needs.
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Affiliation(s)
- S Tardivo
- Departments of Diagnostics and Public Health University of Verona, Verona, Italy
| | - A Zenere
- Departments of Diagnostics and Public Health University of Verona, Verona, Italy
| | - F Moretti
- Departments of Diagnostics and Public Health University of Verona, Verona, Italy
| | - F Marchiori
- Departments of Diagnostics and Public Health University of Verona, Verona, Italy
| | - D Berti
- Departments of Diagnostics and Public Health University of Verona, Verona, Italy
| | - M Migliorini
- Departments of Diagnostics and Public Health University of Verona, Verona, Italy
| | - A Tomasi
- Public Health Department, Lucca, Italy
| | - S Ferrari
- Departments of Diagnostics and Public Health University of Verona, Verona, Italy
| | - F Tognon
- Departments of Diagnostics and Public Health University of Verona, Verona, Italy
| | | | - A Rossanese
- IRCCS Sacro Cuore Don Calabria Hospital, Verona, Italy
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McAlester C, Cesario SK, Kirkland T. Travel Health Implications for Women Traveling Abroad. Nurs Womens Health 2020; 24:143-148. [PMID: 32109441 PMCID: PMC7194900 DOI: 10.1016/j.nwh.2020.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 12/04/2019] [Accepted: 01/01/2020] [Indexed: 11/29/2022]
Abstract
International travel is increasing each year, and many travelers are female. Travel-related health risks include diseases, accidents, and other safety concerns. Whether traveling for business or pleasure, women should practice appropriate measures that minimize the impact travel can have on their health and well-being. Female travelers can have unique health risks related to pregnancy, lactation, and infectious disease. A large part of pretravel health preparation is often performed by nurses and should include a comprehensive health risk assessment, education, and vaccinations, all of which can help mitigate potential health risks for travelers.
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Marasinghe DH, Cheaveau J, Meatherall B, Kuhn S, Vaughan S, Zimmer R, Pillai DR. Risk of malaria associated with travel to malaria-endemic areas to visit friends and relatives: a population-based case-control study. CMAJ Open 2020; 8:E60-E68. [PMID: 31992561 PMCID: PMC6996033 DOI: 10.9778/cmajo.20190070] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Reports relying on population-based data and using epidemiologic methodologies such as case-control study designs for malaria in travellers and multivariable regression analysis of risk factors are rare. The aim of this study was to investigate the epidemiologic characteristics of travellers who tested positive for malaria after visiting friends and relatives in malaria-endemic areas to determine the risk of malaria associated with such travel. METHODS Using routinely collected data from a population-based laboratory database, we conducted a case-control study of symptomatic people returning from travel to malaria-endemic areas who presented for malaria testing in Calgary from 2013 to 2017. We used a multivariable logistic regression to analyze the association between the presence of malaria and other risk factors. RESULTS There were 251 confirmed malaria cases during the study period, of which 219 were matched to 1129 returning travellers without malaria. Based on the multivariable regression, the odds of a traveller who visited friends and relatives in malariaendemic areas being diagnosed with malaria was 2.82 (95% confidence interval [CI] 1.42-5.92) times greater than that of other travellers to these regions. Adults (odds ratio [OR] 3.62, 95% CI 1.66-8.84), males (OR 2.70, 95% CI 1.56-4.80), travellers to Africa (OR 11.52, 95% CI 6.33-22.05) and those who did not seek pretravel advice (OR 0.38, 95% CI 0.20-0.70) were more likely to be diagnosed with malaria. Although those travelling to visit friends and relatives tended to stay longer in endemic areas than other travellers, visit duration was not associated with an increased likelihood of malaria in the model. The annual incidence of malaria was highest (13.34 per 100 000) in metropolitan wards associated with lower socioeconomic status and immigrant communities. INTERPRETATION Travellers who visited friends and relatives in malaria-endemic areas were less likely than other travellers to these regions to seek pretravel advice, take prophylaxis and have a visit duration less than 2 weeks; travelling to Africa and being male increased the odds of being diagnosed with malaria, independent of other factors. These data suggest that targeted strategies to provide pretravel care to travellers who visit friends and relatives in malaria-endemic areas may aid in reducing the burden of malaria in this population.
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Affiliation(s)
- Dewdunee H Marasinghe
- Department of Epidemiology, Biostatistics and Occupational Health (Marasinghe), McGill University, Montréal, Que.; Departments of Microbiology, Immunology and Infectious Diseases (Cheaveau, Pillai), Medicine (Meatherall, Vaughan, Pillai), Pediatrics (Kuhn), Community Health Sciences (Zimmer, Pillai) and Pathology and Laboratory Medicine (Pillai), University of Calgary, Calgary, Alta
| | - James Cheaveau
- Department of Epidemiology, Biostatistics and Occupational Health (Marasinghe), McGill University, Montréal, Que.; Departments of Microbiology, Immunology and Infectious Diseases (Cheaveau, Pillai), Medicine (Meatherall, Vaughan, Pillai), Pediatrics (Kuhn), Community Health Sciences (Zimmer, Pillai) and Pathology and Laboratory Medicine (Pillai), University of Calgary, Calgary, Alta
| | - Bonnie Meatherall
- Department of Epidemiology, Biostatistics and Occupational Health (Marasinghe), McGill University, Montréal, Que.; Departments of Microbiology, Immunology and Infectious Diseases (Cheaveau, Pillai), Medicine (Meatherall, Vaughan, Pillai), Pediatrics (Kuhn), Community Health Sciences (Zimmer, Pillai) and Pathology and Laboratory Medicine (Pillai), University of Calgary, Calgary, Alta
| | - Susan Kuhn
- Department of Epidemiology, Biostatistics and Occupational Health (Marasinghe), McGill University, Montréal, Que.; Departments of Microbiology, Immunology and Infectious Diseases (Cheaveau, Pillai), Medicine (Meatherall, Vaughan, Pillai), Pediatrics (Kuhn), Community Health Sciences (Zimmer, Pillai) and Pathology and Laboratory Medicine (Pillai), University of Calgary, Calgary, Alta
| | - Stephen Vaughan
- Department of Epidemiology, Biostatistics and Occupational Health (Marasinghe), McGill University, Montréal, Que.; Departments of Microbiology, Immunology and Infectious Diseases (Cheaveau, Pillai), Medicine (Meatherall, Vaughan, Pillai), Pediatrics (Kuhn), Community Health Sciences (Zimmer, Pillai) and Pathology and Laboratory Medicine (Pillai), University of Calgary, Calgary, Alta
| | - Rudolf Zimmer
- Department of Epidemiology, Biostatistics and Occupational Health (Marasinghe), McGill University, Montréal, Que.; Departments of Microbiology, Immunology and Infectious Diseases (Cheaveau, Pillai), Medicine (Meatherall, Vaughan, Pillai), Pediatrics (Kuhn), Community Health Sciences (Zimmer, Pillai) and Pathology and Laboratory Medicine (Pillai), University of Calgary, Calgary, Alta
| | - Dylan R Pillai
- Department of Epidemiology, Biostatistics and Occupational Health (Marasinghe), McGill University, Montréal, Que.; Departments of Microbiology, Immunology and Infectious Diseases (Cheaveau, Pillai), Medicine (Meatherall, Vaughan, Pillai), Pediatrics (Kuhn), Community Health Sciences (Zimmer, Pillai) and Pathology and Laboratory Medicine (Pillai), University of Calgary, Calgary, Alta.
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Meningococcal Vaccine for Hajj Pilgrims: Compliance, Predictors, and Barriers. Trop Med Infect Dis 2019; 4:tropicalmed4040127. [PMID: 31618945 PMCID: PMC6958484 DOI: 10.3390/tropicalmed4040127] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/02/2019] [Accepted: 10/09/2019] [Indexed: 02/07/2023] Open
Abstract
Background: Major intercontinental outbreaks of invasive meningococcal disease associated with the Hajj occurred in 1987, 2000, and 2001. Mandatory meningococcal vaccination for all pilgrims against serogroups A and C and, subsequently, A, C, W, and Y controlled the epidemics. Overseas pilgrims show excellent adherence to the policy; however, vaccine uptake among domestic pilgrims is suboptimal. This survey aimed to evaluate meningococcal vaccine uptake among Hajj pilgrims and to identify key factors affecting this. Methods: An anonymous cross-sectional survey was conducted among pilgrims in Greater Makkah during the Hajj in 2017–2018. Data on socio-demographic characteristics, vaccination status, cost of vaccination, and reasons behind non-receipt of the vaccine were collected. Results: A total of 509 respondents aged 13 to 82 (median 33.8) years participated in the survey: 86% male, 85% domestic pilgrims. Only 389/476 (81.7%) confirmed their meningococcal vaccination status; 64 individuals (13.4%), all domestic pilgrims, did not receive the vaccine, and 23 (4.8%) were unsure. Among overseas pilgrims, 93.5% certainly received the vaccine (6.5% were unsure) compared to 80.9% of domestic pilgrims (p < 0.01). Being employed and having a tertiary qualification were significant predictors of vaccination adherence (odds ratio (OR) = 2.2, 95% confidence interval (CI) = 1.3–3.8, p < 0.01; and OR = 1.7, CI = 1–2.5, p < 0.05, respectively). Those who obtained pre-Hajj health advice were more than three times as likely to be vaccinated than those who did not (OR = 3.3, CI = 1.9–5.9, p < 0.001). Lack of awareness (63.2%, 36/57) and lack of time (15.8%, 9/57) were the most common reasons reported for non-receipt of vaccine. Conclusion: Many domestic pilgrims missed the compulsory meningococcal vaccine; in this regard, lack of awareness is a key barrier. Being an overseas pilgrim (or living at a distance from Makkah), receipt of pre-Hajj health advice, and employment were predictors of greater compliance with the vaccination policy. Opportunities remain to reduce the policy–practice gap among domestic pilgrims.
