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Takkinsatian P, Wannaphahoon K, Upapan P, Senawong S, Prommalikit O. Measles seroprevalence in Thailand: are adolescents and young adults at risk of measles? Singapore Med J 2024; 65:340-347. [PMID: 35651287 DOI: 10.11622/smedj.2022058] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 01/06/2022] [Indexed: 11/18/2022]
Abstract
INTRODUCTION During the last decade, measles has become an important re-emerging disease in Thailand. The objective of this study was to measure measles seroprevalence and its influencing factors so as to plan an improved vaccination programme. METHODS A total of 600 participants aged between 9 months and 50 years were divided into seven groups representing birth cohorts that experienced different measles vaccination policies. Participants' blood samples were obtained to measure measles immunoglobulin G (IgG) levels. RESULTS None of the participants in the age group of 9 months had measles IgG levels beyond a protective level. Participants in the age groups 2.5, 5-15, 16-29, 30-33, 34-40 and 41-50 years had 82% (95% confidence interval [CI] 73.3-90.7), 50% (95% CI 36.1-63.9), 52% (95% CI 42.3-62.7), 70% (95% CI 61.1-78.9), 88.8% (95% CI 84.1-93.5) and 98.8% (95% CI 96.4-100.0) measles seropositivity, respectively. The study did not find any significant factors affecting measles seropositivity. CONCLUSION Individuals aged 15-34 years are vulnerable to measles infections. Supplementary vaccination should be encouraged in special situations, including postexposure prophylaxis for young adults during an outbreak and for high-risk occupations such as healthcare personnel.
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Affiliation(s)
- Panit Takkinsatian
- Department of Pediatrics, Faculty of Medicine, Srinakharinwirot University, Nakhon Nayok, Thailand
| | - Kamolmart Wannaphahoon
- Department of Pediatrics, Faculty of Medicine, Srinakharinwirot University, Nakhon Nayok, Thailand
| | - Prasit Upapan
- Department of Medicine, Faculty of Medicine, Srinakharinwirot University, Nakhon Nayok, Thailand
| | - Sansnee Senawong
- Department of Immunology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Olarn Prommalikit
- Department of Pediatrics, Faculty of Medicine, Srinakharinwirot University, Nakhon Nayok, Thailand
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Zibolenová J, Hudečková H, Chladná Z, Malobická E, Novák M, Waczulíková I, Mikas J, Mečochová A. Quantification of Waning Immunity After Measles Vaccination-Evidence From a Seroprevalence Study. Am J Epidemiol 2023; 192:1379-1385. [PMID: 36935110 DOI: 10.1093/aje/kwad065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 12/07/2022] [Accepted: 03/14/2023] [Indexed: 03/21/2023] Open
Abstract
We aimed to quantify rates of waning immunity after measles vaccination from seroprevalence data collected in a study of a population with high vaccination coverage and a fixed vaccination schedule. Data were collected during a national survey (the Immunological Survey) carried out in the Slovak Republic in 2018. The average rate of waning immunity against measles after the first dose of measles, mumps, and rubella (MMR) vaccine (ages 1.5-10 years) was 9.7% per year from the geometric mean titer value of 2,634 mUI/mL. The average waning rate after the second dose of MMR vaccine (ages 10-33 years) was significantly lower: 4.8% per year from the lower geometric mean titer of 1,331 mUI/mL. This decline in antibody levels suggests that vaccine-induced protection may be compromised and results in an increase in the proportion of seronegative/borderline individuals. These outcomes may provide a valuable source for critical assessment of direct and indirect effects of MMR vaccination.
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Nasika A, Bogogiannidou Z, Mouchtouri VA, Dadouli K, Kyritsi MA, Vontas A, Voulgaridi I, Tsinaris Z, Kola K, Matziri A, Lianos AG, Kalala F, Petinaki E, Speletas M, Hadjichristodoulou C. Measles Immunity Status of Greek Population after the Outbreak in 2017-2018: Results from a Seroprevalence National Survey. Vaccines (Basel) 2023; 11:1220. [PMID: 37515036 PMCID: PMC10385097 DOI: 10.3390/vaccines11071220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023] Open
Abstract
Accurate data on susceptibility rates against measles in the general population of Greece are scarce. Many studies have estimated the vaccination coverage, but none have calculated the nationwide immunity rate, including all age groups, against the measles virus. The purpose of our study was to determine the measles immunity status, especially after the latest outbreak in 2017-2018. In total, 3972 leftover blood samples were obtained during 2020-2021. They were collected from a nationwide laboratory network using a geographically stratified sampling strategy and were tested for the presence of measles-specific IgG antibodies. The overall crude seroprevalence was calculated to be 89.6% and the adjusted was 89.8% (95% CI: 88.8-90.8%). There was no statistically significant difference in seropositivity between sexes (p = 0.783). Higher immunity rates and antibody concentrations were found in older age groups ≥41 years old (94.9%, 95% CI: 93.7-95.9%, and 730.0 mIU/mL) in comparison with younger individuals aged 1-40 years old (83.4%, 95% CI: 81.6-85.7%, and 616.5 mIU/mL). Comparing the seroprevalence among the Nomenclature of Territorial Units for Statistics (NUTS 2), a statistically significant difference was estimated among them (<0.001). The two regions where higher measles incidence was observed during the 2017-2018 outbreak, Eastern Macedonia and Thrace, and Western Greece, were among the four regions with lower seropositivity (84.6%, 95% CI: 79.9-89.4%, and 85.9%, 95% CI: 81.4-90.4%, respectively). Our study showed a measles immunity gap that affects the younger age groups and makes a new measles outbreak likely. The enforcement of vaccination campaigns and addressing vaccine hesitancy could bridge it and achieve the required target of herd immunity.
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Affiliation(s)
- Asimina Nasika
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece
| | - Zacharoula Bogogiannidou
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece
| | - Varvara A Mouchtouri
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece
| | - Katerina Dadouli
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece
| | - Maria A Kyritsi
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece
| | - Alexandros Vontas
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece
| | - Ioanna Voulgaridi
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece
| | - Zafeiris Tsinaris
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece
| | - Konstantina Kola
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece
| | - Alexia Matziri
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece
| | - Athanasios G Lianos
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece
| | - Fani Kalala
- Department of Immunology and Histocompatibility, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece
| | - Efthimia Petinaki
- Department of Microbiology, University Hospital of Larissa, University of Thessaly, 41500 Larissa, Greece
| | - Matthaios Speletas
- Department of Immunology and Histocompatibility, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece
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Diani S, Leonardi E, Cavezzi A, Ferrari S, Iacono O, Limoli A, Bouslenko Z, Natalini D, Conti S, Mantovani M, Tramonte S, Donzelli A, Serravalle E. SARS-CoV-2-The Role of Natural Immunity: A Narrative Review. J Clin Med 2022; 11:6272. [PMID: 36362500 PMCID: PMC9655392 DOI: 10.3390/jcm11216272] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 10/17/2022] [Accepted: 10/20/2022] [Indexed: 10/21/2023] Open
Abstract
BACKGROUND Both natural immunity and vaccine-induced immunity to COVID-19 may be useful to reduce the mortality/morbidity of this disease, but still a lot of controversy exists. AIMS This narrative review analyzes the literature regarding these two immunitary processes and more specifically: (a) the duration of natural immunity; (b) cellular immunity; (c) cross-reactivity; (d) the duration of post-vaccination immune protection; (e) the probability of reinfection and its clinical manifestations in the recovered patients; (f) the comparisons between vaccinated and unvaccinated as to the possible reinfections; (g) the role of hybrid immunity; (h) the effectiveness of natural and vaccine-induced immunity against Omicron variant; (i) the comparative incidence of adverse effects after vaccination in recovered individuals vs. COVID-19-naïve subjects. MATERIAL AND METHODS through multiple search engines we investigated COVID-19 literature related to the aims of the review, published since April 2020 through July 2022, including also the previous articles pertinent to the investigated topics. RESULTS nearly 900 studies were collected, and 246 pertinent articles were included. It was highlighted that the vast majority of the individuals after suffering from COVID-19 develop a natural immunity both of cell-mediated and humoral type, which is effective over time and provides protection against both reinfection and serious illness. Vaccine-induced immunity was shown to decay faster than natural immunity. In general, the severity of the symptoms of reinfection is significantly lower than in the primary infection, with a lower degree of hospitalizations (0.06%) and an extremely low mortality. CONCLUSIONS this extensive narrative review regarding a vast number of articles highlighted the valuable protection induced by the natural immunity after COVID-19, which seems comparable or superior to the one induced by anti-SARS-CoV-2 vaccination. Consequently, vaccination of the unvaccinated COVID-19-recovered subjects may not be indicated. Further research is needed in order to: (a) measure the durability of immunity over time; (b) evaluate both the impacts of Omicron BA.5 on vaccinated and healed subjects and the role of hybrid immunity.
