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Owusu M, Adu E, Kalu LE, Martey E, Acheampong G, Enimil A, Appiah JA, Badu-Peprah A, Sylverken J, Sylverken AA, Nguah SB, Westeel E, Pouzol S, Drosten C, Adu-Sarkodie Y. Aetiological agents of pneumonia among HIV and non-HIV infected children in Ghana: A case-control study. PLoS One 2024; 19:e0299222. [PMID: 38517865 PMCID: PMC10959341 DOI: 10.1371/journal.pone.0299222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 02/05/2024] [Indexed: 03/24/2024] Open
Abstract
Pneumonia is the leading cause of death in children, however, the microbial aetiology of pneumonia is not well elucidated in low- and middle-income countries. Our study was aimed at determining the microbial aetiologies of childhood pneumonia and associated risk factors in HIV and non-HIV infected children. We conducted a case-control study that enrolled children with pneumonia as cases and non-pneumonia as controls from July 2017 to May 2020. Induced sputum and blood samples were investigated for microbial organisms using standard microbiological techniques. DNA/RNA was extracted from sputum samples and tested for viral and bacterial agents. Four hundred and four (404) subjects consisting of 231 (57.2%) cases and 173 (42.8%) controls were enrolled. We identified a significant (p = 0.011) proportion of viruses in cases (125; 54.1%, 95%CI: 47.4-60.7) than controls (71; 33.6%, 95%CI: 33.6-48.8) and these were mostly contributed to by Respiratory Syncytial Virus. Staphylococcus aureus (16; 4.0%), Klebsiella spp. (15, 3.7%) and Streptococcus pneumoniae (8, 2.0%) were the main bacterial agents identified in sputum or induced sputum samples. HIV infected children with viral-bacterial co-detection were found to have very severe pneumonia compared to those with only viral or bacterial infection. Indoor cooking (OR = 2.36; 95%CI:1.41-3.96) was found to be associated with pneumonia risk in patients. This study demonstrates the importance of various microbial pathogens, particularly RSV, in contributing to pneumonia in HIV and non-HIV paediatric populations. There is a need to accelerate clinical trials of RSV vaccines in African populations to support improvement of patient care.
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Affiliation(s)
- Michael Owusu
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
- Department of Medical Diagnostics, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Eric Adu
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | - Lotenna Elsie Kalu
- Department of Child Health, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Eugene Martey
- Department of Child Health, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | | | - Anthony Enimil
- Department of Child Health, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - John Adabie Appiah
- Department of Child Health, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | | | - Justice Sylverken
- Department of Child Health, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Augustina Angelina Sylverken
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
- Department of Theoretical and Applied Biology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Samuel Blay Nguah
- Department of Child Health, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | | | | | | | - Yaw Adu-Sarkodie
- Department of Clinical Microbiology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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Hassan MZ, Islam MA, Shoshi HR, Hossain MK, Shirin T, Chowdhury F. Characterizing deaths among adult patients with severe acute respiratory infection: during the pre- and COVID-19 pandemic periods in Bangladesh, 2018-2022. Trop Med Health 2023; 51:70. [PMID: 38115037 PMCID: PMC10729565 DOI: 10.1186/s41182-023-00565-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 12/11/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND Severe acute respiratory infection (SARI) is a leading cause of mortality globally, peaking during the COVID-19 pandemic. We analyzed SARI-associated deaths during the pre-and-pandemic periods in Bangladesh to identify the contributing factors. METHODS We analyzed data from hospital-based influenza surveillance at nine tertiary-level hospitals in Bangladesh. We considered March 2018-February 2020 as the pre-pandemic period and March 2020-February 2022 as the pandemic period and included adult (≥ 18 years) participants in our study. Surveillance physicians identified WHO-SARI case definition meeting inpatients and collected demographics, clinical characteristics, and outcomes at hospital discharge and 30 days post-discharge. We performed rRT-PCR for influenza and SARS-CoV-2 viruses on collected nasopharyngeal and oropharyngeal swabs. We used multivariable Cox's regression models to calculate the hazard ratio (HR) for factors associated with SARI deaths in these adult patients. RESULTS We enrolled 4392 SARI patients during the pre-pandemic and 3824 SARI patients during the pandemic period. Case fatality ratio was higher during the pandemic: 13.62% (521) [in-hospital: 6.45% (247); post-discharge: 7.17% (274)] compared to pre-pandemic, 6.01% (264) [in-hospital: 2.01% (89), post-discharge: 4% (175)] (p < 0.001). Pre-pandemic, influenza was detected in 14% (37/264) of SARI deaths. Influenza was detected during the pandemic in 2.3% (12/521), SARS-CoV-2 in 41.8% (218/521), and both viruses in only one SARI death. History of smoking and the presence of 1 or more co-morbid conditions independently attributed to SARI deaths in adults in the pre-pandemic period. SARI deaths in such patients were also associated with respiratory difficulties on admission in both pre-pandemic (aHR 2.36; 95% CI:1.65-3.36) and pandemic period (aHR 2.30; 95% CI: 1.57-3.35) after accounting for age, sex, smoking status, presence of 1 or more co-morbid conditions, and detection of influenza and SARS-CoV-2 viruses. CONCLUSIONS During the pandemic, SARI mortality increased; influenza-associated mortality declined, and SARS-CoV-2 caused over a third of SARI deaths. Post-discharge mortality was higher than in-hospital mortality during both periods. Limiting premature discharge and strengthening post-discharge monitoring and nursing services could reduce unexpected deaths. Formative research to better understand post-discharge mortality is essential to reduce SARI deaths.