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A Review of Guidelines/Guidance from Various Countries Around the World for the Prevention and Management of Travellers' Diarrhoea: A Pharmacist's Perspective. PHARMACY 2019; 7:pharmacy7030107. [PMID: 31382691 PMCID: PMC6789525 DOI: 10.3390/pharmacy7030107] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 06/20/2019] [Accepted: 07/23/2019] [Indexed: 01/23/2023] Open
Abstract
International travel is growing and pharmacists are well placed to provide travel health services for the prevention and management of travellers’ diarrhoea (TD). Legislation changes in many countries has enabled pharmacists to access prescription only medicines and vaccinations to provide advice and over the counter medicines for the prevention and management for travel health services; this makes sense since pharmacies are easily accessible to the public and are the patient’s first port of call in the event of any illness. Currently, whilst many guidelines/guidance exist worldwide for the prevention and management of TD, there is no review that focuses on similarities and differences between these and between guidelines on TD and travel related and non-travel related acute diarrhoea. There is also a lack of publication on legislation and the need for evidence based training for all prescribers to provide travel health services. The aims of this work were to review guidelines/guidance for the prevention and management of TD from across the world which were compared with each other as were the TD guidelines compared to that for travel related and non-travel related acute diarrhoea for similarities and differences, with a focus on any relevant pharmacy legislation, needs assessments and training that may impact upon provision of travel health services by pharmacists focusing mainly on TD in adults. The PubMed, Google Scholar and Cochrane database were used to carry out an online search for publications on TD, acute diarrhoea and the guidance pharmacists have in the prevention and management of diarrhoea. The literature reviewed in this article indicates that where no specific guidelines/guidance existed, some pharmacists used the WHO guidelines (WHO), highlighting a need for local, regional and national evidence based guidelines in these countries.
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Epidemiological and etiological features of travel-related febrile illnesses in hospitalized Russian children and adults: A single-centre, retrospective analysis in Moscow. Travel Med Infect Dis 2019; 34:101447. [PMID: 31284068 DOI: 10.1016/j.tmaid.2019.07.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 07/03/2019] [Accepted: 07/05/2019] [Indexed: 02/05/2023]
Abstract
BACKGROUND A number of factors can lead to differences in infectious disease morbidity in children versus adults after a trip abroad. We aimed to investigate the epidemiological and etiological features of infectious diseases in children after international travel. METHODS we analyzed the medical records of 2135 patients (416 children) who were hospitalized during the period 2009-2017 after return from international travel. RESULTS Hospitalized children were under the age of 1 year in 8.7% of cases, 1-3 years - 39.4%, 4-6 years - 17.3%, 7-11 years - 16.8%, 12-17 years - 17.8%. Children were hospitalized after visiting the following main destinations: Turkey (15%), Egypt (12%), Central Asia microregion [11%] and Thailand (9%). Hospitalizations among children occurred mainly in summer (38.0%; CI 33.3-42.4). In adults there were no significant seasonal differences. Children were more likely to have acute diarrhea (18.3 vs 11.1%), acute respiratory tract infections (51.2 vs 41.2%) and enterovirus infections (8.2 vs 3.1%). Among the non-endemic infections for Russia, 8 children were diagnosed with dengue fever, 1 with typhoid, 1 with malaria, and 1 with wild-poliovirus excretion. CONCLUSION children were mainly hospitalized during summer. Among hospitalized children, almost half was under 3 years old. In children acute respiratory infection and intestinal infections predominated, while in adults, vector-borne diseases were more frequently observed.
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Kobets T, Čepičková M, Volkova V, Sohrabi Y, Havelková H, Svobodová M, Demant P, Lipoldová M. Novel Loci Controlling Parasite Load in Organs of Mice Infected With Leishmania major, Their Interactions and Sex Influence. Front Immunol 2019; 10:1083. [PMID: 31231359 PMCID: PMC6566641 DOI: 10.3389/fimmu.2019.01083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 04/29/2019] [Indexed: 12/24/2022] Open
Abstract
Leishmaniasis is a serious health problem in many countries, and continues expanding to new geographic areas including Europe and USA. This disease, caused by parasites of Leishmania spp. and transmitted by phlebotomine sand flies, causes up to 1.3 million new cases each year and despite efforts toward its functional dissection and treatment it causes 20–50 thousands deaths annually. Dependence of susceptibility to leishmaniasis on sex and host's genes was observed in humans and in mouse models. Several laboratories defined in mice a number of Lmr (Leishmania major response) genetic loci that control functional and pathological components of the response to and outcome of L. major infection. However, the development of its most aggressive form, visceral leishmaniasis, which is lethal if untreated, is not yet understood. Visceral leishmaniasis is caused by infection and inflammation of internal organs. Therefore, we analyzed the genetics of parasite load, spread to internal organs, and ensuing visceral pathology. Using a new PCR-based method of quantification of parasites in tissues we describe a network-like set of interacting genetic loci that control parasite load in different organs. Quantification of Leishmania parasites in lymph nodes, spleen and liver from infected F2 hybrids between BALB/c and recombinant congenic strains CcS-9 and CcS-16 allowed us to map two novel parasite load controlling Leishmania major response loci, Lmr24 and Lmr27. We also detected parasite-controlling role of the previously described loci Lmr4, Lmr11, Lmr13, Lmr14, Lmr15, and Lmr25, and describe 8 genetic interactions between them. Lmr14, Lmr15, Lmr25, and Lmr27 controlled parasite load in liver and lymph nodes. In addition, Leishmania burden in lymph nodes but not liver was influenced by Lmr4 and Lmr24. In spleen, parasite load was controlled by Lmr11 and Lmr13. We detected a strong effect of sex on some of these genes. We also mapped additional genes controlling splenomegaly and hepatomegaly. This resulted in a systematized insight into genetic control of spread and load of Leishmania parasites and visceral pathology in the mammalian organism.
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Affiliation(s)
- Tatyana Kobets
- Laboratory of Molecular and Cellular Immunology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czechia
| | - Marie Čepičková
- Laboratory of Molecular and Cellular Immunology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czechia
| | - Valeriya Volkova
- Laboratory of Molecular and Cellular Immunology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czechia
| | - Yahya Sohrabi
- Laboratory of Molecular and Cellular Immunology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czechia
| | - Helena Havelková
- Laboratory of Molecular and Cellular Immunology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czechia
| | | | - Peter Demant
- Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
| | - Marie Lipoldová
- Laboratory of Molecular and Cellular Immunology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czechia
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Abuzerr S, Nasseri S, Yunesian M, Hadi M, Mahvi AH, Nabizadeh R, Mustafa AA. Prevalence of diarrheal illness and healthcare-seeking behavior by age-group and sex among the population of Gaza strip: a community-based cross-sectional study. BMC Public Health 2019; 19:704. [PMID: 31174512 PMCID: PMC6555956 DOI: 10.1186/s12889-019-7070-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 05/29/2019] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND In the Gaza strip, diarrhea is one of main reasons for children visiting primary healthcare centers. Hence, we investigate predictors of the diarrheal illness and health care-seeking behavior among different age groups. METHODS This community-based cross-sectional survey was conducted from August 2017 to June 2018 among 1857 households. A pretested structured questionnaire included information about socio-demographic, sanitation, hygiene, source of water, diarrheal illness, and seeking healthcare in households was administered to head of household. To achieve representativeness for the five Gaza's governorates, a cluster random sampling was applied. RESULTS Of the 1857 household's heads, 421 (22.7%) reported an episode of diarrhea during the 48 h preceding the interview resulting an overall prevalence rate of 3.8 per 100 individuals. The prevalence of diarrhea was statistical significant greater in males (5.4/100) compared to females (1.3/100) in all age groups (p < 0.05). Socio-demographic, economic, water, sanitation, and hygiene factors were predictors of the diarrheal illness and seeking of non-professional healthcare for diarrhea illness treatment among. A transition behavior from professional to non-professional and vice versa in seeking healthcare in each diarrheal episode was found. CONCLUSIONS We recommend improving the status of water, sanitation, and hygiene in the Gaza strip's households to reduce diarrhea among the population of Gaza strip. Community sensitization about the importance of seeking care at primary health centers because treatment of children is available for free or in low costs.
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Affiliation(s)
- Samer Abuzerr
- Department of Environmental Health Engineering, School of Public Health, International Campus, Tehran University of Medical Sciences, Tehran, Iran
| | - Simin Nasseri
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Masud Yunesian
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Department of Research Methodology and Data Analysis, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Hadi
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Hossein Mahvi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Ramin Nabizadeh
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ayman Abu Mustafa
- Department of Research, Directorate General of Human Resources Development, Ministry of Health, Gaza Strip, Palestine
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Sanftenberg L, Kramer M, Esser S, Schelling J. Insights into needs of business travelers to China from calls to a medical assistance provider. Heliyon 2019; 5:e01237. [PMID: 30815606 PMCID: PMC6378333 DOI: 10.1016/j.heliyon.2019.e01237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 01/24/2019] [Accepted: 02/11/2019] [Indexed: 11/24/2022] Open
Abstract
Background Although 17.5% of German travelers were business travelers in the years 2011–2013, little is known about their pathologies. Recent publications indicate that infections are the primary health issue in general travelers. Our aim was to investigate whether business travelers from Germany to China also primarily suffer from infections. Methods From 2011 to 2013, 587 calls for service of German business travelers to China were collected by a medical assistance provider. 482 of these calls were evaluated regarding demographics, reported diseases and conditions and the type of service provided by the medical assistance company. Results The most common reasons for calls for service were “factors influencing health status and contact with health service” (18.8%), “injury and poisoning” (16.0%) as well as “symptoms, signs, and ill-defined conditions” (13.7%). Most patients asked for “medical advice” (37.8%), referral to “outpatient care” (25.1%) or “inpatient care” (16.6%). “Evacuation and/or repatriation” was required mainly due to “injury and poisoning” (n = 12), “diseases of the circulatory system” (n = 5) or “mental disorders” (n = 3). Conclusion German business travelers to China are seeking primarily administrative support from a medical assistance provider and are mostly affected by non-infectious diseases. Pre-travel preparation of such travelers need to place more emphasis on non-communicable health risks and prevention.