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Affiliation(s)
- Sara Diani
- School of Musictherapy, Université Européenne Jean Monnet, 35129 Padova, Italy
| | | | | | | | - Oriana Iacono
- Physical Medicine and Rehabilitation Department, Mirandola Hospital, 41037 Mirandola, Italy
| | - Alice Limoli
- ARPAV (Regional Agency for the Environment Protection), 31100 Treviso, Italy
| | - Zoe Bouslenko
- Cardiology Department, Valdese Hospital, 10100 Torino, Italy
| | | | | | | | - Silvano Tramonte
- Environment and Health Commission, National Bioarchitecture Institute, 20121 Milano, Italy
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Leidere-Reine A, Kolesova O, Kolesovs A, Viksna L. Seroprevalence of diphtheria and measles antibodies and their association with demographics, self-reported immunity, and immunogenetic factors in healthcare workers in Latvia. Vaccine X 2022; 10:100149. [PMID: 35243323 PMCID: PMC8881727 DOI: 10.1016/j.jvacx.2022.100149] [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: 11/23/2021] [Revised: 02/02/2022] [Accepted: 02/16/2022] [Indexed: 11/19/2022] Open
Abstract
Latvia is among European countries with outbreaks of diphtheria and measles. Healthcare workers (HCW) are exposed to infections and can transmit them to unvaccinated patients. We assessed the seroprevalence of antibodies against diphtheria and measles and their association with demographics, self-reported immunity, the presence of the HLA-B27 allele, and level of interferon regulatory factor 5 (IRF5) in Latvian HCW. Anti-diphtheria and anti-measles IgG antibodies and the level of IRF5 in serum were tested by enzyme immunoassay. The presence of the HLA-B27 allele was detected by a real-time polymerase chain reaction. The study involved 176 HCW, including 29% doctors and 44% nurses. Among HCW, 95.5% were seropositive for diphtheria. However, only 65.9% had full seroprotection against it. The seronegativity for measles (21.6%) was higher than for diphtheria (4.5%) without differences in gender and medical staff groups. Older age was associated with waning immunity against diphtheria and a higher rate of seropositivity for measles. Considered immunogenetic factors did not affect the level of antibodies, and variability of the level of IRF5 in serum can reflect ageing processes. Self-reported vaccination status had a low informative value regarding full seroprotection against diphtheria and seropositivity for measles indicating the need for pre-vaccination IgG screening in planning the booster vaccination.
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Affiliation(s)
- Aija Leidere-Reine
- Department of Infectology, Rīga Stradiņš University, 3 Linezera Street, Rīga LV-1006, Latvia
| | - Oksana Kolesova
- Department of Infectology, Rīga Stradiņš University, 3 Linezera Street, Rīga LV-1006, Latvia
- Institute of Microbiology and Virology, Joint Laboratory of Clinical Immunology and Immunogenetics, Rīga Stradiņš University, 5 Ratsupites Street, Rīga LV-1067, Latvia
- Corresponding author at: 5 Ratsupites Street, Rīga LV-1067, Latvia.
| | - Aleksandrs Kolesovs
- Department of Infectology, Rīga Stradiņš University, 3 Linezera Street, Rīga LV-1006, Latvia
- Faculty of Education, Psychology, and Art, University of Latvia, 1 Imantas 7 line, Rīga LV-1083, Latvia
| | - Ludmila Viksna
- Department of Infectology, Rīga Stradiņš University, 3 Linezera Street, Rīga LV-1006, Latvia
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Krupka M, Matusu T, Sutova H, Wezdenkova K, Vecerova R, Smesna Y, Kolar M, Frankova HB, Krivankova J, Jorenek M, Novak Z, Raska M, Holy O. Seroprevalence of Measles Antibodies in the Population of the Olomouc Region, Czech Republic—Comparison of the Results of Four Laboratories. Vaccines (Basel) 2022; 10:vaccines10020185. [PMID: 35214643 PMCID: PMC8880731 DOI: 10.3390/vaccines10020185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/19/2022] [Accepted: 01/21/2022] [Indexed: 01/06/2023] Open
Abstract
Objectives: Although the incidence of measles has decreased globally since the introduction of regular vaccination, its frequency has increased again in recent years. The study is focused on data from the Olomouc Region in the Czech Republic analyzed in four laboratories. The obtained results were compared with already published data. Methods: The data were provided by individual laboratories in an anonymized form—age at the time of the examination, sex, and result of test. Samples were collected between June 2018 and September 2019 and evaluated on the scale positive–borderline–negative. Results: A total of 7962 sera samples were evaluated using three different methods—two types of ELISA tests and CLIA. Positive result was issued in a total of 62.6 percent of samples, but the results of individual laboratories varied widely from 55.5 to 70.8 percent. However, the same trend with the highest levels of antibodies in people born before beginning of vaccination was observed. Conclusions: Data show significantly different results depending on the individual laboratories and the detection kits used. The underestimation of the proportion of positive results can cause problems in selecting individuals for revaccination with a live vaccine, which may fail in weakly positive individuals.
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Affiliation(s)
- Michal Krupka
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, 775 15 Olomouc, Czech Republic; (M.K.); (M.R.)
| | - Tereza Matusu
- Mikrochem Laboratories a.s., 779 00 Olomouc, Czech Republic; (T.M.); (H.S.); (K.W.)
| | - Helena Sutova
- Mikrochem Laboratories a.s., 779 00 Olomouc, Czech Republic; (T.M.); (H.S.); (K.W.)
| | - Katerina Wezdenkova
- Mikrochem Laboratories a.s., 779 00 Olomouc, Czech Republic; (T.M.); (H.S.); (K.W.)
| | - Renata Vecerova
- Department of Microbiology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, 775 15 Olomouc, Czech Republic; (R.V.); (Y.S.); (M.K.)
| | - Yvona Smesna
- Department of Microbiology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, 775 15 Olomouc, Czech Republic; (R.V.); (Y.S.); (M.K.)
| | - Milan Kolar
- Department of Microbiology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, 775 15 Olomouc, Czech Republic; (R.V.); (Y.S.); (M.K.)
| | | | - Jana Krivankova
- Šumperk Hospital, 787 01 Šumperk, Czech Republic; (J.K.); (M.J.)
| | - Miroslav Jorenek
- Šumperk Hospital, 787 01 Šumperk, Czech Republic; (J.K.); (M.J.)