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Affiliation(s)
- Md Zakiul Hassan
- Programme for Emerging Infections, Infectious Disease Division, International Centre for Diarrhoeal Disease Research, Bangladesh (Icddr,b), Mohakhali, Dhaka, Bangladesh.
| | - Md Ariful Islam
- Programme for Emerging Infections, Infectious Disease Division, International Centre for Diarrhoeal Disease Research, Bangladesh (Icddr,b), Mohakhali, Dhaka, Bangladesh
| | - Homayra Rahman Shoshi
- Programme for Emerging Infections, Infectious Disease Division, International Centre for Diarrhoeal Disease Research, Bangladesh (Icddr,b), Mohakhali, Dhaka, Bangladesh
| | - Md Kamal Hossain
- Programme for Emerging Infections, Infectious Disease Division, International Centre for Diarrhoeal Disease Research, Bangladesh (Icddr,b), Mohakhali, Dhaka, Bangladesh
| | - Tahmina Shirin
- Institute of Epidemiology, Disease Control and Research (IEDCR), Dhaka, Bangladesh
| | - Fahmida Chowdhury
- Programme for Emerging Infections, Infectious Disease Division, International Centre for Diarrhoeal Disease Research, Bangladesh (Icddr,b), Mohakhali, Dhaka, Bangladesh
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Mohanty M, Mishra B, Satapathy AK, Gulla KM, Das RR, Dwibedi B, Gupta K, Mamidi P, Panda S. Human Bocavirus infection in childhood acute respiratory infection: Is it an innocent bystander? Indian J Med Microbiol 2023; 46:100436. [PMID: 37945128 DOI: 10.1016/j.ijmmb.2023.100436] [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: 04/19/2023] [Revised: 07/08/2023] [Accepted: 07/20/2023] [Indexed: 09/18/2023]
Abstract
PURPOSE Acute respiratory infection (ARI) is one of the major attributing factors of under-five mortality and morbidity all over the world. Viruses are the most common cause of ARI. Due to the availability of molecular techniques, new viruses are getting isolated from children with ARI. With the above background, the present study was conducted to enlighten on the pathogenic role of human bocavirus (HBoV) in children with ARI. METHODOLOGY This retrospective study was conducted over a period of >3 years duration. The clinical and laboratory data of the patients with signs and symptoms of ARI were retrieved and analyzed. Clinical profiles and outcome of the patients detected of having HBoV mono or co-infections were further analyzed in details. RESULTS A total of 237 respiratory samples were subjected to respiratory panel by fast track diagnosis (FTD) multiplex polymerase chain reaction (multiplex PCR), of which 10 samples (mono-infection = 4) were detected with the presence of HBoV. The clinical details of 8 cases were studied in details (details of rest 2 cases were missing). All the children were less than 3 years of age, with different co-morbid conditions such as low birth weight (n = 4), cholestatic jaundice (n = 1), operated case of congenital diaphragmatic hernia (n = 1), pancytopenia (n = 1), and primary immune deficiency (n = 1). Their clinical course did not improve following antibiotic administration, 2 succumbed to death while the rest 6 cases were discharged. CONCLUSION The present study highlights the fact that HBoV may not be an innocent bystander in the childhood ARI. Larger studies employing appropriate diagnostic modalities are needed to emboss it as a true pathogen and not merely a bystander.
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Affiliation(s)
- Monalisa Mohanty
- Department of Microbiology, All India Institute of Medical Sciences, Bhubaneswar, 751019, Odisha, India.
| | - Baijayantimala Mishra
- Department of Microbiology, All India Institute of Medical Sciences, Bhubaneswar, 751019, Odisha, India.
| | - Amit Kumar Satapathy
- Department of Pediatrics, All India Institute of Medical Sciences, Bhubaneswar, 751019, Odisha, India.
| | - Krishna Mohan Gulla
- Department of Pediatrics, All India Institute of Medical Sciences, Bhubaneswar, 751019, Odisha, India.
| | - Rashmi Ranjan Das
- Department of Pediatrics, All India Institute of Medical Sciences, Bhubaneswar, 751019, Odisha, India.
| | - Bhagirathi Dwibedi
- Department of Pediatrics, All India Institute of Medical Sciences, Bhubaneswar, 751019, Odisha, India.
| | - Kavita Gupta
- Department of Microbiology, All India Institute of Medical Sciences, Bhubaneswar, 751019, Odisha, India.
| | - Prabhudutta Mamidi
- Department of Microbiology, All India Institute of Medical Sciences, Bhubaneswar, 751019, Odisha, India.
| | - Sailendra Panda
- Department of Microbiology, All India Institute of Medical Sciences, Bhubaneswar, 751019, Odisha, India.
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Saha R, Majumdar A, Chaudhuri RD, Chatterjee A, Lo M, Dutta S, Chawla-Sarkar M. Molecular epidemiology of circulating human adenoviruses among acute respiratory infection patients seeking healthcare facilities in West Bengal, India. Virology 2023; 588:109912. [PMID: 37913611 DOI: 10.1016/j.virol.2023.109912] [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: 08/22/2023] [Revised: 10/10/2023] [Accepted: 10/16/2023] [Indexed: 11/03/2023]
Abstract
Human adenovirus (HAdV) causes acute respiratory infections leading to mortality in children. This study analyzes the circulating respiratory HAdV genotypes in West Bengal, India during 2018-2022 among symptomatic patients. The overall positivity rate was 6.8%, out of which 26.4% were co-infected with other respiratory viruses. Children aged 2 to 5 years were mostly infected. Phylogenetic analysis revealed that the recombinant HAdV-B type 7/3, which has remarkable outbreak potential, predominantly circulated in this region followed by the non-recombinant HAdV-B type 3/3. Moreover, the amino acid sequences encoded by both the hexon and fiber genes of these two circulating strains possessed a few mutations that mostly diverged from the prototype strain, although the divergence was less pronounced in case of the amino acids encoded by the fiber gene of HAdV-B type 3/3. Overall, the results underscore the need for continuous surveillance of respiratory HAdV types to combat future possible epidemics.
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Affiliation(s)
- Ritubrita Saha
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, West Bengal, India
| | - Agniva Majumdar
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, West Bengal, India
| | - Ratul Datta Chaudhuri
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, West Bengal, India
| | - Ananya Chatterjee
- Regional Virus Research and Diagnostic Laboratory, ICMR-National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, West Bengal, India
| | - Mahadeb Lo
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, West Bengal, India
| | - Shanta Dutta
- Regional Virus Research and Diagnostic Laboratory, ICMR-National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, West Bengal, India
| | - Mamta Chawla-Sarkar
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, West Bengal, India.