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Affiliation(s)
- Linda Sanftenberg
- Institut für Allgemeinmedizin, Klinikum der Universität München, Germany
| | - Michaela Kramer
- Institut für Allgemeinmedizin, Klinikum der Universität München, Germany
| | | | - Jörg Schelling
- Institut für Allgemeinmedizin, Klinikum der Universität München, Germany
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Mathiba RM, Mathivha LR, Nethathe GD. Artesunate compared with quinine for the treatment of severe malaria in adult patients managed in an intensive care unit: A retrospective observational study. SOUTHERN AFRICAN JOURNAL OF CRITICAL CARE 2019; 35:10.7196/SAJCC.2019.v35i1.345. [PMID: 36959814 PMCID: PMC10029740 DOI: 10.7196/sajcc.2019.v35i1.345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2018] [Indexed: 11/08/2022] Open
Abstract
Background There are limited South African data on the outcomes of patients with severe malaria treated with quinine compared with those treated with artesunate in the intensive care unit (ICU). Objectives To compare the outcomes of adult patients treated with artesunate against those treated with quinine in the ICU. Primary outcome variables are length of stay (LOS) in the ICU and mortality. Secondary outcomes include the incidence of hypoglycaemic episodes and neurological outcomes. Methods This was a retrospective cohort study of patients with severe malaria treated at a multidisciplinary ICU with artesunate or quinine from 1 January 2008 to 31 December 2012. Results Of the 92 patients included in the study, 63 (69.2%) were male. The mean age in the quinine and artesunate groups was 36.2 years and 40.5 years, respectively (p=0.071). Most (98.6%) of the patients with a positive travel history had visited a malaria-endemic region. Of the 53 patients tested for HIV infection, 71.7% tested positive (p=0.520). The average CD4+ cell count of HIV-positive patients treated with quinine was 200 cells/µL compared with 217.17 cells/µL for those treated with artesunate (p=0.875). The mean APACHE II score at admission was 20.85 and 19.62 in the quinine group and artesunate group, respectively (p=0.380). The median LOS was 5 days (range 1 - 27). Mortality was 15.4% in the quinine group and 7.7% in the artesunate group (p=0.246). Conclusion A statistically insignificant mortality difference was observed in outcomes of the two treatment groups in this retrospective, single-centre cohort study. Contributions of the study Intravenous artesunate is currently the preferred treatment in the management of patients with severe malaria. However, there are limited local data on the outcomes of artesunate v. quinine therapy for the management of severe malaria in highly monitored clinical environments in non-endemic regions of South Africa.We describe clinical characteristics, management and outcomes of patients with severe malaria treated with quinine and those treated with artesunate in the ICU in a non-endemic region.
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Affiliation(s)
- R M Mathiba
- Department of Internal Medicine, Chris Hani Baragwanath Academic Hospital, Johannesburg, South Africa
| | - L R Mathivha
- Department of Intensive Care, Chris Hani Baragwanath Academic Hospital, Johannesburg, South Africa
- Division of Critical Care, School of Clinical Medicine, University of the Witwatersrand, Johannesburg, South Africa
| | - G D Nethathe
- Division of Critical Care, School of Clinical Medicine, University of the Witwatersrand, Johannesburg, South Africa
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Abstract
Respiratory tract infections (RTIs) are a common health problem of international travelers. Travelers may be at increased risk of RTIs due to travel itself (mingling and close quarters in airports, airplanes, cruise ships, and hotels), and due to unique exposure at travel destinations. The clinical spectrum of RTIs in travelers is broad and includes upper RTIs, pharyngitis, otitis, laryngitis, bronchitis, and pneumonia. Most travelers who acquire an RTI only develop mild disease, and only a minority seek medical attention. All travelers should be up to date on any indicated vaccines based on age and medical condition that prevent RTIs, including influenza, measles, pneumococcal diseases, Haemophilus influenzae b, Neisseria meningitidis, diphtheria, and pertussis. Respiratory tract infections (RTIs) are among the most common illnesses reported by travelers. Most RTIs are viral, involve the upper respiratory tract, and do not require specific diagnosis or treatment. Influenza is often considered the most important travel-related infection. Travelers play an integral role in the yearly and global spread of influenza. Lower RTIs, including pneumonia, often require antimicrobial therapy. High-risk groups such as infants, small children, the elderly, and subjects with chronic tracheobronchial or pulmonary disease are at increased risk of developing severe clinical consequences should infection occur. All international travelers should be immunized for seasonal influenza unless otherwise contraindicated, and travelers should be instructed in hand hygiene and sneeze and cough hygiene. All travelers should be up to date on any indicated vaccines that prevent RTIs, including measles, pneumococcal diseases, Haemophilus influenzae b (Hib), meningococcal disease, diphtheria, and pertussis. Travelers may be at increased risk of geographically restricted RTIs, and clinicians should be familiar with the major manifestations of these illnesses.
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Bastaki H, Marston L, Cassell J, Rait G. Imported malaria in the UK, 2005 to 2016: Estimates from primary care electronic health records. PLoS One 2018; 13:e0210040. [PMID: 30596782 PMCID: PMC6312224 DOI: 10.1371/journal.pone.0210040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 12/14/2018] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To investigate trends in the incidence of imported malaria in the UK between 2005 and 2016. DESIGN Analysis of longitudinal electronic health records (EHRs) in The Health Improvement Network (THIN) primary care database. SETTING UK primary care. PARTICIPANTS In total, we examined 12,349,003 individuals aged 0 to 99 years. OUTCOME MEASURE The rate of malaria recordings in THIN was calculated per year between 2005 and 2016. Rate ratios exploring differences by age, sex, location of general practice, socioeconomic status and ethnicity were estimated using multivariable Poisson regression. RESULTS A total of 1,474 individuals with a first diagnosis of malaria were identified in THIN between 2005 and 2016. The incidence of recorded malaria followed a decreasing trend dropping from a rate of 3.33 in 2005 to 1.36 cases per 100,000 person years at risk in 2016. Multivariable Poisson regression showed that adults of working age (20 to 69 years), men, those registered with a general practice in London, higher social deprivation and non-white ethnicity were associated with higher rates of malaria recordings. CONCLUSION There has been a decrease in the number of malaria recordings in UK primary care over the past decade. This decrease exceeds the rate of decline reported in national surveillance data; however there are similar associations with age, sex and deprivation. Improved geographic information on the distribution of cases and the potential for automation of case identification suggests that EHRs could provide a complementary role for investigating malaria trends over time.
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Affiliation(s)
- Hamad Bastaki
- Research Department of Primary Care and Population Health, University College London, London, United Kingdom
| | - Louise Marston
- Research Department of Primary Care and Population Health, University College London, London, United Kingdom
| | - Jackie Cassell
- Division of Primary Care and Public Health, Brighton and Sussex Medical School, University of Brighton, Brighton, United Kingdom
| | - Greta Rait
- Research Department of Primary Care and Population Health, University College London, London, United Kingdom
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Badahdah AM, Alfelali M, Alqahtani AS, Alsharif S, Barasheed O, Rashid H. Mandatory meningococcal vaccine, and other recommended immunisations: Uptake, barriers, and facilitators among health care workers and trainees at Hajj. World J Clin Cases 2018; 6:1128-1135. [PMID: 30613671 PMCID: PMC6306626 DOI: 10.12998/wjcc.v6.i16.1128] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 11/21/2018] [Accepted: 11/24/2018] [Indexed: 02/05/2023] Open
Abstract
AIM To evaluate the uptake of a mandatory meningococcal, a highly recommended influenza, and an optional pneumococcal vaccine, and to explore the key factors affecting vaccination rate among health care workers (HCWs) during the Hajj.
METHODS An anonymous cross-sectional online survey was distributed among HCWs and trainees who worked or volunteered at the Hajj 2015-2017 through their line managers, or by visiting their hospitals and healthcare centres in Makkah and Mina. Overseas HCWs who accompanied the pilgrims or those who work in foreign Hajj medical missions were excluded. Pearson’s χ2 test was used to compare categorical variables and odds ratio (OR) was calculated by “risk estimate” statistics along with 95% confidence interval (95%CI).
RESULTS A total of 138 respondents aged 20 to 59 (median 25.6) years with a male to female ratio of 2.5:1 participated in the survey. Only 11.6% (16/138) participants reported receiving all three vaccines, 15.2% (21/138) did not receive any vaccine, 76.1% (105/138) received meningococcal, 68.1% (94/138) influenza and 13.8% (19/138) pneumococcal vaccine. Females were more likely to receive a vaccine than males (OR 3.6, 95%CI: 1.0-12.7, P < 0.05). Willingness to follow health authority’s recommendation was the main reason for receipt of vaccine (78.8%) while believing that they were up-to-date with vaccination (39.8%) was the prime reason for non-receipt.