| | - Zdenek Novak
- Department of Surgery, University of Alabama at Birmingham, Birmingham, AL 35294, USA;
| | - Milan Raska
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, 775 15 Olomouc, Czech Republic; (M.K.); (M.R.)
| | - Ondrej Holy
- Science and Research Centre, Faculty of Health Sciences, Palacky University Olomouc, Hněvotínská 3, 775 15 Olomouc, Czech Republic
- Correspondence: ; Tel.: +420-585-632-818
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Saffar H, Mousavi SJ, Saffar H, Parsaei MR, Ghorbani GR, Saffar MJ. Seroconversion rates following 2 doses of measles- mumps- rubella vaccination given at the ages 12 and 18 months: data for possible additional dose at older age. BMC Immunol 2022; 23:2. [PMID: 35034609 PMCID: PMC8762940 DOI: 10.1186/s12865-021-00465-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 11/10/2021] [Indexed: 11/29/2022] Open
Abstract
Background Despite high rate of vaccination coverage with 2-doses of measles containing vaccine among Iranian children, outbreaks of measles occurred among different age groups and fully vaccinated subjects. Although the main reason for these outbreaks is unknown, however, vaccine failure was supposed to be an important cause. This study was designed to determine the seroconversion rates to measles- mumps- rubella (MMR) vaccine currently in use among Iranian children. Methods This prospective study was conducted among healthy children older than 12 months who were candidates of scheduled MMR vaccination. Blood samples were obtained from each mother- infant pair just before vaccination, and from infants 4–6 weeks after MMR1 and MMR2 immunization. Collected sera were tested for specific lgG antibodies against MMR agents using ELISA method. The proportion of seroprotected subjects among mother- infant pairs before vaccination as well as the prevalence rates of seroconversion after MMR1 and MMR2 vaccination were calculated. Collected data were analyzed using descriptive statistical methods. Results During 22-months study period, 92 mother- infant pairs were participated. Seroimmunity rates against MMR viruses were 85.8%, 84.7% and 86.9% for mothers, and 3.2%, 2.1% and 1.0% for children, respectively. After MMR1 vaccination from 52 seronegative children, 80.7%, 78.8% and 75% were seroconverted. These rates increased to 94.8%, 89.7% and 94.8% after the MMR2 vaccination. Also, the specific immunity was enhanced among seropositive children. Conclusion Majority of the mothers and few infants were immune to MMR viruses prior to MMR1 vaccination. Immune responses detected after MMR1 injection, and overall seroconversion rates achieved after 2-doses of MMR vaccination were less than expected and inadequate to preserve long-term protection against MMR agents.
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Affiliation(s)
- Hana Saffar
- Department of Anatomical and Clinical Pathology, IKHC, Teheran University of Medical Sciences, Tehran, Iran
| | - Sayed Jaber Mousavi
- Department of Community Medicine, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Hiva Saffar
- Department of Pathology, Shariati Hospital, Teheran University of Medical Sciences, Tehran, Iran
| | | | | | - Mohammad Jafar Saffar
- Pediatric Infectious Diseases Research Center, Communicable Diseases Institute and Department of Pediatric Infectious Diseases, Bu-Ali Sina Hospital, Mazandaran University of Medical Sciences, Pasdaran Bolv, Sari, Iran.
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Hong HS, Jung J, Park SH, Kim HJ, Hwang SW, Yang DH, Byeon JS, Myung SJ, Yang SK, Ye BD. Seroprevalence of viral infectious diseases and associated factors in Korean patients with inflammatory bowel diseases. Korean J Intern Med 2022; 37:73-84. [PMID: 34482682 PMCID: PMC8747916 DOI: 10.3904/kjim.2020.386] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 11/02/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND/AIMS Data on the immunoprotective status against measles, mumps, rubella, varicella zoster virus (VZV), hepatitis A virus (HAV), and Epstein-Barr virus (EBV) infection in patients with inflammatory bowel disease (IBD) are still lacking. Therefore, we investigated the seropositivity rates for viral infectious diseases and the associated factors in Korean patients with IBD. METHODS In this retrospective cohort study, serum immunoglobulin G antibody positivity rates against measles virus, mumps virus, rubella virus, VZV, HAV, and EBV viral capsid antigen (VCA) were measured in patients with Crohn's disease or ulcerative colitis (UC) who first visited the IBD clinic. Seropositivity rates and their associated factors were analyzed. RESULTS Between January 2016 and December 2018, 263 patients were enrolled (male, 167 [67.3%]; UC, 134 [50.9%]). The median age at serological test was 30 years (interquartile range, 22 to 46). The seropositivity rates were 84.0%, 85.2%, 66.5%, 87.4%, 50.0%, and 93.7% for measles, mumps, rubella, VZV, HAV, and EBV, respectively. Younger age at serological test was associated with seronegative status for measles (adjusted odds ratio [aOR], 0.92; 95% confidence interval [CI], 0.88 to 0.96), VZV (aOR, 0.83; 95% CI, 0.74 to 0.93), and HAV (aOR, 0.93; 95% CI, 0.91 to 0.95). Furthermore, IBD type-UC was associated with seronegative status against VZV (aOR, 0.33; 95% CI, 0.11 to 0.99). CONCLUSION Seropositivity rates for common viral infectious diseases in Korean patients with IBD were similar to those of the general population. In the younger age group, protective immunity against measles, VZV, and HAV is required, with proper vaccination, as necessary.
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Affiliation(s)
- Hee Seung Hong
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jiwon Jung
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sang Hyoung Park
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- Department of Inflammatory Bowel Disease Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hwa Jung Kim
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, University of Ulsan College of Medicine, Seoul,
Korea
| | - Sung Wook Hwang
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- Department of Inflammatory Bowel Disease Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Dong-Hoon Yang
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jeong-Sik Byeon
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Seung-Jae Myung
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Suk-Kyun Yang
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- Department of Inflammatory Bowel Disease Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Byong Duk Ye
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- Department of Inflammatory Bowel Disease Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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OUP accepted manuscript. Trans R Soc Trop Med Hyg 2022; 116:686-693. [DOI: 10.1093/trstmh/trac013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 07/17/2021] [Accepted: 02/13/2022] [Indexed: 11/13/2022] Open
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Seroepidemiology of Measles, Mumps, Rubella and Varicella in Italian Female School Workers: A Cross-Sectional Study. Vaccines (Basel) 2021; 9:vaccines9101191. [PMID: 34696299 PMCID: PMC8538669 DOI: 10.3390/vaccines9101191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/12/2021] [Accepted: 10/12/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Determining the proportion of susceptible workers can represent a first step to the biological risk assessment related to measles, mumps, rubella and varicella exposure. This study aimed to assess the immunity against measles, mumps, rubella and varicella viruses in a cohort of female school workers. METHODS A cross-sectional seroepidemiological study in a sample of 263 school workers undergoing routine annual workplace health surveillance program was conducted. As part of the health surveillance program, serum samples were collected and tested for measles, mumps, rubella and varicella IgG antibodies. RESULTS Overall seropositivity was 90.5%, 85.2%, 94.7% and 97.3% for measles, mumps, rubella and varicella, respectively. In relation to mumps occupation-specific seropositivity, a statistically significant difference was observed, showing the lowest prevalence of protected individuals in other occupation groups. Moreover, in relation to rubella, school workers born in Centre Italy had the lowest seropositivity of protective antibodies and the difference between groups was statistically significant. Measles and rubella seropositivity showed a significant decrease after 2015. CONCLUSIONS This study showed a relevant proportion of school workers susceptible to the aforementioned diseases. These results highlighted the need for proper health surveillance and immunological controls in school workers, especially for females, and provided useful insights to policymakers to select effective strategies aimed at containing the risk of vaccine-preventable diseases at schools.