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Kumar A, Bahal A, Singh L, Ninawe S, Grover N, Suman N. Utility of multiplex real-time PCR for diagnosing paediatric acute respiratory tract infection in a tertiary care hospital. Med J Armed Forces India 2023; 79:286-291. [PMID: 37193516 PMCID: PMC10182280 DOI: 10.1016/j.mjafi.2021.05.007] [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: 05/17/2020] [Accepted: 05/05/2021] [Indexed: 11/30/2022] Open
Abstract
Background Acute respiratory infections (ARIs) are responsible for considerable morbidity and mortality among children all over the world. Many of the etiologic agents of the infections especially viral go undiagnosed for lack of requisite facility and the cost factors. We have used a commercially available platform for diagnosis of ARIs in children receiving inpatient and outpatient services in a tertiary care centre. Methods The framework of the study was prospective and observational. In this study, clinical samples of children suffering from ARIs were subjected to real-time multiplex PCR targeting both viral and bacterial pathogens. Results Of 94 samples received at our centre (49 male and 45 female), the positivity for respiratory pathogens was detected in 50 (53.19%) samples. Clinical symptoms of patients and age distribution have been elaborated in text. A single pathogen (n = 29/50), two pathogens (15/50) and three pathogens (n = 6/50) were detected by multiplex RT-PCR. Of 77 isolates detected, maximum numbers were of human rhinovirus (HRV) (n = 14) (18.18%) Streptococcus pneumoniae (n = 14) (18.18%) followed by Staphylococcus aureus (n = 10) (12.98%). Conclusion The epidemiology of ARIs considering viral etiologies is poorly understood due to less number of studies especially in Indian subcontinent. The advent of latest advanced molecular methods has made it possible to identify common respiratory pathogens and has contributed to cover the gap in existing knowledge.
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Affiliation(s)
- Anshu Kumar
- Graded Specialist (Microbiology), Command Hospital (Western Command), Chandimandir, India
| | - Ashish Bahal
- Classified Specialist (Path & Micro) Army Hospital (R&R), Delhi Cantt, India
| | - Lavan Singh
- Classified Specialist (Path & Micro) Army Hospital (R&R), Delhi Cantt, India
| | - S.M. Ninawe
- Graded Specialist (Microbiology), Army Hospital (R&R), Delhi Cantt, India
| | - Naveen Grover
- Senior Adviser (Path & Micro), Army Hospital (R&R), Delhi Cantt, India
| | - Neha Suman
- Graded Specialist (ENT), Command Hospital (Western Command), Chandimandir, India
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Mohamed AM, Al Sayyad A, Matar E, Isa HM, Hasan WF, Hashim NSJY, Alajaimi BA, Aldolabi Q. Factors associated with poor outcomes in patients with severe acute respiratory infections in Bahrain. Influenza Other Respir Viruses 2023; 17:e13133. [PMID: 37123813 PMCID: PMC10133729 DOI: 10.1111/irv.13133] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/24/2023] [Accepted: 03/30/2023] [Indexed: 05/02/2023] Open
Abstract
Background Severe acute respiratory tract infection (SARI) is a major global health threat. This study aimed to examine risk factors associated with poor outcomes in patients with SARI. Methods All patients who met World Health Organization's (WHO) SARI case definition and were admitted to Salmaniya Medical Complex from January 2018 to December 2021 were included. Epidemiological and virological data were obtained and analyzed. Results Of 1159 patients with SARI included, 731 (63.1%) patients were below 50 years, and 357 (30.8%) tested positive for viral pathogens. The most prevalent virus was Flu-A (n = 134, 37.5%), SARS-CoV2 (n = 118, 33%), RSV (n = 51, 14.3%), Flu B (n = 49,13.7%), other viruses (n = 3, 0.8%), and combined infection (n = 2, 0.6%). Six hundred fifty-eight (56.8%) patients had comorbidities, mainly diabetes (n = 284, 43%) and heart disease (n = 217, 33%). 183 (16%) patients were admitted to ICU, 110 (9%) needed mechanical ventilation, and 80 (7%) patients died.The odds of ICU admission were higher for patients with hematological (OR 5.9, 95% CI 3.1-11.1) and lung diseases (OR 2.7, 95% CI 1.6-4.6). The odds of mechanical ventilation were higher among patients with lung disease (OR 3.1, 95% 1.7-5.5). The mortality odds were higher among patients above 50 (OR 2.4, 95% CI 1.4-4.1) and chronic kidney disease (OR 2.5, 95% CI 1.1-5.2). Conclusions Being 50 years or above or having kidney, lung, or heart diseases was associated with worse SARI outcomes. Efforts and actions in developing better strategies to vaccinate individuals at high risk and early diagnosis and treatment should help in reducing the burden of SARI.