CONCLUSION Some HCWs at Hajj miss out the compulsory and highly recommended vaccines; lack of awareness is a key barrier and authority’s advice is an important motivator. Health education followed by stringent measures may be required to improve their vaccination rate.
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Affiliation(s)
- Al-Mamoon Badahdah
- Department of Family and Community Medicine, Faculty of Medicine in Rabigh, King Abdulaziz University, Jeddah 22252, Saudi Arabia
- Harunor Rashid, National Centre for Immunisation Research and Surveillance, the Children’s Hospital at Westmead, Westmead, NSW 2145, Australia
- Harunor Rashid, the Discipline of Child and Adolescent Health, the Faculty of Medicine and Health, the University of Sydney, Westmead, NSW 2145, Australia
| | - Mohammad Alfelali
- Department of Family and Community Medicine, Faculty of Medicine in Rabigh, King Abdulaziz University, Jeddah 22252, Saudi Arabia
- Harunor Rashid, National Centre for Immunisation Research and Surveillance, the Children’s Hospital at Westmead, Westmead, NSW 2145, Australia
- Harunor Rashid, the Discipline of Child and Adolescent Health, the Faculty of Medicine and Health, the University of Sydney, Westmead, NSW 2145, Australia
| | | | - Saeed Alsharif
- Command and Control Centre of Infectious Diseases of Public Health Department of Ministry of Health, Taif 26521, Saudi Arabia
| | - Osamah Barasheed
- Harunor Rashid, National Centre for Immunisation Research and Surveillance, the Children’s Hospital at Westmead, Westmead, NSW 2145, Australia
- Harunor Rashid, the Discipline of Child and Adolescent Health, the Faculty of Medicine and Health, the University of Sydney, Westmead, NSW 2145, Australia
- the Executive Administration of Research and Innovation at King Abdullah Medical City in Holy Capital, Makkah 24246, Saudi Arabia
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Hasler T, Fehr J, Held U, Schlagenhauf P. Use of repellents by travellers: A randomised, quantitative analysis of applied dosage and an evaluation of knowledge, Attitudes and Practices (KAP). Travel Med Infect Dis 2018; 28:27-33. [PMID: 30578847 DOI: 10.1016/j.tmaid.2018.12.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 11/14/2018] [Accepted: 12/18/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND Prevention of arthropod-borne infections hinges on bite prevention. We aimed to investigate travellers' use of repellents. METHODS We measured the amount of applied repellent with a spray containing 30% DEET and 20% Icaridin versus a lotion with 20% Icaridin alone. We calculated the concentration of active ingredient reached on the skin and evaluated formulation acceptability. The travellers completed a questionnaire evaluating Knowledge, Attitudes and Practice (KAP) to anti-vectorial protective measures (AVPM). RESULTS Some 200 volunteers travelling to mosquito borne infection endemic areas were recruited. The mean concentration of active substance achieved on the skin of the left arm was 0.52 mg/cm2 of DEET/Icaridin spray versus 0.21 mg/cm2 of Icaridin lotion. These levels are below the recommended protective dose (1 mg/cm2) for each formulation. Women were significantly more likely to apply a higher, protective dose of repellent. Travellers to Africa, women and older participants showed higher projected adherence to AVPM. CONCLUSIONS Only 2.5% of recruited travellers applied the recommended protective dose of repellent. Women and older travellers are the most adherent users of repellents. The pre-travel health consultation should provide more information on the application quantity and correct use of repellents.
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Affiliation(s)
- Thomas Hasler
- University of Zurich Centre for Travel Medicine, WHO Collaborating for Travellers' Health, Department of Public Health, Institute for Epidemiology, Biostatistics and Prevention, Hirschengraben 84, 8001, Zurich, Switzerland
| | - Jan Fehr
- University of Zurich Centre for Travel Medicine, WHO Collaborating for Travellers' Health, Department of Public Health, Institute for Epidemiology, Biostatistics and Prevention, Hirschengraben 84, 8001, Zurich, Switzerland; Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Ulrike Held
- Department of Biostatistics, Institute for Epidemiology, Biostatistics and Prevention, University of Zurich, Zurich, Switzerland
| | - Patricia Schlagenhauf
- University of Zurich Centre for Travel Medicine, WHO Collaborating for Travellers' Health, Department of Public Health, Institute for Epidemiology, Biostatistics and Prevention, Hirschengraben 84, 8001, Zurich, Switzerland.
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Prosser C, Meyer W, Ellis J, Lee R. Resistance screening and trend analysis of imported falciparum malaria in NSW, Australia (2010 to 2016). PLoS One 2018; 13:e0197369. [PMID: 29813085 PMCID: PMC5973583 DOI: 10.1371/journal.pone.0197369] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 05/01/2018] [Indexed: 12/12/2022] Open
Abstract
Background The World Health Organization currently recommends artemisinin (along with a partner drug) as the global frontline treatment for Plasmodium falciparum malaria. Artemisinin resistant P. falciparum are now found throughout the greater Mekong subregion of South East Asia. Several polymorphisms in the parasite’s kelch gene have been demonstrated to confer artemisinin resistance. While genotypes within the greater Mekong subregion are thoroughly examined in the literature, P. falciparum populations within several areas that do not (yet) have endemic resistance are underrepresented. Results This investigation characterised the Pfkelch13 propeller domains from 153 blood samples of 140 imported cases of P. falciparum malaria in New South Wales from 2010 to 2016. A low level of propeller domain diversity was observed, including the C580Y coding mutation most strongly associated with artemisinin resistance in South East Asia. The resistance genotype was found in a sample originating in Papua New Guinea, where this mutation, or artemisinin treatment failure, have not been previously reported. Sequencing a panel of geographically informative polymorphisms within the organellar genomes identified the C580Y parasite as having Oceanic origins. Patient data analysis revealed that New South Wales, Australia, P. falciparum malaria cases often originated from regions with limited drug resistance screening. Conclusions The C580Y finding from outside of the greater Mekong subregion supports the consensus to upscale molecular surveillance of artemisinin resistance outside of South East Asia. The genetic screening results identify a risk of importing resistant falciparum malaria to Australia, supporting an ongoing surveillance protocol to pre-empt treatment failure and contribute to global data gathering.
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Affiliation(s)
- Christiane Prosser
- Molecular Mycology Research Laboratory, Centre for Infectious Diseases and Microbiology, Westmead Clinical School, Faculty of Medicine and Health, Marie Bashir Institute for Infectious Diseases and Biosecurity, The University of Sydney, Sydney, New South Wales, Australia
- School of Life Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
- Westmead Institute for Medical Research, Westmead, New South Wales, Australia
- Centre for Infectious Diseases and Microbiology Laboratory Services, ICPMR, Westmead Hospital, Westmead, New South Wales, Australia
| | - Wieland Meyer
- Molecular Mycology Research Laboratory, Centre for Infectious Diseases and Microbiology, Westmead Clinical School, Faculty of Medicine and Health, Marie Bashir Institute for Infectious Diseases and Biosecurity, The University of Sydney, Sydney, New South Wales, Australia
- Westmead Institute for Medical Research, Westmead, New South Wales, Australia
| | - John Ellis
- School of Life Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Rogan Lee
- Centre for Infectious Diseases and Microbiology Laboratory Services, ICPMR, Westmead Hospital, Westmead, New South Wales, Australia
- * E-mail:
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Svensson P, Sundbeck M, Persson KI, Stafström M, Östergren PO, Mannheimer L, Agardh A. A meta-analysis and systematic literature review of factors associated with sexual risk-taking during international travel. Travel Med Infect Dis 2018; 24:65-88. [PMID: 29567294 DOI: 10.1016/j.tmaid.2018.03.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 02/23/2018] [Accepted: 03/12/2018] [Indexed: 11/27/2022]
Abstract
BACKGROUND International travel facilitates global spread of sexually transmitted infections (STI). Travellers could contribute to onward transmission of pathogens rarely encountered at home and export new strains to the destination. The aim was to systematically examine evidence regarding determinants of travel-related sexual risk-taking and identify knowledge gaps and areas for targeted interventions. METHOD Articles published in peer-reviewed journals from 2000 to 2017 were screened in 6 databases and assessed for relevance against criteria. Data was extracted for factors associated with travel-related STI or proxies. Meta-analyses estimated pooled prevalence of casual sex and non-condom use. Adjusted odds ratios of predictors were pooled to generate a combined estimate. RESULT Forty-nine articles qualified for inclusion. A heterogeneity test indicated variation across studies. The pooled prevalence of casual travel sex was 35% and prevalence of non-condom use 17%. Expectations of casual sex strongly predicted sex with a new partner when travelling abroad. Planning to have sex indicated condom use. CONCLUSION The studies largely represented sub-groups of risk-taking populations from a European context, indicating substantial knowledge gaps. Studies investigating migrants travelling to visit friends and relatives, older travellers, and female travelers are needed. Post-travel harm reduction activities may serve as a focus for future interventions.