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Friedrich N, Poethko-Müller C, Kuhnert R, Matysiak-Klose D, Koch J, Wichmann O, Santibanez S, Mankertz A. Seroprevalence of Measles-, Mumps-, and Rubella-specific antibodies in the German adult population - cross-sectional analysis of the German Health Interview and Examination Survey for Adults (DEGS1). THE LANCET REGIONAL HEALTH. EUROPE 2021; 7:100128. [PMID: 34557838 PMCID: PMC8454806 DOI: 10.1016/j.lanepe.2021.100128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND The WHO European Region targets the elimination of measles, rubella, and the congenital rubella syndrome and welcomes mumps elimination via the joint MMR vaccine. In a push towards this elimination goal, Germany introduced a recommendation on MMR vaccination for adults in 2010 to prevent increasing numbers of measles cases among adults and to strengthen herd immunity. METHODS The prevalence of anti-measles, -mumps, and -rubella IgG antibodies was analysed in 7,115 participants between the ages of 18 and 79 years in the German Health Interview and Examination Survey. Risk factors of seronegativity of adults born 1970 or later were determined. FINDINGS The seroprevalence of anti-measles IgG antibodies was more than 97% in adults born before 1965 and less than 90% in adults born afterwards. Prevalence and GMTs declined with later years of birth. Seronegativity was associated with two-sided migration background and region of residence in East Germany. For anti-mumps IgG antibodies, the seroprevalence was less than 90% in almost all age groups. Prevalence and GMTs declined with later years of birth. Seronegativity was not associated with any socio-demographic factor. Anti-rubella IgG seropositivity was found in more than 90% of adults born before 1985. GMTs declined in younger age groups. Seronegativity was associated with birth between 1980 and 1993 and male gender. High socio-economic status lowered the odds of being seronegative. INTERPRETATION These data reinforce the implementation of the vaccination recommendation for adults and provide the basis for further evaluation of this measure. FUNDING The Federal Ministry of Health, Germany.
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Affiliation(s)
- Nicole Friedrich
- National Reference Centre Measles, Mumps, Rubella, Robert Koch Institute, Seestraße 10, 13353 Berlin, Germany
| | | | - Ronny Kuhnert
- Epidemiological Data Centre, Robert Koch Institute, General-Pape-Straße 62-66, 12101 Berlin, Germany
| | | | - Judith Koch
- Immunization Unit, Robert Koch Institute, Seestraße 10, 13353 Berlin, Germany
| | - Ole Wichmann
- Immunization Unit, Robert Koch Institute, Seestraße 10, 13353 Berlin, Germany
| | - Sabine Santibanez
- National Reference Centre Measles, Mumps, Rubella, Robert Koch Institute, Seestraße 10, 13353 Berlin, Germany
| | - Annette Mankertz
- National Reference Centre Measles, Mumps, Rubella, Robert Koch Institute, Seestraße 10, 13353 Berlin, Germany
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Kim CJ, Bae JY, Jun KI, Chung HS, Kim A, Kim J, Son HJ, Lee M, Choi HJ. Risk of Absence of Measles Antibody in Healthcare Personnel and Efficacy of Booster Vaccination. Vaccines (Basel) 2021; 9:vaccines9050501. [PMID: 34066145 PMCID: PMC8151488 DOI: 10.3390/vaccines9050501] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/05/2021] [Accepted: 05/08/2021] [Indexed: 11/18/2022] Open
Abstract
We aimed to identify the presence of the measles IgG antibody (mIgG-Ab) in healthcare personnel and finding out who needs the measles vaccination. The history of measles vaccination was obtained from the national vaccine registry. A baseline mIgG-Ab test was performed, and the measles vaccine was administered to participants who tested negative or equivocal for mIgG-Abs. During the study, 2885 (87.3%) of the 3303 employees were tested for measles serostatus. The baseline seropositivity rate for mIgG-Abs was 91.9%. Among the 234 seronegative cases, 82.9% were born after 1985. The seroprevalence rate was lower in those who received the measles–mumps–rubella (MMR) vaccine >10 years before the testing time, especially if they were born after 1985 and if there was only one previous record of vaccination. Among the 234 seronegative cases, MMR vaccination was administered in 174 cases, of which serostatus was evaluated in 146 cases. After the first dose, positive seroconversion was achieved in 126 participants (86.3%). After a second dose, 15 achieved (75.0%) positive seroconversion. In healthcare personnel born after the period when measles incidence significantly decreased, it may be necessary to reassess their immune status for measles if more than 10 years have elapsed since the last vaccination.
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Affiliation(s)
- Chung-Jong Kim
- Department of Internal Medicine, Ewha Womans University Seoul Hospital, Seoul 07804, Korea;
- Ewha Education and Research Center for Infection, Seoul 07985, Korea; (J.-Y.B.); (H.-S.C.); (M.L.); (H.-J.C.)
- Correspondence: ; Tel.: +82-2-6986-1643
| | - Ji-Yun Bae
- Ewha Education and Research Center for Infection, Seoul 07985, Korea; (J.-Y.B.); (H.-S.C.); (M.L.); (H.-J.C.)
- Department of Internal Medicine, Ewha Womans University Mokdong Hospital, Seoul 07985, Korea
| | - Kang-Il Jun
- Department of Internal Medicine, Ewha Womans University Seoul Hospital, Seoul 07804, Korea;
- Ewha Education and Research Center for Infection, Seoul 07985, Korea; (J.-Y.B.); (H.-S.C.); (M.L.); (H.-J.C.)
| | - Hae-Sun Chung
- Ewha Education and Research Center for Infection, Seoul 07985, Korea; (J.-Y.B.); (H.-S.C.); (M.L.); (H.-J.C.)
- Department of Laboratory Medicine, Ewha Womans University Seoul Hospital, Seoul 07804, Korea
| | - Aeyeon Kim
- Office of Infection Control, Ewha Womans University Seoul Hospital, Seoul 07804, Korea; (A.K.); (J.K.)
| | - Jihee Kim
- Office of Infection Control, Ewha Womans University Seoul Hospital, Seoul 07804, Korea; (A.K.); (J.K.)
| | - Hee-Jung Son
- Office of Infection Control, Ewha Womans University Mokdong Hospital, Seoul 07985, Korea;
| | - Miae Lee
- Ewha Education and Research Center for Infection, Seoul 07985, Korea; (J.-Y.B.); (H.-S.C.); (M.L.); (H.-J.C.)
- Department of Laboratory Medicine, Ewha Womans University Mokdong Hospital, Seoul 07985, Korea
| | - Hee-Jung Choi
- Ewha Education and Research Center for Infection, Seoul 07985, Korea; (J.-Y.B.); (H.-S.C.); (M.L.); (H.-J.C.)