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Affiliation(s)
- Afaf Merza Mohamed
- Consultant Family Medicine & Public HealthMinistry of HealthManamaBahrain
| | - Adel Al Sayyad
- Consultant Family Medicine, Epidemiology & Public Health, Chief of Disease Control Section, Ministry of Health. Associate Prof. of Family and Community MedicineCMMS, AGUManamaBahrain
| | - Ebrahim Matar
- Medical Intern, Eastern Health ClusterDammamSaudi Arabia
| | - Hasan M. Isa
- Consultant Pediatric Gastroenterologist, Pediatric DepartmentSalmaniya Medical Complex, Arabian Gulf UniversityManamaBahrain
| | | | | | | | - Qatrmeer Aldolabi
- Public Health Specialist (PHS), Disease Control SectionMinistry of HealthManamaBahrain
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Ogunbayo AE, Mogotsi MT, Sondlane H, Nkwadipo KR, Sabiu S, Nyaga MM. Pathogen Profile of Children Hospitalised with Severe Acute Respiratory Infections during COVID-19 Pandemic in the Free State Province, South Africa. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph191610418. [PMID: 36012053 PMCID: PMC9408356 DOI: 10.3390/ijerph191610418] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 08/10/2022] [Accepted: 08/17/2022] [Indexed: 05/30/2023]
Abstract
Severe acute respiratory infections (SARI) contribute to mortality in children ≤5 years. Their microbiological aetiologies are often unknown and may be exacerbated in light of coronavirus disease 19 (COVID-19). This study reports on respiratory pathogens in children ≤5 years (n = 84) admitted with SARI during and between the second and third waves of COVID-19 infection in South Africa. Nasopharyngeal/oropharyngeal swabs collected were subjected to viral detection using QIAstat-Dx® Respiratory SARS-CoV-2 Panel. The results revealed viral positivity and negativity detection rates of 88% (74/84) and 12% (10/84), respectively. Of the 21 targeted pathogens, human rhinovirus/enterovirus (30%), respiratory syncytial virus (RSV; 26%), and severe acute respiratory syndrome coronavirus 2 (24%) were mostly detected, with other viruses being 20% and a co-infection rate of 64.2% (54/84). Generally, RSV-positive samples had lower Ct values, and fewer viruses were detected during the third wave. Changes in the circulation patterns of respiratory viruses with total absence of influenza virus could be attributed to measures against COVID-19 transmission, which may result in waned immunity, thereby increasing susceptibility to severe infections in the following season. High viral co-infection rate, as detected, may complicate diagnosis. Nonetheless, accurate identification of the pathogens may guide treatment decisions and infection control.
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Affiliation(s)
- Ayodeji E. Ogunbayo
- Next Generation Sequencing Unit and Division of Virology, Faculty of Health Sciences, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa
| | - Milton T. Mogotsi
- Next Generation Sequencing Unit and Division of Virology, Faculty of Health Sciences, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa
| | - Hlengiwe Sondlane
- Next Generation Sequencing Unit and Division of Virology, Faculty of Health Sciences, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa
| | - Kelebogile R. Nkwadipo
- Next Generation Sequencing Unit and Division of Virology, Faculty of Health Sciences, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa
| | - Saheed Sabiu
- Department of Biotechnology and Food Science, Durban University of Technology, P.O. Box 1334, Durban 4000, South Africa
| | - Martin M. Nyaga
- Next Generation Sequencing Unit and Division of Virology, Faculty of Health Sciences, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa
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Chandy S, Manoharan A, Hameed A, Jones LK, S Nachiyar G, Ramya M, Sudhakar A, A S, Balasubramanian S. A study on pediatric respiratory tract infections in hospitalised children from Chennai. CLINICAL EPIDEMIOLOGY AND GLOBAL HEALTH 2022. [DOI: 10.1016/j.cegh.2022.101067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Hindupur A, Menon T, Dhandapani P. Molecular investigation of human metapneumovirus in children with acute respiratory infections in Chennai, South India, from 2016-2018. Braz J Microbiol 2022; 53:655-661. [PMID: 35118597 PMCID: PMC9151977 DOI: 10.1007/s42770-022-00689-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 01/28/2022] [Indexed: 02/06/2023] Open
Abstract
Human metapneumovirus (hMPV) has emerged as a frequent cause of acute respiratory infections (ARI) among young children. The prevalence and genetic diversity of hMPV circulating in Chennai, Southern India, has not been studied yet. Hence, this study was aimed to investigate the prevalence, co-infection with other respiratory viruses like HRSV A and B, influenza A and B, hRV and HPIV 1-4 viruses, socio-demographic associations, and genotypes of hMPV among children in Chennai. A total of 350 nasal swab specimens were collected from children with ARI during April 2016 to August 2018 and tested for hMPV by real time PCR method. In this study, hMPV was detected in 4% (14/350) of the samples. One hMPV positive sample was found to be co-infected with influenza B virus. The mean and median ages of the children with hMPV infection were 61.5 months (5.1 years) and 83 months (6.9 years), respectively. Phylogenetic analysis of the partial F gene revealed the presence of A2c subcluster among the study strains as well as with B1 and B2 lineages. The prevalence data obtained in this study is important in evaluating the role of hMPV in childhood ARI and emphasizes the importance of routine viral diagnosis in hospitals. To the best of our knowledge, this is the first study to report the prevalence, seasonality, and genetic diversity of hMPV in Chennai as well as the first study to report A2c subcluster of hMPV among children in India.
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Affiliation(s)
- Anusha Hindupur
- grid.413015.20000 0004 0505 215XDepartment of Microbiology, Dr. ALM Post Graduate Institute of Basic Medical Sciences, University of Madras, Chennai, Tamil Nadu India
| | - Thangam Menon
- Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu India
| | - Prabu Dhandapani
- grid.413015.20000 0004 0505 215XDepartment of Microbiology, Dr. ALM Post Graduate Institute of Basic Medical Sciences, University of Madras, Chennai, Tamil Nadu India
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Association between Handwashing Behavior and Infectious Diseases among Low-Income Community Children in Urban New Delhi, India: A Cross-Sectional Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182312535. [PMID: 34886261 PMCID: PMC8657428 DOI: 10.3390/ijerph182312535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/20/2021] [Accepted: 11/23/2021] [Indexed: 01/02/2023]
Abstract
Diarrheal diseases and respiratory infections (RI) are two leading causes of childhood mortality in low and middle-income countries. Effective handwashing at critical time-points may mitigate these diseases. However, there is a lack of published data investigating this association in school-aged children in India. This study is part of a larger prospective handwashing intervention study in a low-income community in New Delhi, India examining the associations between handwashing behavior and diarrhea and RI in schoolchildren. This current study reports the findings of the baseline survey administered to 272 mother–child dyads. Children aged 8–12 years, and their mothers, were recruited from six schools. A baseline questionnaire was used to collect sociodemographic data, handwash behavior, and mother-reported recent diarrhea and RI incidence among the children. Handwashing before and after preparing food, after defecation, and after cleaning dishes significantly reduced the odds of diarrhea by over 70%, and of RI by over 56%. Using a clean cloth after handwashing lowered odds of diarrhea and RI by 72% and 63% respectively. Around 60% of the participants believed that handwashing could prevent diarrhea and RI in their children. There was a low prevalence of handwashing at critical time-points and a poor perception regarding handwashing benefits. To improve handwashing behavior, hygiene promotion programs need to understand what motivates and hinders handwashing in vulnerable populations.