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Affiliation(s)
- Pia Svensson
- Social Medicine and Global Health, Department of Clinical Sciences, Lund University, Malmö, Sweden.
| | - Mats Sundbeck
- Social Medicine and Global Health, Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Kristina Ingemarsdotter Persson
- Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden; Public Health Agency, Health and Sexuality, Stockholm, Sweden
| | - Martin Stafström
- Social Medicine and Global Health, Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Per-Olof Östergren
- Social Medicine and Global Health, Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Louise Mannheimer
- Department of Learning, Informatics, Management and Ethics, Karolinska Institutet, Stockholm, Sweden; Public Health Agency, Health and Sexuality, Stockholm, Sweden
| | - Anette Agardh
- Social Medicine and Global Health, Department of Clinical Sciences, Lund University, Malmö, Sweden
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Sex- and age patterns in incidence of infectious diseases in Germany: analyses of surveillance records over a 13-year period (2001-2013). Epidemiol Infect 2018; 146:372-378. [PMID: 29357958 DOI: 10.1017/s0950268817002771] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Sex differences in the incidence of infections may indicate different risk factors and behaviour but have not been analysed across pathogens. Based on 3.96 million records of 33 pathogens in Germany, notified from 2001 to 2013, we applied Poisson regression to generate age-standardised incidence rate ratios and assessed their distribution across age and sex. The following trends became apparent: (a) pathogens with male incidence preponderance at infant and child age (meningococcal disease (incidence rate ratio (IRR) = 1.19, 95% CI 1.03-1.38, age = 0-4); influenza (IRR = 1.09, 95% CI 1.06-1.13, age = 0-4)), (b) pathogens with sex-switch in incidence preponderance at puberty (e.g. norovirus (IRR = 1.10, 95% CI 1.02-1.19 in age = 5-14, IRR = 0.96, 95% CI 0.93-0.99, age ⩾ 60), (c) pathogens with general male incidence preponderance (bacterial/parasitic infections with campylobacter, Yersinia and Giardia), (d) pathogens with male incidence preponderance at juvenile and adult age (sexually transmitted or vector-borne infections (combined-IRR = 2.53, 95% CI 2.36-2.71, age = 15-59), (e) pathogens with male preponderance at older age (tick-borne encephalitis - IRR = 2.75, 95% CI 1.21-6.24, listeriosis - IRR = 2.06, 95% CI 1.38-3.06, age ⩾ 60). Risk factor concepts only partly serve to interpret similarities of grouped infections, i.e. transmission-related explanations and sex-specific exposures not consistently explain the pattern of food-borne infections (b). Sex-specific differences in infectious disease incidence are well acknowledged regarding the sexually transmitted diseases. This has led to designing gender-specific prevention strategies. Our data suggest that for infections with other transmission routes, gender-specific approaches can also be of benefit and importance.
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Dam Larsen F, Jespersen S, Wejse C, Petersen E, Larsen CS. One-sixth of inpatients in a Danish infectious disease ward have imported diseases: A cross-sectional analysis. Travel Med Infect Dis 2017; 20:43-48. [PMID: 29066404 DOI: 10.1016/j.tmaid.2017.10.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Revised: 10/15/2017] [Accepted: 10/20/2017] [Indexed: 11/28/2022]
Abstract
BACKGROUND The aim of the study was to describe travel demographics and disease patterns of patients hospitalized with travel-related diseases, and assess risk factors to improve pre-travel information and post-travel diagnostics and treatment. METHODS The study included all patients hospitalized with travel-related diseases in 2015 at a Danish infectious diseases ward. Patient data was extracted from the in-patient hospital registry. was analyzed regarding diagnoses, destination, purpose of travel and pre-travel information. RESULTS 240 patients were hospitalized with a total of 289 travel-related diseases, accounting for 16.6% (240/1450) of all admissions. Febrile illnesses were the most common (39.5%, 114/289) followed by respiratory (19.7%, 57/289) and gastrointestinal diagnoses (19.0%, 55/289). Most of the diseases were acquired in Sub-Saharan Africa (35.6%, 103/289) followed by South East Asia (27.0%, 78/289), and 60.0% (144/240) of the patients were tourists. One-third (36.3%, 81/223) of the non-migrants had received pre-travel information. The lowest rate was seen in people visiting friends and relatives (18.2%, 6/32). CONCLUSION Travel-related diseases are common among patients admitted to this Danish infectious disease ward. Malaria is the most common disease among both travelers and immigrants. In approximately one third of all the patients in our study etiology was unknown.
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Affiliation(s)
- Fredrikke Dam Larsen
- Department of Infectious Diseases, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200 Aarhus N, Denmark.
| | - Sanne Jespersen
- Department of Infectious Diseases, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200 Aarhus N, Denmark.
| | - Christian Wejse
- Department of Infectious Diseases, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200 Aarhus N, Denmark; GloHAU, Department of Public Health, Section of Global Health, Aarhus University, Bartholins Allé 2-Building 1260, 8000 Aarhus C, Denmark.
| | - Eskild Petersen
- Department of Clinical Medicine, Faculty of Health Sciences, Aarhus University, Denmark; Department of Infectious Diseases, The Royal Hospital, Muscat, Oman.
| | - Carsten Schade Larsen
- Department of Infectious Diseases, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200 Aarhus N, Denmark.
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Short EE, Caminade C, Thomas BN. Climate Change Contribution to the Emergence or Re-Emergence of Parasitic Diseases. Infect Dis (Lond) 2017; 10:1178633617732296. [PMID: 29317829 PMCID: PMC5755797 DOI: 10.1177/1178633617732296] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Accepted: 08/20/2017] [Indexed: 01/07/2023] Open
Abstract
The connection between our environment and parasitic diseases may not always be straightforward, but it exists nonetheless. This article highlights how climate as a component of our environment, or more specifically climate change, has the capability to drive parasitic disease incidence and prevalence worldwide. There are both direct and indirect implications of climate change on the scope and distribution of parasitic organisms and their associated vectors and host species. We aim to encompass a large body of literature to demonstrate how a changing climate will perpetuate, or perhaps exacerbate, public health issues and economic stagnation due to parasitic diseases. The diseases examined include those caused by ingested protozoa and soil helminths, malaria, lymphatic filariasis, Chagas disease, human African trypanosomiasis, leishmaniasis, babesiosis, schistosomiasis, and echinococcus, as well as parasites affecting livestock. It is our goal to impress on the scientific community the magnitude a changing climate can have on public health in relation to parasitic disease burden. Once impending climate changes are now upon us, and as we see these events unfold, it is critical to create management plans that will protect the health and quality of life of the people living in the communities that will be significantly affected.
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Affiliation(s)
- Erica E Short
- Environmental Science Program, Thomas H. Gosnell School of Life Sciences, Rochester Institute of Technology, Rochester, NY, USA
| | - Cyril Caminade
- Department of Epidemiology and Population Health, Institute of Infection and Global Health, University of Liverpool, Liverpool, UK.,NIHR Health Protection Research Unit in Emerging and Zoonotic Infections, Liverpool, UK
| | - Bolaji N Thomas
- Department of Biomedical Sciences, College of Health Sciences and Technology, Rochester Institute of Technology, Rochester, NY, USA
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Rabinowicz S, Schwartz E. Morbidity among Israeli paediatric travellers. J Travel Med 2017; 24:4191320. [PMID: 29088478 DOI: 10.1093/jtm/tax062] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Accepted: 08/15/2017] [Indexed: 11/15/2022]
Abstract
BACKGROUND International travel, particularly to developing countries, is becoming increasingly common among the Israeli population, including an increase in the number of travelling children. Since children are a distinct travellers' population, data about their post-travel morbidity are needed. METHODS A retrospective study which examined all children (0-19 years old) who presented to our centre after international travel from 1999 to 2015. RESULTS About 314 children were seen. The mean age was 10 years (SD ± 5.8). Most of the patients (80.6%) were tourists, and the rest were expatriates. The main destinations visited were South-Asia (46.5%), Sub-Saharan Africa (33.4%), Latin-America (7%) and Europe (6.4%). Overall, the most common diagnoses were gastrointestinal (GI) (mainly chronic) disorders (30.6%), followed by febrile diseases (26.4%), among which 18.1% of patients were diagnosed with dengue fever and 12% with malaria. Dermatologic conditions accounted for 25.2%. Additional diagnoses were schistosomiasis (6.4%) and neuropsychiatric symptoms (2.2%). A substantial part, 10.8%, had eosinophilia, either symptomatic or asymptomatic. Travellers to Asia, compared to travellers to Africa, presented more commonly with GI illness (OR 2.02, 95% confidence interval 1.13-3.61), and dermatologic conditions (OR 1.94, 95% confidence interval 1.05-3.61). Morbidity was associated with a variety of transmission modes, such as food-borne illnesses (30.9%), bite and sting wounds (10.2%), mosquito-borne infections (8%), freshwater contact (6.7%) and tick-borne infections (2.2%). CONCLUSION The main conditions seen in paediatric returning travellers were GI, febrile and dermatologic illnesses, some may be rare in their country of origin. Targeting care for the suspected pathogens based on updated knowledge of epidemiology and thorough travel history is essential.
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Affiliation(s)
- Shira Rabinowicz
- Department of Pediatrics A, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Ramat Gan, Tel Hashomer 5262000, Israel.,Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel
| | - Eli Schwartz
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel.,The Center for Geographic Medicine and Tropical Diseases, Sheba Medical Center, Ramat Gan, Tel Hashomer 5262000, Israel
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Torresi J, Steffen R. Redefining priorities towards graded travel-related infectious disease research. J Travel Med 2017; 24:4359791. [PMID: 29088486 DOI: 10.1093/jtm/tax064] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Indexed: 01/01/2023]
Abstract
Our knowledge of the health problems and infections encountered by international travellers has evolved considerably in the past decades. The growth of global networks such as the GeoSentinel Surveillance network, TropNet Europe, EuroTravNet and networks based in North America have provided valuable information on the frequency of a wide array of travel-related diseases and accidents, including details on the destination of travel and trends over time. The information gained from these network studies has provided important data for the practice of travel medicine and in some instances for the development of practice guidelines. However, network data due to a lack of denominators usually cannot serve as a basis for a GRADE approach to guideline development. Although epidemiological network studies will continue to serve an important role in travel medicine we encourage an additional strong focus towards translational scientific research questions and towards the broader use of novel techniques to obtain more accurate epidemiological analyses to address the many unanswered questions in our field.