- Department of Internal Medicine, Ewha Womans University Mokdong Hospital, Seoul 07985, Korea
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13
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Saffar H, Khalifeloo M, Saffar MJ, Abdollahi A, Parsaei MR, Ghorbani GR, Salarvand S, Aarabi M. Measles and rubella serosusceptibity among population vaccinated with different schedules: the potential impact on measles-rubella elimination in Iran. BMC Infect Dis 2021; 21:305. [PMID: 33765968 PMCID: PMC7995582 DOI: 10.1186/s12879-021-05970-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 03/08/2021] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Iranian children were vaccinated with the scheduled two doses of monovalent measles vaccine (mMV) from 1984. In December 2003, a nationwide campaign of measles-rubella (MR) immunization was established to vaccinate 5-25 year- old individuals. In 2004, the mMV was replaced with measles- mumps- rubella (MMR) vaccine. Despite the high vaccination coverage, the outbreaks of measles still occur in the country. In this Study, the MR immunity status of various age groups, vaccinated with different schedules was investigated, and the immunologic response of seronegative subjects to revaccination was examined. METHODS This cross-sectional study was conducted among 7-33-year-old healthy individuals with a documented history of measles vaccination from November 2017 to June 2018. The subjects were categorized as follows: group A, including 20-33 year-old individuals; vaccinated with 1-2 doses of mMV at ages 9 and 15 months, and revaccinated with MR, group B, including 15-19-year-old individuals, vaccinated with two doses of mMV at 9 and 15 months of age, and received additional dose of MMR upon school entrance, group C, including 11-14 year-old individuals, vaccinated with two-doses of MMR at the ages of 15 months and 6 years, and group D, including 7-10 year-old individuals vaccinated with two-doses of MMR vaccine at the ages 12 and 18 months, respectively. Levels of antimeasles- antirubella IgG antibodies in the collected sera were measured. Also antimeasles- antirubella IgM and IgG of seronegative individuals were reexamined at 4-6 weeks after MMR revaccination. The collected data were analyzed using descriptive statistical methods. RESULTS A total of 635 individuals were investigated in this study. Group A, 98; group B, 295; group C, 139; and group D, 103 persons. Overall, 12.3 and 18.4% of the population were seronegative for measles and rubella antibodies. This rate varied greatly between the 4 groups: group A, 0/0-2%; group B,15.2-25.0%; group C,11.5-17.2%; and groupD,14.6-18.4%. After revaccination, 92 and 94.9% of seronegative individuals showed IgG response to measles and rubella vaccines, respectively. CONCLUSION Despite the high coverage rate of M-R containing vaccines, a significant number of vaccinated subjects were seronegative for measles and rubella, possibly because of secondary vaccine failure; this may negatively affect measles-rubella elimination targets in the country. If these findings are confirmed in similar future studies, a more robust regional/national supplementary immunization activity will be considered.
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Affiliation(s)
- Hana Saffar
- Department of Pathology, School of medicine, IKHC, Teheran University of Medical Sciences, Tehran, Iran
| | - Maryam Khalifeloo
- Department of Pathology, School of medicine, IKHC, Teheran University of Medical Sciences, Tehran, Iran
| | - Mohammad-Jafar Saffar
- Pediatric Infectious Diseases Research Center, communicable Diseases Institute, and Department of Pediatric Infectious Diseases, Bu-Ali Sina Hospital, Mazandaran University of Medical Sciences, Pasdaran Bolv, Sari, Iran
| | - Alireza Abdollahi
- Department of Pathology, School of medicine, IKHC, Teheran University of Medical Sciences, Tehran, Iran
| | | | | | - Samaneh Salarvand
- Department of Pathology, School of medicine, IKHC, Teheran University of Medical Sciences, Tehran, Iran
| | - Mohsen Aarabi
- Deputy of Health, Mazandaran University of Medical Sciences, Sari, Iran
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Mahallawi WH, Ibrahim NA. Seroprevalence against the measles virus after vaccination or natural infection in an adult population in Madinah, Saudi Arabia. Hum Vaccin Immunother 2021; 17:2522-2529. [PMID: 33573436 DOI: 10.1080/21645515.2021.1876486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Background: Over the past few years, measles cases have increased worldwide, despite the availability of a safe and highly effective vaccine. Numerous countries have eliminated measles or have made substantial advancements toward elimination.Materials and Methods: This study investigated the seroprevalence of anti-measles antibodies and vaccination status among 362 men and 81 women in Madinah. All participants were vaccinated or acquired immunity naturally due to infection. We aimed to examine the persistence of anti-measles IgG antibodies, which were qualitatively and quantitatively determined using ELISA.Results: We showed that measles seropositivity (92%, n = 408) was significantly more frequent than negative (5.4%, n = 14) and equivocal results (2.5%, n = 11). Among men, 92.8% were seropositive for the anti-measles IgG antibody, whereas 88.9% of women were seropositive. In addition, a significant relationship was observed between age and measles seropositivity, with a significant positive correlation between age and anti-measles antibody concentration as assessed by Spearman's correlation analysis (r = 0.405, p < .001).Conclusion: Based on these results, observing the serological status of the population 20-38 y after vaccination may be necessary to minimize the proportion of individuals who may be vulnerable to contracting measles. Despite the efficacy of the measles, mumps, and rubella vaccine and the positive global impact associated with the use of this vaccine, including a general decline in measles cases, attention must still be paid to the issue of measles risk, and seronegative individuals should be identified and advised to receive a booster dose of the vaccine.
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Affiliation(s)
- Waleed H Mahallawi
- Department of Medical Laboratory Technology, College of Applied Medical Sciences, Taibah University, Madinah, Saudi Arabia
| | - Nadir A Ibrahim
- Department of Medical Laboratory Technology, College of Applied Medical Sciences, Taibah University, Madinah, Saudi Arabia
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15
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Lee YC, Lee YH, Lu CW, Cheng SY, Yang KC, Huang KC. Measles immunity gaps in an era of high vaccination coverage: A serology study from Taiwan. Travel Med Infect Dis 2020; 36:101804. [PMID: 32569810 DOI: 10.1016/j.tmaid.2020.101804] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 05/19/2020] [Accepted: 06/17/2020] [Indexed: 01/13/2023]
Abstract
BACKGROUND Routine vaccination for children drastically reduces measles cases. Nonetheless, the global resurgence of measles since 2018 highlights the need for evaluating vaccine-induced immunity in an era of high vaccination coverage, especially in international travelers. This study aims to identify high-risk persons via analyzing the impact of age and different vaccination schedules on seroprevalence of measles in a country with high vaccination coverage, attempting to provide suggestions regarding pre-travel measles vaccination in highly immunized countries. METHOD We retrospectively collected serological results of measles from Taiwanese travelers during 2008-2017 and middle-aged subjects from community during 2007-2009. Participants were classified by age groups and cohort based on the national immunization program: cohort I (pre-mass vaccination), cohort II (suboptimal measles vaccination), and cohort III (2-dose MMR in childhood). The effects of age group on seropositivity was shown by odds ratio (OR) with 95% confidence interval (CI) in a logistic regression model. RESULTS The overall measles seroprevalence was 74.5% (N = 1096, mean age = 31.7 ± 12.3 years), with adolescents having the lowest seropositivity (65.9%) and participants ≥50 years having the highest (89.4%). Seropositivity was significantly higher in cohort I (pre-mass vaccination) compared with the other 2 cohorts (P < 0.0001). The effect of aging on seropositivity was only significant in cohort II (OR = 1.84, 95% CI = 1.13-2.99, P = 0.014 for 30-39 years vs. 20-29 years). CONCLUSIONS Waning immunity to measles in adolescents and young adults is a dominant issue in highly vaccinated cohorts. Enhancing pre-travel vaccination against measles can effectively fill the immunity gaps in highly immunized countries.
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Affiliation(s)
- Yi-Chen Lee
- Department of Family Medicine, National Taiwan University Hospital, Bei-Hu Branch, Taipei, Taiwan; Training Center for Travel Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Yi-Hsuan Lee
- Department of Family Medicine, National Taiwan University Hospital, Bei-Hu Branch, Taipei, Taiwan; Training Center for Travel Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Chia-Wen Lu
- Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan; Training Center for Travel Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Shao-Yi Cheng
- Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan; Training Center for Travel Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Kuen-Cheh Yang
- Department of Family Medicine, National Taiwan University Hospital, Bei-Hu Branch, Taipei, Taiwan.
| | - Kuo-Chin Huang
- Department of Family Medicine, National Taiwan University Hospital, Bei-Hu Branch, Taipei, Taiwan; Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan; Training Center for Travel Medicine, National Taiwan University Hospital, Taipei, Taiwan.