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Sabharwal S, Datta S, Wattal C, Sachdeva A. A prospective study of prevalence of respiratory viruses causing acute respiratory infection in pediatric in-patients during pre- COVID times. Indian J Med Microbiol 2021; 39:429-433. [PMID: 34556348 DOI: 10.1016/j.ijmmb.2021.09.003] [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: 06/14/2021] [Revised: 09/04/2021] [Accepted: 09/06/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE To find out the prevalence of respiratory viruses causing Acute Respiratory Infection in pediatric in-patients during Pre-COVID times. METHODS Nasal swabs were collected from children in the age group of 1 month-16 years who were admitted at our hospital with Acute Respiratory Infection. Samples were subjected to nucleic acid extraction and Real time polymerase chain reaction to detect 16 RNA viruses and 2 DNA viruses. The results were interpreted in context of most prevalent viruses detected, their seasonal distribution, co-infecting viruses, co-morbidities in patients with effect thereof and use and effect of antibiotics in those positive for viral etiology. RESULTS Of the 250 children recruited in the study, viral pathogen was detected in 74% cases. RSV was the most common virus detected with 36.2% positivity (92/254) followed by rhino/entero (19.2%, 49/254), PIV 1,2,3,4 (9.4%, 24/254), Influenza A,B,C (8.2%, 21/254), adenovirus & HBoV (6.2%, 16/254), coronavirus HKU1, NL63, OC43, 229E (4.3%, 11/254), H1N1 (4.7%, 12/254) and hMPV (0.7%, 2/254). Co-infection with 2 or more viruses was seen in 34% cases. Among the cases on whom antibiotics were started, they were withdrawn following test results in 42.3% of the cases. CONCLUSION The prevalence of viral etiology is high amongst children especially ≤2 years. RSV, rhino/enterovirus, PIV 1,2,3,4 and Influenza virus were more prevalent than others. Rapid, early detection of virus with multiplex PCR will help in early cohorting of the patients thus reducing nosocomial spread of these viruses and prevent injudicious use of antibiotics.
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Affiliation(s)
- Sukriti Sabharwal
- Department of Clinical Microbiology, Sir Ganga Ram Hospital, New Delhi, India
| | - Sanghamitra Datta
- Department of Clinical Microbiology, Sir Ganga Ram Hospital, New Delhi, India
| | - Chand Wattal
- Department of Clinical Microbiology, Sir Ganga Ram Hospital, New Delhi, India.
| | - Anil Sachdeva
- Department of Pediatrics, Sir Ganga Ram Hospital, New Delhi, India
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12
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Waghmode R, Jadhav S, Nema V. The Burden of Respiratory Viruses and Their Prevalence in Different Geographical Regions of India: 1970-2020. Front Microbiol 2021; 12:723850. [PMID: 34531842 PMCID: PMC8438434 DOI: 10.3389/fmicb.2021.723850] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 07/31/2021] [Indexed: 11/13/2022] Open
Abstract
As per the 2019 report of the National Health Portal of India, 41,996,260 cases and 3,740 deaths from respiratory infections were recorded across India in 2018. India contributes to 18% of the global population, with severe acute respiratory infection (SARI) as one of the prominent causes of mortality in children >5 years of age. Measures in terms of the diagnosis and surveillance of respiratory infections are taken up globally to discover their circulating types, detect outbreaks, and estimate the disease burden. Similarly, the purpose of this review was to determine the prevalence of respiratory infections in various regions of India through published reports. Understanding the pattern and prevalence of various viral entities responsible for infections and outbreaks can help in designing better strategies to combat the problem. The associated pathogens comprise respiratory syncytial virus (RSV), rhinovirus, influenza virus, parainfluenza virus, adenovirus, etc. Identification of these respiratory viruses was not given high priority until now, but the pandemic of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has sensitized our system to be alert about the burden of existing infections and to have proper checks for emerging ones. Most of the studies reported to date have worked on the influenza virus as a priority. However, the data describing the prevalence of other respiratory viruses with their seasonal pattern have significant epidemiological value. A comprehensive literature search was done to gather data from all geographical regions of India comprising all states of India from 1970 to 2020. The same has been compared with the global scenario and is being presented here.
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Affiliation(s)
- Rushabh Waghmode
- Division of Molecular Biology, ICMR-National AIDS Research Institute, Pune, India
| | - Sushama Jadhav
- Division of Molecular Biology, ICMR-National AIDS Research Institute, Pune, India
| | - Vijay Nema
- Division of Molecular Biology, ICMR-National AIDS Research Institute, Pune, India
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13
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Das RR, Fajrudheen M, Mohanty M, John J, Rath S, Satapathy AK, Dwibedi B, Mishra B. Nonsevere Acute Respiratory Syndrome Human Coronaviruses in Children Hospitalized with Acute Lower Respiratory Infection. J Glob Infect Dis 2021; 13:33-35. [PMID: 33911450 PMCID: PMC8054798 DOI: 10.4103/jgid.jgid_252_20] [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: 08/03/2020] [Revised: 09/09/2020] [Accepted: 09/17/2020] [Indexed: 11/20/2022] Open
Abstract
Background: The nonzoonotic (nonsevere acute respiratory syndrome (SARS)/Middle East respiratory syndrome) human coronaviruses (HCoVs) are usually considered as the causative agent for acute respiratory infection. We studied the characteristics and outcome of children with non-SARS HCoV acute lower respiratory infection (ALRI). Methods: This was a cross-sectional study from a tertiary care teaching hospital in eastern India. Results: Of 137 samples tested positive for respiratory viruses, 13 were due to HCoV (7 boys, median age: 2 years). Cough was the most common symptom, followed by breathing difficulty and fever. An underlying comorbid condition present in 38.4%. Co-infection with other viruses was seen in 69% of cases. Chest radiograph was abnormal in 69.3% of children. Antibiotics were administered in 53.8%. The median length of hospitalization was 5 d, irrespective of underlying disease. There was no mortality. Conclusions: HCoV is an uncommon but increasingly recognized cause of ALRI in hospitalized children. No severe illness was found in children with underlying comorbidities. This study underscores the importance of HCoV in causation of childhood ALRI, necessitating a surveillance system in India.