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Affiliation(s)
- Joseph Torresi
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Robert Steffen
- Epidemiology, Biostatistics and Prevention Institute, Division of Communicable Diseases, WHO Collaborating Centre for Travellers' Health, University of Zurich, Zurich, Switzerland.,Division of Epidemiology, Human Genetics and Environmental Sciences, The University of Texas School of Public Health, Houston, TX, USA
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42
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Khuu D, Eberhard ML, Bristow BN, Javanbakht M, Ash LR, Shafir SC, Sorvillo FJ. Malaria-Related Hospitalizations in the United States, 2000-2014. Am J Trop Med Hyg 2017; 97:213-221. [PMID: 28719326 DOI: 10.4269/ajtmh.17-0101] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Few data are available on the burden of malaria hospitalization in the United States. Study of malaria using hospital-based data can better define the impact of malaria and help inform prevention efforts. U.S. malaria cases identified from hospitalization discharge records in the 2000-2014 Nationwide Inpatient Sample were examined. Frequencies and population rates were reported by demographics, infecting species, clinical, financial, institutional, geographic, and seasonal characteristics, and disparities were identified. Time trends in malaria cases were assessed using negative binomial regression. From 2000 to 2014, there were an estimated 22,029 malaria-related hospitalizations (4.88 per 1 million population) in the United States, including 182 in-hospital deaths and 4,823 severe malaria cases. The rate of malaria-related hospitalizations did not change significantly over the study period. The largest number of malaria-related hospitalizations occurred in August. Malaria-related hospitalizations occurred disproportionately among patients who were male, black, or 25-44 years of age. Plasmodium falciparum accounted for the majority of malaria-related hospitalizations. On average, malaria patients were hospitalized for 4.36 days with charges of $25,789. Patients with a malaria diagnosis were more often hospitalized in the Middle Atlantic and South Atlantic census divisions, urban teaching, private not-for-profit, and large-bed-size hospitals. Malaria imposes a substantial disease burden in the United States. Enhanced primary and secondary prevention measures, including strategies to increase the use of pretravel consultations and prompt diagnosis and treatment are needed.
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Affiliation(s)
- Diana Khuu
- Research, Epidemiology, and Evaluation Unit, Clinical Services and Research Branch, Substance Abuse Prevention and Control, Los Angeles County Department of Public Health, Alhambra, California.,Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California
| | - Mark L Eberhard
- Parasitic Diseases Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Benjamin N Bristow
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California
| | - Marjan Javanbakht
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California
| | - Lawrence R Ash
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California
| | - Shira C Shafir
- TOMS Shoes, LLC, Los Angeles, California.,Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California
| | - Frank J Sorvillo
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California
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43
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Maher S, Hallahan B, Flaherty G. Itching for a diagnosis - A travel medicine perspective on delusional infestation. Travel Med Infect Dis 2017; 18:70-72. [DOI: 10.1016/j.tmaid.2017.05.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 05/12/2017] [Accepted: 05/19/2017] [Indexed: 12/01/2022]
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Abstract
BACKGROUND Travellers' diarrhea (TD) continues to be the most frequent health problem in travellers with destinations in lower income parts of the world as compared with where they reside, even if that risk has slightly decreased. METHODS A systematic review was published 18 months ago; now PubMed was searched for more recent publications relating to travel, diarrhea, epidemiology, incidence, risk. RESULTS A trend to decreasing incidence rates have been noted in this as compared with the last century, but TD remains frequent. The clinical picture varies from a trivial ailment to severe with subsequent hospitalization. Of great concern are long-term sequelae, particularly post-infectious irritable bowel syndrome. The most important risk factors are the destination and duration of exposure among the environmental factors, whereas the age is the most relevant host factor. CONCLUSIONS Even if improved hygienic conditions in low-income countries often visited by travellers have resulted in slightly diminished incidence rates of TD, this remains a frequent health problem. Visitors to such destinations must be informed about that health risk and it is beneficial to equip them with instructions and a travel kit to enable them to some extent self-manage TD occurring abroad.
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Affiliation(s)
- Robert Steffen
- Epidemiology, Biostatistics and Prevention Institute, World Health Organization Collaborating Centre for Traveller's Health, University of Zurich, Zurich, Switzerland.,Division of Epidemiology Human Genetics & Environmental Sciences, The University of Texas School of Public Health, Houston, TX, USA
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45
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Momper JD, Misel ML, McKay DB. Sex differences in transplantation. Transplant Rev (Orlando) 2017; 31:145-150. [PMID: 28262425 DOI: 10.1016/j.trre.2017.02.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 01/30/2017] [Accepted: 02/13/2017] [Indexed: 01/01/2023]
Abstract
Sex plays a role in the incidence and progression of a wide variety of diseases and conditions related to transplantation. Additionally, a growing body of clinical and experimental evidence suggests that sex can impact the pharmacokinetics and pharmacodynamics of several commonly used immunosuppressive and anti-infective drugs in transplant recipients. A better understanding of these sex differences will facilitate advances in individualizing treatment for patients and improve outcomes of solid organ transplantation. Here, we provide a review of sex-related differences in transplantation and highlight opportunities for future research directions.
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Affiliation(s)
- Jeremiah D Momper
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego/La Jolla, CA
| | - Michael L Misel
- Kidney Transplant/Department of Pharmacy Services, UC San Diego Health System, University of California, San Diego/La Jolla, CA
| | - Dianne B McKay
- Division of Nephrology-Hypertension, School of Medicine, University of California, San Diego/La Jolla, CA.
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46
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Affiliation(s)
- Guy E Thwaites
- From the Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom (G.E.T., N.P.J.D.); Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam (G.E.T.); and the Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand (N.P.J.D.)
| | - Nicholas P J Day
- From the Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom (G.E.T., N.P.J.D.); Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam (G.E.T.); and the Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand (N.P.J.D.)
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47
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Vila J, Oliveira I, Zboromyrska Y, Gascon J. [Traveller's diarrhoea]. Enferm Infecc Microbiol Clin 2016; 34:579-584. [PMID: 27234415 DOI: 10.1016/j.eimc.2016.04.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 04/14/2016] [Indexed: 01/07/2023]
Abstract
Traveller's diarrhoea (TD) is acquired primarily through ingestion of food and drinks contaminated with pathogens that cause diarrhoea. They can be bacteria, protozoa, helminths, and viruses. Globally, the most common causes of TD are two pathotypes of Escherichia coli (enterotoxigenic and enteroaggregative) and Campylobacter, although there are significant variations by geographic area visited. Most TD occurs in individuals traveling to low-middle income countries. The type of travel, length of stay, traveller's age, and the presence of certain underlying conditions are important risk factors to consider for the acquisition of TD. While TD is usually a mild and self-limiting disease, half of travellers with TD experience some limitation of activities during their trip, while up to 10% will experience persistent diarrhoea or other complications. The purpose of this article is to provide an updated microbiological, epidemiological, and clinical profile of traveller's diarrhoea, including known risk factors, as well as to make recommendations on the prevention and treatment of TD.
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Affiliation(s)
- Jordi Vila
- ISGlobal, Barcelona Centre for International Health Research (CRESIB), Hospital Clínic, Universitat de Barcelona, Barcelona, España; Servicio de Microbiología, Hospital Clínic, Barcelona, España.
| | - Ines Oliveira
- ISGlobal, Barcelona Centre for International Health Research (CRESIB), Hospital Clínic, Universitat de Barcelona, Barcelona, España; Servicio de Salud Internacional, Hospital Clínic, Barcelona, España
| | - Yuliya Zboromyrska
- ISGlobal, Barcelona Centre for International Health Research (CRESIB), Hospital Clínic, Universitat de Barcelona, Barcelona, España; Servicio de Microbiología, Hospital Clínic, Barcelona, España
| | - Joaquim Gascon
- ISGlobal, Barcelona Centre for International Health Research (CRESIB), Hospital Clínic, Universitat de Barcelona, Barcelona, España; Servicio de Salud Internacional, Hospital Clínic, Barcelona, España
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48
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Siikamäki H, Kivelä P, Fotopoulos M, Kantele A. A closer look at travellers' infections abroad: Finnish nationwide data with incidences, 2010 to 2012. Travel Med Infect Dis 2016; 15:29-36. [PMID: 27773779 DOI: 10.1016/j.tmaid.2016.10.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 10/08/2016] [Accepted: 10/18/2016] [Indexed: 11/16/2022]
Abstract
BACKGROUND Although infections represent the most common health problem of travellers abroad, data on morbidity and incidences of various infections are scarce. METHOD Data on infections of Finnish travellers during 2010-2012 were retrieved from the database of SOS International, an assistance organization covering 95% of Finns requiring aid abroad. The study included 30,086 cases. For incidence calculation, the data were linked to the numbers of Finns visiting these regions during the same period as recorded by the Official Statistics of Finland. RESULTS The incidence of infections was particularly high in Africa, southern Europe plus the eastern Mediterranean, and Asia plus Oceania. The most frequent diagnoses were acute gastroenteritis (38.0%) and respiratory-tract infections (RTI) (34.5%), followed by infections of the ear (12.6%), skin or subcutaneous tissue (5.1%), urogenital tract (4.2%), eye (3.1%), and systemic febrile infections (2.2%). Vaccine-preventable diseases (VPD) accounted for 0.8% of cases, with varicella as most (49%) and influenza as second-most (27%) common. CONCLUSIONS Incidence of infections was higher in southern than in eastern and western Europe. Gastroenteritis and RTI proved the most frequent diagnoses, whereas systemic febrile infections were uncommon. Despite pre-travel immunizations, VPDs still occurred; pre-travel consultation should cover both varicella and influenza.