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16
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Ding Y, Chen W, Lei Y, Mao N, Gao Z, Xu W, Zhang Y. Evaluating the population measles susceptibility in Tianjin, China. Vaccine 2020; 38:4829-4836. [PMID: 32482462 DOI: 10.1016/j.vaccine.2020.05.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 05/09/2020] [Accepted: 05/17/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND Measles is a highly infectious illness requiring herd immunity of 95% to interrupt transmission. China has not reached elimination goals despite high vaccination coverage. We estimated the population susceptibility against measles in Tianjin, China and to tailor awareness raising activities in the measles elimination plan. METHODS Age-specific measles seroprevalence was evaluated by Enzyme-Linked Immunosorbent Assay (ELISA) on 12,164 individual aged 0-44 years in 2009-2018. Measles IgG avidity testing was performed to confirm the relationship of the waning immunity after vaccination and secondary vaccination failures (SVF) on 324 confirmed measles cases in 2013-2018. RESULTS 11,108 samples (91.32%) tested positive for measles IgG, 239 (1.96%) tested as equivocal and 817 (6.72%) were negative. The age distribution of measles cases in Tianjin followed a U-shaped curve and was highest for those at <8 months and again at 20-39 years which correlated closely with the age distribution of measles susceptibility based on measles IgG antibody status (r = 0.72, P < 0.001). The seropositivity rate and antibody geometric mean concentration (GMC) for the 2018 study population were significantly lower (χ2 = 7.45, P = 0.006 and t = 12.01, P < 0.001) compared to 2009. The multivariate stepwise logistic regression analysis showed that age and region were the risk factors for both measles seropositivity rate and GMC after vaccination. The proportion of high avidity cases increased with age, being significantly higher in 75.31% of cases in patients aged 30-34 years (χ2 = 18.04, P = 0.003). CONCLUSIONS High immunization coverage in children alone will not be adequate to realizing sufficient levels of population herd immunity, particularly given that the potential susceptibility window in adult. Implementation of supplemental immunization activity (SIA) targeted to appropriate group aged 30-34 years is recommended.
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Affiliation(s)
- Yaxing Ding
- Department of Expanded Program Immunization, Tianjin Center for Disease Control and Prevention, 6 Hua Yue Street, Hedong District, Tianjin 300011, China.
| | - Wei Chen
- Department of Expanded Program Immunization, Tianjin Center for Disease Control and Prevention, 6 Hua Yue Street, Hedong District, Tianjin 300011, China
| | - Yue Lei
- Department of Viral Laboratory, Tianjin Center for Disease Control and Prevention, 6 Hua Yue Street, Hedong District, Tianjin 300011, China
| | - Naiying Mao
- NHC Key Laboratory of Medical Virology and Viral Diseases and WHO WPRO Regional Reference Measles/Rubella Laboratory, National Institute for Viral Disease Control and Prevention, Chinese Center for Diseases Control and Prevention, 155 Changbai Road, Changping District, Beijing 102206, China
| | - Zhigang Gao
- Department of Expanded Program Immunization, Tianjin Center for Disease Control and Prevention, 6 Hua Yue Street, Hedong District, Tianjin 300011, China
| | - Wenbo Xu
- National Institute for Viral Disease Control and Prevention, Chinese Center for Diseases Control and Prevention, 155 Changbai Road, Changping District, Beijing 102206, China
| | - Ying Zhang
- Institute for Infectious Diseases Control and Prevention, Tianjin Center for Disease Control and Prevention, 6 Hua Yue Street, Hedong District, Tianjin 300011, China
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Azad C, Arya A, Raina D, Gupta R. Atypical Subacute Sclerosing Panencephalitis in a Young Child: Implications for Change in Vaccination Strategy. JOURNAL OF PEDIATRIC NEUROLOGY 2020. [DOI: 10.1055/s-0039-1677711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
AbstractSubacute sclerosing panencephalitis (SSPE) is a serious neurological complication of measles with no satisfactory treatment options. The prolonged incubation period makes it rare in young children. The occurrence of primary measles infection in infants before age of vaccination can be prevented only by ensuring adequate vaccination of all females in childbearing age. Here, we present a case of an atypical presentation of SSPE in a toddler who contracted measles at 6 months of age.
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Affiliation(s)
- Chandrika Azad
- Department of Pediatrics, Government Medical College and Hospital, Chandigarh, India
| | - Adhi Arya
- Department of Pediatrics, Government Medical College and Hospital, Chandigarh, India
| | - Deepti Raina
- Government Institute for Rehabilitation of Intellectual Disabilities, Chandigarh, India
| | - Rekha Gupta
- Department of Radiodiagnosis, Government Medical College and Hospital, Chandigarh, India
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18
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Štěpánek L, Nakládalová M, Boriková A, Horáková D, Štěpánek L. Measles immunity in a Czech tertiary care hospital. Vaccine 2020; 38:2889-2892. [PMID: 32127226 DOI: 10.1016/j.vaccine.2020.02.067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/20/2020] [Accepted: 02/22/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND Given the increasing incidence of measles, the aim was to assess the seroprevalence of measles immunity among employees of a Czech tertiary care hospital and to assess their willingness to revaccination. METHODS 3027 hospital employees (2421 females, 606 males) underwent a serological analysis of their measles antibody levels with an option of revaccination in case of an insufficient level. RESULTS The median age of participants was 42 years. Seropositivity was noted in 54% of the participants, with the antibody values higher in the oldest study participants and with a decrease around the birth year 1968. Logistic regression analysis confirmed a significant relationship of seropositivity with age (odds ratio 0.97, p < 0.005). Out of the seronegative, 80.9% individuals got revaccinated. CONCLUSIONS 46% of the participants did not reach a sufficient antibody level set by the assay's manufacturer. Although the routine vaccination system is well established it may be ineffective.
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Affiliation(s)
- Ladislav Štěpánek
- Department of Occupational Medicine, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University Olomouc, I. P. Pavlova 185/6, 779 00 Olomouc, Czech Republic.
| | - Marie Nakládalová
- Department of Occupational Medicine, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University Olomouc, I. P. Pavlova 185/6, 779 00 Olomouc, Czech Republic.
| | - Alena Boriková
- Department of Occupational Medicine, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University Olomouc, I. P. Pavlova 185/6, 779 00 Olomouc, Czech Republic.
| | - Dagmar Horáková
- Department of Public Health, Faculty of Medicine and Dentistry, Palacký University Olomouc, Hněvotínská 976/3, 775 15 Olomouc, Czech Republic.
| | - Lubomír Štěpánek
- Institute of Biophysics and Informatics, First Faculty of Medicine, Charles University, Salmovská 1, 120 00 Praha 2, Czech Republic.
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Anichini G, Gandolfo C, Fabrizi S, Miceli GB, Terrosi C, Gori Savellini G, Prathyumnan S, Orsi D, Battista G, Cusi MG. Seroprevalence to Measles Virus after Vaccination or Natural Infection in an Adult Population, in Italy. Vaccines (Basel) 2020; 8:vaccines8010066. [PMID: 32028593 PMCID: PMC7158681 DOI: 10.3390/vaccines8010066] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/26/2020] [Accepted: 01/31/2020] [Indexed: 11/16/2022] Open
Abstract
An increase in measles cases worldwide, with outbreaks, has been registered in the last few years, despite the availability of a safe and highly efficacious vaccine. In addition to an inadequate vaccination coverage, even in high-income European countries studies proved that some vaccinated people were also found seronegative years after vaccination, thus increasing the number of people susceptible to measles infection. In this study, we evaluated the immunization status and the seroprevalence of measles antibodies among 1092 healthy adults, either vaccinated or naturally infected, in order to investigate the persistence of anti-measles IgG. Among subjects who received two doses of measles vaccine, the neutralizing antibody titer tended to decline over time. In addition, data collected from a neutralization assay performed on 110 healthy vaccinated subjects suggested an inverse correlation between neutralizing antibody titers and the time elapsed between the two vaccinations, with a significant decline in the neutralizing titer when the interval between the two doses was ≥11 years. On the basis of these results, monitoring the serological status of the population 10-12 years after vaccination could be important both to limit the number of people who are potentially susceptible to measles, despite the high efficacy of MMR vaccine, and to recommend a booster vaccine for the seronegatives.