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Affiliation(s)
| | | | | | - Joseph John
- Department of Pediatrics, AIIMS, Bhubaneswar, Odisha, India
| | - Sutapa Rath
- Department of Microbiology, AIIMS, Bhubaneswar, Odisha, India
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14
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Umuhoza T, Bulimo WD, Oyugi J, Musabyimana JP, Kinengyere AA, Mancuso JD. Prevalence of human respiratory syncytial virus, parainfluenza and adenoviruses in East Africa Community partner states of Kenya, Tanzania, and Uganda: A systematic review and meta-analysis (2007-2020). PLoS One 2021; 16:e0249992. [PMID: 33905425 PMCID: PMC8078816 DOI: 10.1371/journal.pone.0249992] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 03/29/2021] [Indexed: 01/19/2023] Open
Abstract
Background Viruses are responsible for a large proportion of acute respiratory tract infections (ARTIs). Human influenza, parainfluenza, respiratory-syncytial-virus, and adenoviruses are among the leading cause of ARTIs. Epidemiological evidence of those respiratory viruses is limited in the East Africa Community (EAC) region. This review sought to identify the prevalence of respiratory syncytial virus, parainfluenza, and adenoviruses among cases of ARTI in the EAC from 2007 to 2020. Methods A literature search was conducted in Medline, Global Index Medicus, and the grey literature from public health institutions and programs in the EAC. Two independent reviewers performed data extraction. We used a random effects model to pool the prevalence estimate across studies. We assessed heterogeneity with the I2 statistic, and Cochran’s Q test, and further we did subgroup analysis. This review was registered with PROSPERO under registration number CRD42018110186. Results A total of 12 studies met the eligibility criteria for the studies documented from 2007 to 2020. The overall pooled prevalence of adenoviruses was 13% (95% confidence interval [CI]: 6–21, N = 28829), respiratory syncytial virus 11% (95% CI: 7–15, N = 22627), and parainfluenza was 9% (95% CI: 7–11, N = 28363). Pooled prevalence of reported ARTIs, all ages, and locality varied in the included studies. Studies among participants with severe acute respiratory disease had a higher pooled prevalence of all the three viruses. Considerable heterogeneity was noted overall and in subgroup analysis. Conclusion Our findings indicate that human adenoviruses, respiratory syncytial virus and parainfluenza virus are prevalent in Kenya, Tanzania, and Uganda. These three respiratory viruses contribute substantially to ARTIs in the EAC, particularly among those with severe disease and those aged five and above.
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Affiliation(s)
- Therese Umuhoza
- Institute of Tropical and Infectious Diseases, University of Nairobi, Nairobi, Kenya
| | - Wallace D. Bulimo
- Department of Emerging Infectious Diseases, United States Army Medical Directorate – Africa, Nairobi, Kenya
- School of Medicine, University of Nairobi, Nairobi, Kenya
- * E-mail:
| | - Julius Oyugi
- Institute of Tropical and Infectious Diseases, University of Nairobi, Nairobi, Kenya
| | | | - Alison A. Kinengyere
- Sir Albert Cook Library, College of Health Sciences, University Makerere, Kampala, Uganda
| | - James D. Mancuso
- Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland, United States of America
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15
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Wang MX, Gwee SXW, Chua PEY, Pang J. Effectiveness of Surgical Face Masks in Reducing Acute Respiratory Infections in Non-Healthcare Settings: A Systematic Review and Meta-Analysis. Front Med (Lausanne) 2020; 7:564280. [PMID: 33102503 PMCID: PMC7546829 DOI: 10.3389/fmed.2020.564280] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 08/17/2020] [Indexed: 01/24/2023] Open
Abstract
Background: Acute respiratory illnesses (ARIs) are the most common respiratory infectious diseases among humans globally. Surgical mask (SM) wearing has been shown to be effective in reducing ARI among healthcare workers. However, the effectiveness of SM in reducing ARI in the non-healthcare settings remains unclear. This review aims to summarize and assess the association between SM wearing and ARI incidence, from existing interventional and observational studies conducted in non-healthcare settings. Methods: Systematic literature searches conducted in PubMed, Cochrane Library, and Embase databases identified 503 unique studies. After screening, 15 studies (5 randomized controlled trials and 10 observational studies) were assessed for reporting and methodological qualities. Proportions of ARI episodes in each group and adjusted summary statistics with their relevant 95% CIs were extracted. Data from 10 observational studies were pooled using the generic inverse variance method. Results: A total of 23,892 participants between 7 and 89 years old involved across 15 studies from 11 countries were involved. Key settings identified were Hajj, schools, and in-flight settings. A modest but non-significant protective effect of SM on ARI incidence was observed (pooled OR 0.96, 95% CI 0.8–1.15). Subgroup analysis according to age group, outcome ascertainment and different non-healthcare settings also revealed no significant associations between SM use and ARI incidence. Conclusion: Surgical mask wearing among individuals in non-healthcare settings is not significantly associated with reduction in ARI incidence in this meta-review.