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Affiliation(s)
- Heli Siikamäki
- Inflammation Center, Division of Infectious Diseases, University of Helsinki and Helsinki University Hospital, POB 348, FI-00029 HUS, Helsinki, Finland; SOS International, Nitivej 6, DK-2000, Frederiksberg, Denmark.
| | - Pia Kivelä
- Inflammation Center, Division of Infectious Diseases, University of Helsinki and Helsinki University Hospital, POB 348, FI-00029 HUS, Helsinki, Finland.
| | | | - Anu Kantele
- Inflammation Center, Division of Infectious Diseases, University of Helsinki and Helsinki University Hospital, POB 348, FI-00029 HUS, Helsinki, Finland; Karolinska Institute, Department of Medicine/Solna, Unit of Infectious Diseases, SE 17176 Stockholm, Sweden.
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49
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Vilkman K, Pakkanen SH, Lääveri T, Siikamäki H, Kantele A. Travelers' health problems and behavior: prospective study with post-travel follow-up. BMC Infect Dis 2016; 16:328. [PMID: 27412525 PMCID: PMC4944265 DOI: 10.1186/s12879-016-1682-0] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 06/20/2016] [Indexed: 11/17/2022] Open
Abstract
Background The annual number of international tourist arrivals has recently exceeded one billion, yet surprisingly few studies have characterized travelers’ behavior, illness, and risk factors in a prospective setting. Particularly scarce are surveys of data spanning travel, return, and follow-up of the same cohort. This study examines behavior and illness among travelers while abroad, after return home, and at follow-up. Patterns of behavior connected to type of travel and illness are characterized so as to identify risk factors and provide background data for pre-travel advice. Methods Volunteers to this prospective cohort study were recruited at visits to a travel clinic prior to departure. Data on the subjects’ health and behavior were collected by questionnaires before and after journeys and over a three-week follow-up. In addition, the subjects were asked to fill in health diaries while traveling. Results The final study population consisted of 460 subjects, 79 % of whom reported illness during travel or on arrival: 69 % had travelers’ diarrhea (TD), 17 % skin problems, 17 % fever, 12 % vomiting, 8 % respiratory tract infection, 4 % urinary tract infection, 2 % ear infection, 4 % gastrointestinal complaints other than TD or vomiting, and 4 % other symptoms. Of all subjects, 10 % consulted a doctor and 0.7 % were hospitalized; 18 % took antimicrobials, with TD as the most common indication (64 %). Ongoing symptoms were reported by 25 % of all travelers upon return home. During the three-week follow-up (return rate 51 %), 32 % of respondents developed new-onset symptoms, 20 % visited a doctor and 1.7 % were hospitalized. Factors predisposing to health problems were identified by multivariable analysis: certain regions (Southern Asia, South-Eastern Asia, and Eastern Africa), female gender, young age, and long travel duration. Conclusions Despite proper preventive measures like vaccinations, malaria prophylaxis, and travel advice, the majority of our subjects fell ill during or after travel. As the symptoms mostly remained mild, health care services were seldom needed. Typical traveler profiles were identified, thereby providing a tool for pre-travel advice. The finding that one third reported new-onset illness during follow-up attests to the importance of advising clients on potential post-travel health problems already during pre-travel visits. Electronic supplementary material The online version of this article (doi:10.1186/s12879-016-1682-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Katri Vilkman
- Department of Bacteriology and Immunology, University of Helsinki, Haartmaninkatu 3, (P.O. Box 21), 00014, Helsinki, Finland.,Inflammation Center, Clinic of Infectious Diseases, Helsinki University Hospital and University of Helsinki, Aurora Hospital, Nordenskiöldinkatu 20, (P.O. Box 348), Helsinki, Finland
| | - Sari H Pakkanen
- Department of Bacteriology and Immunology, University of Helsinki, Haartmaninkatu 3, (P.O. Box 21), 00014, Helsinki, Finland
| | - Tinja Lääveri
- Inflammation Center, Clinic of Infectious Diseases, Helsinki University Hospital and University of Helsinki, Aurora Hospital, Nordenskiöldinkatu 20, (P.O. Box 348), Helsinki, Finland
| | - Heli Siikamäki
- Inflammation Center, Clinic of Infectious Diseases, Helsinki University Hospital and University of Helsinki, Aurora Hospital, Nordenskiöldinkatu 20, (P.O. Box 348), Helsinki, Finland
| | - Anu Kantele
- Inflammation Center, Clinic of Infectious Diseases, Helsinki University Hospital and University of Helsinki, Aurora Hospital, Nordenskiöldinkatu 20, (P.O. Box 348), Helsinki, Finland. .,Institute of Clinical Medicine, University of Helsinki, Helsinki, Finland. .,Aava Travel Clinic, Medical Centre Aava, Annankatu 32, 00100, Helsinki, Finland. .,Unit of Infectious Diseases, Solna, Karolinska Institutet, SE-171 76, Stockholm, Sweden.
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50
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Boggild AK, Geduld J, Libman M, Yansouni CP, McCarthy AE, Hajek J, Ghesquiere W, Vincelette J, Kuhn S, Freedman DO, Kain KC. Malaria in travellers returning or migrating to Canada: surveillance report from CanTravNet surveillance data, 2004-2014. CMAJ Open 2016; 4:E352-E358. [PMID: 27730099 PMCID: PMC5047843 DOI: 10.9778/cmajo.20150115] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Malaria remains the most common specific cause of fever in returned travellers and can be life-threatening. We examined demographic and travel correlates of malaria among Canadian travellers and immigrants to identify groups for targeted pretravel intervention. METHODS Descriptive data on ill returned Canadian travellers and immigrants presenting to a CanTravNet site between 2004 and 2014 with a diagnosis of malaria were analyzed. Data were collected using the GeoSentinel data platform. This network comprises 63 specialized travel and tropical medicine clinics, including 7 Canadian sites (Vancouver, Calgary, Toronto, Ottawa, Winnipeg and Montréal), that contribute anonymous, delinked, clinician- and questionnaire-based travel surveillance data on all ill travellers examined to a centralized Structure Query Language database. RESULTS During the study period, 20 345 travellers and immigrants were evaluated, and 93% had a travel-related diagnosis. Of these, 437 (2.1%) patients received 456 malaria diagnoses, the most common species being Plasmodium falciparum (n = 282, 61.8%). People travelling to visit friends and relatives were most well-represented (n = 169, 38.7%), followed by business travellers (n = 71, 16.2%). Sub-Saharan Africa was the most common source region, accounting for 341 (74.8%) malaria diagnoses, followed by South Central Asia (n = 55, 12%). Nigeria was the most well-represented source country, accounting for 41 cases (9.0%). India, a high-volume destination for Canadians, accounted for 40 cases (8.8%), 36 of which were caused by Plasmodium vivax. Of 456 malaria diagnoses, 26 (5.7%) were severe. Of 377 nonimmigrant travellers with malaria, 19.9% (n = 75) travelled for less than 2 weeks, and 7.2% (n = 27) travelled for less than 1 week. INTERPRETATION This analysis provides an epidemiologic framework for Canadian practitioners encountering prospective and returned travellers. It confirms the importance of preventive measures and surveillance associated with travel to sub-Saharan Africa and India, particularly by travellers visiting friends or relatives. Short-duration travel confers important malaria risk.