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Affiliation(s)
- Gabriele Anichini
- Department of Medical Biotechnologies, University of Siena, Santa Maria delle Scotte Hospital, V.le Bracci, 1 53100 Siena, Italy; (G.A.); (C.G.); (C.T.); (G.G.S.); (S.P.)
| | - Claudia Gandolfo
- Department of Medical Biotechnologies, University of Siena, Santa Maria delle Scotte Hospital, V.le Bracci, 1 53100 Siena, Italy; (G.A.); (C.G.); (C.T.); (G.G.S.); (S.P.)
| | - Simonetta Fabrizi
- Preventive Medicine and Health Surveillance Unit, Santa Maria delle Scotte Hospital, V.le Bracci, 1 53100 Siena, Italy; (S.F.); (G.B.M.); (D.O.); (G.B.)
| | - Giovan Battista Miceli
- Preventive Medicine and Health Surveillance Unit, Santa Maria delle Scotte Hospital, V.le Bracci, 1 53100 Siena, Italy; (S.F.); (G.B.M.); (D.O.); (G.B.)
| | - Chiara Terrosi
- Department of Medical Biotechnologies, University of Siena, Santa Maria delle Scotte Hospital, V.le Bracci, 1 53100 Siena, Italy; (G.A.); (C.G.); (C.T.); (G.G.S.); (S.P.)
| | - Gianni Gori Savellini
- Department of Medical Biotechnologies, University of Siena, Santa Maria delle Scotte Hospital, V.le Bracci, 1 53100 Siena, Italy; (G.A.); (C.G.); (C.T.); (G.G.S.); (S.P.)
| | - Shibily Prathyumnan
- Department of Medical Biotechnologies, University of Siena, Santa Maria delle Scotte Hospital, V.le Bracci, 1 53100 Siena, Italy; (G.A.); (C.G.); (C.T.); (G.G.S.); (S.P.)
| | - Daniela Orsi
- Preventive Medicine and Health Surveillance Unit, Santa Maria delle Scotte Hospital, V.le Bracci, 1 53100 Siena, Italy; (S.F.); (G.B.M.); (D.O.); (G.B.)
| | - Giuseppe Battista
- Preventive Medicine and Health Surveillance Unit, Santa Maria delle Scotte Hospital, V.le Bracci, 1 53100 Siena, Italy; (S.F.); (G.B.M.); (D.O.); (G.B.)
| | - Maria Grazia Cusi
- Preventive Medicine and Health Surveillance Unit, Santa Maria delle Scotte Hospital, V.le Bracci, 1 53100 Siena, Italy; (S.F.); (G.B.M.); (D.O.); (G.B.)
- Correspondence: ; Tel.: +39-0577-233871
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Seroprevalence of IgG antibodies against measles in a selected Polish population - do we need to be re-vaccinated? Cent Eur J Immunol 2020; 44:380-383. [PMID: 32140049 PMCID: PMC7050052 DOI: 10.5114/ceji.2019.92789] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 09/09/2019] [Indexed: 11/17/2022] Open
Abstract
Introduction Measles is highly contagious, but preventable viral disease. Its outbreaks appear all over the world, and decreasing herd immunity excludes its elimination. High levels of IgG antibodies against a virus efficiently protects against infection. Aim of this study To assess the seroprevalence of anti-measles IgG in the serum of patients at different age levels tested for measles IgG at our laboratory. Material and methods The study was conducted from March to June of 2019. Retrospective analysis included results for measles-specific IgG from 364 tested patients. The age of enrolled subjects ranged from four months to 101 years, with a median age of 46, and a mean age of 43 ±18. Quantification of anti-measles IgG was performed using indirect chemiluminescence immunoassays on the DiaSorin Liaison® automated analyzer. Results Our results showed a seropositivity ratio of 78.02%. The lowest number of seropositive subjects was in the group of infants (0-1 years old), with a ratio of 53.85%, and the group of adults of 19-38 years old at 55.68%. The group of the oldest patients (70-101 years old) had the highest ratio of seropositive subjects (100%), while adults of 60-69 years old had a seropositivity ratio of 97.22%. Conclusions These data suggest that the group of young adults who were vaccinated with one or two doses of MMR vaccine in childhood are the most susceptible for infection, and when working in contact with other people, should be re-vaccinated for protection against measles.
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Yan R, He H, Zhou Y, Xie S, Deng X, Tang X. Study on factors associated with seroprotection after measles vaccination in children of 6–14 years in Eastern China. Vaccine 2019; 37:5185-5190. [DOI: 10.1016/j.vaccine.2019.07.075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 07/02/2019] [Accepted: 07/23/2019] [Indexed: 12/16/2022]
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Cilleruelo MJ, Fernández-García A, Villaverde S, Echevarría J, Marín MÁ, Sanz JC, López A, Royuela A, Antoran BR, de Ory F. Duration of immunity to measles, rubella and mumps during the first year of life. Vaccine 2019; 37:4164-4171. [DOI: 10.1016/j.vaccine.2019.05.056] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 05/13/2019] [Accepted: 05/19/2019] [Indexed: 11/17/2022]
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Chong KC, Hu P, Lau S, Jia KM, Liang W, Wang MH, Zee BCY, Sun R, Zheng H. Monitoring the age-specificity of measles transmissions during 2009-2016 in Southern China. PLoS One 2018; 13:e0205339. [PMID: 30296273 PMCID: PMC6175510 DOI: 10.1371/journal.pone.0205339] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 09/24/2018] [Indexed: 12/19/2022] Open
Abstract
Background Despite several immunization efforts, China saw a resurgence of measles in 2012. Monitoring of transmissions of individuals from different age groups could offer information that would be valuable for planning adequate disease control strategies. We compared the age-specific effective reproductive numbers (R) of measles during 2009–2016 in Guangdong, China. Methods We estimated the age-specific R values for 7 age groups: 0–8 months, 9–18 months, 19 months to 6 years, 7–15 years, 16–25 years, 26–45 years, and ≥46 years adapting the contact matrix of China. The daily numbers of laboratory and clinically confirmed cases reported to the Center for Disease Control and Prevention of Guangdong were used. Results The peak R values of the entire population were above unity from 2012 to 2016, indicating the persistence of measles in the population. In general, children aged 0–6 years and adults aged 26–45 years had larger values of R when comparing with other age groups after 2012. While the peaks of R values for children aged 0–6 years dropped steadily after 2013, the peaks of R values for adults aged 26–45 years kept at a high range every year. Conclusions Although the provincial supplementary immunization activities (SIAs) conducted in 2009 and 2010 were able to reduce the transmissions from 2009 to 2011, larger values of R for children aged 0–6 years were observed after 2012, indicating that the benefits of the SIAs were short-lived. In addition, the transmissions from adults aged between 26 and 45 years increased over time. Disease control strategies should target children and adult groups that carry high potential for measles transmission.