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Affiliation(s)
- Min Xian Wang
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, Singapore.,Centre for Infectious Disease Epidemiology and Research, National University of Singapore, Singapore, Singapore
| | - Sylvia Xiao Wei Gwee
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, Singapore.,Centre for Infectious Disease Epidemiology and Research, National University of Singapore, Singapore, Singapore
| | - Pearleen Ee Yong Chua
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, Singapore.,Centre for Infectious Disease Epidemiology and Research, National University of Singapore, Singapore, Singapore
| | - Junxiong Pang
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, Singapore.,Centre for Infectious Disease Epidemiology and Research, National University of Singapore, Singapore, Singapore
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16
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Al Amad MA, Al Mahaqri AA, Al Serouri AA, Khader YS. Severe Acute Respiratory Infections With Influenza and Noninfluenza Respiratory Viruses: Yemen, 2011-2016. INQUIRY: The Journal of Health Care Organization, Provision, and Financing 2019; 56:46958019850731. [PMID: 31137990 PMCID: PMC6542124 DOI: 10.1177/0046958019850731] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In 2010, Yemen started the surveillance for severe acute respiratory infections (SARIs) by establishing 2 sentinel sites in Sana’a and Aden city. This study aims to determine the proportions of influenza and noninfluenza viruses among SARI patients and to determine the severity of SARI and its associated factors. The data of SARI patients who were admitted to SARI surveillance sites at Al Johory hospital in Sana’a and Al Wahdah hospital in Aden city during the period 2011-2016 were analyzed. The proportions of positive influenza viruses (type A, B) and noninfluenza viruses (respiratory syncytial, adenovirus, human parainfluenza, and human metapneumovirus), intensive care unit (ICU) admission rate, and fatality rate among SARI patients were calculated. A total of 1811 of SARI patients were admitted during 2011-2016. Of those, 78% were <15 years old. A total of 89 (5%) patients had influenza viruses and 655 (36%) had noninfluenza viruses. The overall ICU admission rate was 40% and the case-fatality rate was 8%. Infection by influenza type (A, B) and mixed (adenovirus, human parainfluenza) was significantly associated with lower ICU admission. Age <15 years old, infection with influenza B, pre-existence of chronic diseases, and admission to Aden site were significantly associated with higher fatality rate among patients. In conclusion; SARI patients in Yemen had a high ICU admission and case-fatality rates. Influenza type B, chronic diseases, and admission to Aden site are associated with higher fatality rate. Expanding surveillance sites and panel of laboratory tests to involve other pathogens will help to provide accurate diagnosis for SARI etiology and give more comprehensive picture. Training staff for SARI case management will help to reduce severe outcomes.
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Affiliation(s)
| | | | | | - Yousef S Khader
- 3 Jordan University of Science and Technology, Irbid, Jordan
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17
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Divarathna MVM, Rafeek RAM, Noordeen F. A review on epidemiology and impact of human metapneumovirus infections in children using TIAB search strategy on PubMed and PubMed Central articles. Rev Med Virol 2019; 30:e2090. [PMID: 31788915 DOI: 10.1002/rmv.2090] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 09/12/2019] [Accepted: 09/29/2019] [Indexed: 12/11/2022]
Abstract
Acute respiratory tract infections (ARTI) contribute to morbidity and mortality in children globally. Viruses including human metapneumovirus (hMPV) account for most ARTIs. The virus causes upper and lower respiratory tract infections mostly in young children and contributes to hospitalization of individuals with asthma,chronic obstructive pulmonary diseases and cancer. Moreover, hMPV pauses a considerable socio-economic impact creating a substantial disease burden wherever it has been studied, although hMPV testing is relatively new in many countries. We aimed to comprehensively analyze the epidemiological aspects including prevalence, disease burden and seasonality of hMPV infections in children in the world. We acquired published data extracted from PubMed and PubMed Central articles using the title and abstract (TIAB)search strategy for the major key words on hMPV infections from 9/54 African, 11/35 American, 20/50 Asian, 2/14 Australian/Oceanian and 20/51 European countries. According to the findings of this review, the prevalence of hMPV infection ranges from 1.1 to 86% in children of less than 5 years of age globally. Presence of many hMPV genotypes (A1, A2, B1, B2) and sub-genotypes (A2a, A2b, A2c, B2a, B2b) suggests a rapid evolution of the virus with limited influence by time and geography. hMPV infection mostly affects children between 2 to 5 years of age. The virus is active throughout the year in the tropics and epidemics occur during the winter and spring in temperate climates, contributing to a substantial disease burden globally.
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Affiliation(s)
- Maduja V M Divarathna
- Department of Microbiology, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka
| | - Rukshan A M Rafeek
- Department of Microbiology, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka
| | - Faseeha Noordeen
- Department of Microbiology, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka
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18
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Thuy Tien TT, Park H, Tuong HT, Yu ST, Choi DY, Yeo SJ. Development of a Rapid Fluorescent Immunochromatographic Test to Detect Respiratory Syncytial Virus. Int J Mol Sci 2018; 19:ijms19103013. [PMID: 30279406 PMCID: PMC6212954 DOI: 10.3390/ijms19103013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 09/28/2018] [Accepted: 09/29/2018] [Indexed: 12/11/2022] Open
Abstract
Human respiratory syncytial virus (RSV) is one of the most common viruses infecting the respiratory tracts of infants. The rapid and sensitive detection of RSV is important to minimize the incidence of infection. In this study, novel monoclonal antibodies (mAbs; B11A5 and E8A11) against RSV nucleoprotein (NP) were developed and applied to develop a rapid fluorescent immunochromatographic strip test (FICT), employing europium nanoparticles as the fluorescent material. For the FICT, the limits of detection of the antigen and virus were 1.25 µg/mL and 4.23 × 106 TCID50/mL, respectively, corresponding to 4.75 × 106 ± 5.8 ×105 (mean ± SD) RNA copy numbers per reaction mixture for RSV NP. A clinical study revealed a sensitivity of 90% (18/20) and specificity of 98.18% (108/110) for RSV detection when comparing the performance to that of reverse transcription polymerase chain reaction (RT-PCR), representing a 15% improvement in sensitivity over the SD Bioline rapid kit. This newly developed FICT could be a useful tool for the rapid diagnosis of RSV infection.