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Affiliation(s)
- Andrea K Boggild
- Tropical Disease Unit, Division of Infectious Diseases, Department of Medicine (Boggild, Kain), University Health Network and the University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; JD MacLean Centre for Tropical Diseases and Division of Infectious Diseases, Department of Microbiology (Libman, Yansouni), McGill University Health Centre, Montréal, Que.; Tropical Medicine and International Health Clinic, Division of Infectious Diseases (McCarthy), Ottawa Hospital and the University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek), Vancouver General Hospital, University of British Columbia, Vancouver, BC; Infectious Diseases, Vancouver Island Health Authority, Department of Medicine (Ghesquiere), University of British Columbia, Victoria, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Section of Pediatric Infectious Diseases, Departments of Pediatrics and Medicine (Kuhn), Alberta Children's Hospital and the University of Calgary, Calgary, Alta.; Center for Geographic Medicine, Department of Medicine (Freedman), University of Alabama Birmingham, Birmingham, Ala. SAR Laboratories (Kain), Sandra Rotman Centre for Global Health, Toronto, Ont
| | - Jennifer Geduld
- Tropical Disease Unit, Division of Infectious Diseases, Department of Medicine (Boggild, Kain), University Health Network and the University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; JD MacLean Centre for Tropical Diseases and Division of Infectious Diseases, Department of Microbiology (Libman, Yansouni), McGill University Health Centre, Montréal, Que.; Tropical Medicine and International Health Clinic, Division of Infectious Diseases (McCarthy), Ottawa Hospital and the University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek), Vancouver General Hospital, University of British Columbia, Vancouver, BC; Infectious Diseases, Vancouver Island Health Authority, Department of Medicine (Ghesquiere), University of British Columbia, Victoria, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Section of Pediatric Infectious Diseases, Departments of Pediatrics and Medicine (Kuhn), Alberta Children's Hospital and the University of Calgary, Calgary, Alta.; Center for Geographic Medicine, Department of Medicine (Freedman), University of Alabama Birmingham, Birmingham, Ala. SAR Laboratories (Kain), Sandra Rotman Centre for Global Health, Toronto, Ont
| | - Michael Libman
- Tropical Disease Unit, Division of Infectious Diseases, Department of Medicine (Boggild, Kain), University Health Network and the University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; JD MacLean Centre for Tropical Diseases and Division of Infectious Diseases, Department of Microbiology (Libman, Yansouni), McGill University Health Centre, Montréal, Que.; Tropical Medicine and International Health Clinic, Division of Infectious Diseases (McCarthy), Ottawa Hospital and the University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek), Vancouver General Hospital, University of British Columbia, Vancouver, BC; Infectious Diseases, Vancouver Island Health Authority, Department of Medicine (Ghesquiere), University of British Columbia, Victoria, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Section of Pediatric Infectious Diseases, Departments of Pediatrics and Medicine (Kuhn), Alberta Children's Hospital and the University of Calgary, Calgary, Alta.; Center for Geographic Medicine, Department of Medicine (Freedman), University of Alabama Birmingham, Birmingham, Ala. SAR Laboratories (Kain), Sandra Rotman Centre for Global Health, Toronto, Ont
| | - Cedric P Yansouni
- Tropical Disease Unit, Division of Infectious Diseases, Department of Medicine (Boggild, Kain), University Health Network and the University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; JD MacLean Centre for Tropical Diseases and Division of Infectious Diseases, Department of Microbiology (Libman, Yansouni), McGill University Health Centre, Montréal, Que.; Tropical Medicine and International Health Clinic, Division of Infectious Diseases (McCarthy), Ottawa Hospital and the University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek), Vancouver General Hospital, University of British Columbia, Vancouver, BC; Infectious Diseases, Vancouver Island Health Authority, Department of Medicine (Ghesquiere), University of British Columbia, Victoria, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Section of Pediatric Infectious Diseases, Departments of Pediatrics and Medicine (Kuhn), Alberta Children's Hospital and the University of Calgary, Calgary, Alta.; Center for Geographic Medicine, Department of Medicine (Freedman), University of Alabama Birmingham, Birmingham, Ala. SAR Laboratories (Kain), Sandra Rotman Centre for Global Health, Toronto, Ont
| | - Anne E McCarthy
- Tropical Disease Unit, Division of Infectious Diseases, Department of Medicine (Boggild, Kain), University Health Network and the University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; JD MacLean Centre for Tropical Diseases and Division of Infectious Diseases, Department of Microbiology (Libman, Yansouni), McGill University Health Centre, Montréal, Que.; Tropical Medicine and International Health Clinic, Division of Infectious Diseases (McCarthy), Ottawa Hospital and the University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek), Vancouver General Hospital, University of British Columbia, Vancouver, BC; Infectious Diseases, Vancouver Island Health Authority, Department of Medicine (Ghesquiere), University of British Columbia, Victoria, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Section of Pediatric Infectious Diseases, Departments of Pediatrics and Medicine (Kuhn), Alberta Children's Hospital and the University of Calgary, Calgary, Alta.; Center for Geographic Medicine, Department of Medicine (Freedman), University of Alabama Birmingham, Birmingham, Ala. SAR Laboratories (Kain), Sandra Rotman Centre for Global Health, Toronto, Ont
| | - Jan Hajek
- Tropical Disease Unit, Division of Infectious Diseases, Department of Medicine (Boggild, Kain), University Health Network and the University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; JD MacLean Centre for Tropical Diseases and Division of Infectious Diseases, Department of Microbiology (Libman, Yansouni), McGill University Health Centre, Montréal, Que.; Tropical Medicine and International Health Clinic, Division of Infectious Diseases (McCarthy), Ottawa Hospital and the University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek), Vancouver General Hospital, University of British Columbia, Vancouver, BC; Infectious Diseases, Vancouver Island Health Authority, Department of Medicine (Ghesquiere), University of British Columbia, Victoria, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Section of Pediatric Infectious Diseases, Departments of Pediatrics and Medicine (Kuhn), Alberta Children's Hospital and the University of Calgary, Calgary, Alta.; Center for Geographic Medicine, Department of Medicine (Freedman), University of Alabama Birmingham, Birmingham, Ala. SAR Laboratories (Kain), Sandra Rotman Centre for Global Health, Toronto, Ont
| | - Wayne Ghesquiere
- Tropical Disease Unit, Division of Infectious Diseases, Department of Medicine (Boggild, Kain), University Health Network and the University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; JD MacLean Centre for Tropical Diseases and Division of Infectious Diseases, Department of Microbiology (Libman, Yansouni), McGill University Health Centre, Montréal, Que.; Tropical Medicine and International Health Clinic, Division of Infectious Diseases (McCarthy), Ottawa Hospital and the University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek), Vancouver General Hospital, University of British Columbia, Vancouver, BC; Infectious Diseases, Vancouver Island Health Authority, Department of Medicine (Ghesquiere), University of British Columbia, Victoria, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Section of Pediatric Infectious Diseases, Departments of Pediatrics and Medicine (Kuhn), Alberta Children's Hospital and the University of Calgary, Calgary, Alta.; Center for Geographic Medicine, Department of Medicine (Freedman), University of Alabama Birmingham, Birmingham, Ala. SAR Laboratories (Kain), Sandra Rotman Centre for Global Health, Toronto, Ont
| | - Jean Vincelette
- Tropical Disease Unit, Division of Infectious Diseases, Department of Medicine (Boggild, Kain), University Health Network and the University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; JD MacLean Centre for Tropical Diseases and Division of Infectious Diseases, Department of Microbiology (Libman, Yansouni), McGill University Health Centre, Montréal, Que.; Tropical Medicine and International Health Clinic, Division of Infectious Diseases (McCarthy), Ottawa Hospital and the University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek), Vancouver General Hospital, University of British Columbia, Vancouver, BC; Infectious Diseases, Vancouver Island Health Authority, Department of Medicine (Ghesquiere), University of British Columbia, Victoria, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Section of Pediatric Infectious Diseases, Departments of Pediatrics and Medicine (Kuhn), Alberta Children's Hospital and the University of Calgary, Calgary, Alta.; Center for Geographic Medicine, Department of Medicine (Freedman), University of Alabama Birmingham, Birmingham, Ala. SAR Laboratories (Kain), Sandra Rotman Centre for Global Health, Toronto, Ont
| | - Susan Kuhn
- Tropical Disease Unit, Division of Infectious Diseases, Department of Medicine (Boggild, Kain), University Health Network and the University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; JD MacLean Centre for Tropical Diseases and Division of Infectious Diseases, Department of Microbiology (Libman, Yansouni), McGill University Health Centre, Montréal, Que.; Tropical Medicine and International Health Clinic, Division of Infectious Diseases (McCarthy), Ottawa Hospital and the University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek), Vancouver General Hospital, University of British Columbia, Vancouver, BC; Infectious Diseases, Vancouver Island Health Authority, Department of Medicine (Ghesquiere), University of British Columbia, Victoria, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Section of Pediatric Infectious Diseases, Departments of Pediatrics and Medicine (Kuhn), Alberta Children's Hospital and the University of Calgary, Calgary, Alta.; Center for Geographic Medicine, Department of Medicine (Freedman), University of Alabama Birmingham, Birmingham, Ala. SAR Laboratories (Kain), Sandra Rotman Centre for Global Health, Toronto, Ont
| | - David O Freedman
- Tropical Disease Unit, Division of Infectious Diseases, Department of Medicine (Boggild, Kain), University Health Network and the University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; JD MacLean Centre for Tropical Diseases and Division of Infectious Diseases, Department of Microbiology (Libman, Yansouni), McGill University Health Centre, Montréal, Que.; Tropical Medicine and International Health Clinic, Division of Infectious Diseases (McCarthy), Ottawa Hospital and the University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek), Vancouver General Hospital, University of British Columbia, Vancouver, BC; Infectious Diseases, Vancouver Island Health Authority, Department of Medicine (Ghesquiere), University of British Columbia, Victoria, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Section of Pediatric Infectious Diseases, Departments of Pediatrics and Medicine (Kuhn), Alberta Children's Hospital and the University of Calgary, Calgary, Alta.; Center for Geographic Medicine, Department of Medicine (Freedman), University of Alabama Birmingham, Birmingham, Ala. SAR Laboratories (Kain), Sandra Rotman Centre for Global Health, Toronto, Ont
| | - Kevin C Kain
- Tropical Disease Unit, Division of Infectious Diseases, Department of Medicine (Boggild, Kain), University Health Network and the University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; JD MacLean Centre for Tropical Diseases and Division of Infectious Diseases, Department of Microbiology (Libman, Yansouni), McGill University Health Centre, Montréal, Que.; Tropical Medicine and International Health Clinic, Division of Infectious Diseases (McCarthy), Ottawa Hospital and the University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek), Vancouver General Hospital, University of British Columbia, Vancouver, BC; Infectious Diseases, Vancouver Island Health Authority, Department of Medicine (Ghesquiere), University of British Columbia, Victoria, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Section of Pediatric Infectious Diseases, Departments of Pediatrics and Medicine (Kuhn), Alberta Children's Hospital and the University of Calgary, Calgary, Alta.; Center for Geographic Medicine, Department of Medicine (Freedman), University of Alabama Birmingham, Birmingham, Ala. SAR Laboratories (Kain), Sandra Rotman Centre for Global Health, Toronto, Ont
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