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Affiliation(s)
- Ka Chun Chong
- JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
- Clinical Trials and Biostatistics Laboratory, Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - Pei Hu
- Center for Disease Control and Prevention of Guangdong Province, Guangzhou, China
| | - Steven Lau
- JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Katherine Min Jia
- JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Wenjia Liang
- Center for Disease Control and Prevention of Guangdong Province, Guangzhou, China
| | - Maggie Haitian Wang
- JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
- Clinical Trials and Biostatistics Laboratory, Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - Benny Chung Ying Zee
- JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
- Clinical Trials and Biostatistics Laboratory, Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - Riyang Sun
- JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
- * E-mail: (HZ); (RS)
| | - Huizhen Zheng
- Center for Disease Control and Prevention of Guangdong Province, Guangzhou, China
- * E-mail: (HZ); (RS)
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Screening of more than 2000 Hungarian healthcare workers' anti-measles antibody level: results and possible population-level consequences. Epidemiol Infect 2018; 147:e7. [PMID: 30201057 PMCID: PMC6518749 DOI: 10.1017/s0950268818002571] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Due to the European measles epidemic and the increased number of imported cases, it can be theorised that the risk of exposure among Hungarian healthcare workers (HCWs) has increased. In 2017, the increased measles circulation in the region led to the emergence of smaller local and hospital epidemics. Therefore, our objective was to determine the herd immunity in the high-risk group of HCWs. A hospital-based study of detecting anti-measles IgG activity was performed in 2017 and included 2167 employees of the Military Medical Centre (Hungary). The screening of HCWs presented a good general seropositivity (90.6%). The highest seroprevalence value (99.1%) was found in the age group of 60 years or older. The lowest number of seropositive individuals was seen in the 41-45 years (86.2%) age group, indicating a significant herd immunity gap between groups. Regarding the Hungarian data, there might be gaps in the seroprevalence of the analysed HCWs, implying that susceptible HCWs may generate healthcare-associated infections. This study suggests that despite the extensive vaccination and high vaccine coverage, it is still important to monitor the level of protective antibodies in HCWs, or in a representative group of the whole population of Hungary, and possibly in other countries as well.
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Donzelli A, Schivalocchi A, Giudicatti G. Non-specific effects of vaccinations in high-income settings: How to address the issue? Hum Vaccin Immunother 2018; 14:2904-2910. [PMID: 30019990 PMCID: PMC6343628 DOI: 10.1080/21645515.2018.1502520] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
“Non-specific effects” of vaccines go beyond the specific protective effects against the targeted diseases. They, if real, could theoretically be beneficial, neutral or negative. This article intends to answer the following questions:
Do the non-specific effects of vaccines exist? Almost certainly yes, and they can be important in low-income countries Are non-specific effects also present in high-income countries? At least to some extent, it seems quite logical Can non-specific effects be systematically identified by the current systems of side effects/unintended reactions monitoring? Most likely not Could the Institute of Medicine proposals and some ongoing attempts solve the issue? It seems unlikely Could there be better, feasible and ethically acceptable ways to achieve the aforementioned objective?
A proposal is presented about this issue, with the potential both to solve the problem with the most valid methods, and to overcome the ethical problems that have so far precluded the adoption of RCTs to study possible vaccine non-specific effects, monitored by long follow-up.
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Affiliation(s)
- Alberto Donzelli
- a Member of the Board of Foundation , Consiglio direttivo Fondazione Allineare Sanità e Salute , Milano , Italy
| | - Alessandro Schivalocchi
- b Department of Medicine, Resident in Hygiene, Public Health and Preventive Medicine , University of Milan , Bicocca Milano , Italy
| | - Giulia Giudicatti
- b Department of Medicine, Resident in Hygiene, Public Health and Preventive Medicine , University of Milan , Bicocca Milano , Italy
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Pei L, Yang Y, Zhao X, Zhang S, Yuan L, Liu Y, Yu Y. Identify the susceptibility profile to measles in the general population: Serological survey of measles antibodies in Shaanxi province, China, in 2016. Vaccine 2017; 35:7250-7255. [PMID: 29153585 DOI: 10.1016/j.vaccine.2017.11.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 09/17/2017] [Accepted: 11/07/2017] [Indexed: 12/12/2022]
Abstract
The reported coverage with two doses of the measles vaccine (MCV) in Shaanxi Province, China, is greater than 95%, but the measles incidence over the whole province remains high. Cross-sectional serological surveys of measles antibodies in Shaanxi Province were conducted in 2016 to assess the population's immunity. The measles IgG levels were measured in serum samples using ELISA. The geometric means concentration (GMC) levels and seroprevalence rates with 95% CIs were calculated by region, gender, and age. A total of 3574 serum samples were collected from participants aged from 2 months to 49 years. The GMC of measles antibodies was 471.3 mIU/ml (95% CI: 445.9-498.2 mIU/ml), and the seroprevalence was only 85.9% (95% CI: 84.8-87.1%). A significant difference in the GMC (P < .05) but not the seroprevalence (P > .05) was observed among the 3 regions. The report measles incidences were high in individuals aged 0-7 months (33.2/100 000) and 8-17 months (26.8/100 000). Although both measles immunity (90.7%) and MCV coverage (89.7%) were low in children aged 8-17 months, the measles seroprevalence in adults was high at greater than 90%. These results revealed that further actions may be taken to increase vaccination coverage in children aged 8 months to 5 years over the whole province and teenagers in the south region. In particular, timely administration of the first MCV dose should be emphasized to prevent measles epidemics in children aged 8-17 months. Vaccination strategies may be varied by age and region.
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Affiliation(s)
- Lin Pei
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China; Northwest Women's and Children's Hospital, Xi'an, Shaanxi 710003, China
| | - Yuxuan Yang
- Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Xiaodan Zhao
- Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Shaobai Zhang
- Shaanxi Province Center for Disease Control and Prevention, Xi'an, Shaanxi 710054, China
| | - Lingyun Yuan
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China; Ankang Center for Disease Control and Prevention, An Kang, Shaanxi 725000, China
| | - Yamei Liu
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China; Yulin Center for Disease Control and Prevention, Yu Lin, Shaanxi 719000, China
| | - Yan Yu
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China.
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An increasing, potentially measles-susceptible population over time after vaccination in Korea. Vaccine 2017; 35:4126-4132. [PMID: 28669617 DOI: 10.1016/j.vaccine.2017.06.058] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 06/16/2017] [Accepted: 06/18/2017] [Indexed: 11/21/2022]
Abstract
BACKGROUND In Korea, measles occurs mainly in infants <12months of age, who are unvaccinated. In addition, vaccine populations, including adolescents and young adults, can become infected though importation. Thus, the question arises whether the current level of herd immunity in Korea is now insufficient for protecting against measles infection. METHODS Age-specific measles seroprevalence was evaluated by performing enzyme immunoassays and plaque reduction-neutralization tests on 3050 subjects aged 0-50years (birth cohort 1964-2014) and 480 subjects aged 2-30years (birth cohort 1984-2012). RESULTS The overall seropositivity and measles antibody concentrations were 71.5% and 1366mIU/mL, respectively. Progressive decline in antibody levels and seropositivity were observed over time after vaccination in infants, adolescents, and young adults. The accumulation of potentially susceptible individuals in the population was confirmed by comparing data from 2010 and 2014 seroprevalence surveys. The statistical correlation between measles incidence and measles seronegativity was determined. CONCLUSIONS Waning levels of measles antibodies with increasing time post-vaccination suggests that measles susceptibility is potentially increasing in Korea. This trend may be related to limitations of vaccine-induced immunity in the absence of natural boosting by the wild virus, compared to naturally acquired immunity triggered by measles infection. This study provides an important view into the current measles herd immunity in Korea.
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