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Affiliation(s)
- Trinh Thi Thuy Tien
- Zoonosis Research Center, Department of Infection Biology, School of Medicine, Wonkwang University, 460, Iksan-daero, Iksan 54538, Korea.
| | - Hyun Park
- Zoonosis Research Center, Department of Infection Biology, School of Medicine, Wonkwang University, 460, Iksan-daero, Iksan 54538, Korea.
| | - Hien Thi Tuong
- Zoonosis Research Center, Department of Infection Biology, School of Medicine, Wonkwang University, 460, Iksan-daero, Iksan 54538, Korea.
| | - Seung-Taek Yu
- Department of Pediatrics, School of Medicine, Wonkwang University, 460, Iksan-daero, Iksan 54538, Korea.
| | - Du-Young Choi
- Department of Pediatrics, School of Medicine, Wonkwang University, 460, Iksan-daero, Iksan 54538, Korea.
| | - Seon-Ju Yeo
- Zoonosis Research Center, Department of Infection Biology, School of Medicine, Wonkwang University, 460, Iksan-daero, Iksan 54538, Korea.
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19
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Mummidi PS, Tripathy R, Dwibedi B, Mahapatra A, Baraha S. Viral aetiology of wheezing in children under five. Indian J Med Res 2018. [PMID: 28639594 PMCID: PMC5501050 DOI: 10.4103/ijmr.ijmr_840_15] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Background & objectives: Wheezing is a common problem in children under five with acute respiratory infections (ARIs). Viruses are known to be responsible for a considerable proportion of ARIs in children. This study was undertaken to know the viral aetiology of wheezing among the children less than five years of age, admitted to a tertiary care hospital in eastern India. Methods: Seventy five children, under the age of five years admitted with wheezing, were included in the study. Throat and nasal swabs were collected, and real-time multiplex polymerase chain reaction (PCR) assay was used to screen for influenza 1 and 2, respiratory syncytial virus (RSV), parainfluenza virus (PIV) 1, 2, 3 and 4, rhinovirus, human meta-pneumovirus, bocavirus (HBoV), Coronavirus, adenovirus, Enterovirus and Parechovirus. Results: The total viral detection rate was 28.57 per cent. Viral RNA markers were detected from children diagnosed to be having pneumonia (3 cases), bronchiolitis (9 cases), episodic wheeze (2 cases) and multitrigger wheeze (6 cases). RSV was the most common virus (35%) followed by PIV1, 2 and 3 (20%), HBoV (10%) and rhinovirus (5%). However, mixed infection was observed in 30 per cent of cases. Interpretation & conclusions: The study reported the presence of respiratory viral agents in 28.57 per cent of children with wheezing; RSV and PIV were most common, accounting to 55 per cent of the total cases. Mixed infection was reported in 30 per cent of cases. Seasonal variation in the occurrence of these viruses was also noted. Further studies need to be done with a large sample and longer follow up period to verify these findings.
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Affiliation(s)
| | - Radha Tripathy
- Department of Paediatrics, Hitech Medical College & Hospital, Bhubaneswar, India
| | - Bhagirathi Dwibedi
- Regional Medical Research Centre, Indian Council of Medical Research (ICMR), Bhubaneswar, India
| | - Amarendra Mahapatra
- Regional Medical Research Centre, Indian Council of Medical Research (ICMR), Bhubaneswar, India
| | - Suryakanta Baraha
- Department of Paediatrics, Hitech Medical College & Hospital, Bhubaneswar, India
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20
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Xu W, Guo L, Dong X, Li X, Zhou P, Ni Q, Zhou X, Wagner AL, Li L. Detection of Viruses and Mycoplasma pneumoniae in Hospitalized Patients with Severe Acute Respiratory Infection in Northern China, 2015-2016. Jpn J Infect Dis 2018; 71:134-139. [PMID: 29491245 DOI: 10.7883/yoken.jjid.2017.412] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Severe acute respiratory infection (SARI) presents a huge disease and economic burden worldwide. The present study described the frequency and types of different infectious etiologies among hospitalized patients with SARI in Tianjin, China, during 2015 and 2016. Basic information, in addition to a throat or serum sample, was collected from SARI patients. Nine viruses were detected using reverse transcription polymerase chain reaction, and Mycoplasma pneumoniae was detected using the Serodia Myco II gelatin particle agglutination test. A total of 585 specimens from 2,290 SARI cases were collected. The most common infection (19.66%, 115/585) was M. pneumoniae, followed by influenza virus A/B (6.15%, 36/585), and respiratory syncytial virus (4.96%, 29/585). Identification of viral or M. pneumoniae infections was the highest in the pediatric medicine ward (74.84%, 119/159), followed by the intensive care unit (37.04%, 80/216) and respiratory medicine ward (34.29%, 72/210). M. pneumoniae was highest (38.71%, 24/62) in the 5-14-year age group. Influenza was the main infection in January 2015 and March 2016. The correlation coefficient for the proportion of hospitalized cases of SARI and the positive detection rate within the same week was 0.25. M. pneumoniae and influenza were the leading pathogens among hospitalized SARI patients. A continued surveillance of hospitalized cases of SARI can detect emerging diseases, such as avian influenza A (H7N9) virus and other respiratory disease outbreaks.
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Affiliation(s)
- Wenti Xu
- Department of Infectious Disease Control, Tianjin Centers for Disease Control and Prevention
| | - Liru Guo
- Department of Pathogen Test, Tianjin Centers for Disease Control and Prevention
| | - Xiaochun Dong
- Department of Infectious Disease Control, Tianjin Centers for Disease Control and Prevention
| | - Xiaoxia Li
- Department of Disease Prevention, Tianjin Third Center Hospital
| | - Penghui Zhou
- Department of Infectious Disease Control, Tianjin Centers for Disease Control and Prevention
| | - Qiang Ni
- Department of Disease Prevention, Tianjin Third Center Hospital
| | - Xinying Zhou
- Department of Pediatrics, Tianjin Third Center Hospital
| | | | - Lin Li
- Department of Infectious Disease Control, Tianjin Centers for Disease Control and Prevention
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