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Koryukov MA, Oscorbin IP, Novikova LM, Gordukova MA, Turina IE, Galeeva EV, Kudlay DA, Filipenko ML. A Novel Multiplex LAMP Assay for the Detection of Respiratory Human Adenoviruses. Int J Mol Sci 2024; 25:7215. [PMID: 39000322 PMCID: PMC11241107 DOI: 10.3390/ijms25137215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/27/2024] [Accepted: 06/27/2024] [Indexed: 07/16/2024] Open
Abstract
Human adenoviruses (HAdVs) are common pathogens that are associated with a variety of diseases, including respiratory tract infections (RTIs). Without reliable, fast, and cost-effective detection methods for HAdVs, patients may be misdiagnosed and inappropriately treated. To address this problem, we have developed a multiplex loop-mediated isothermal amplification (LAMP) assay for the detection of the species Human adenovirus B (HAdV-B), Human adenovirus C (HAdV-C) and Human adenovirus E (HAdV-E) that cause RTIs. This multiplexing approach is based on the melting curve analysis of the amplicons with a specific melting temperature for each HAdV species. Without the need for typing of HAdVs, the LAMP results can be visually detected using colorimetric analysis. The assay reliably detects at least 375 copies of HAdV-B and -C and 750 copies of HAdV-E DNA per reaction in less than 35 min at 60 °C. The designed primers have no in silico cross-reactivity with other human respiratory pathogens. Validation on 331 nasal swab samples taken from patients with RTIs showed a 90-94% agreement rate with our in-house multiplex quantitative polymerase chain reaction (qPCR) method. Concordance between the quantitative and visual LAMP was 99%. The novel multiplexed LAMP could be an alternative to PCR for diagnostic purposes, saving personnel and equipment time, or could be used for point-of-care testing.
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Affiliation(s)
- Maksim A. Koryukov
- The Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 8 Lavrentiev Avenue, Novosibirsk 630090, Russia; (M.A.K.)
- Department of Natural Sciences, Novosibirsk State University, Novosibirsk 630090, Russia
| | - Igor P. Oscorbin
- The Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 8 Lavrentiev Avenue, Novosibirsk 630090, Russia; (M.A.K.)
| | - Lidiya M. Novikova
- The Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 8 Lavrentiev Avenue, Novosibirsk 630090, Russia; (M.A.K.)
| | - Maria A. Gordukova
- G. Speransky Children’s Hospital No. 9, 29 Shmitovsky Prospect, Moscow 123317, Russia
| | - Irina E. Turina
- Department of Natural Sciences, I.M. Sechenov First Moscow State Medical University, Pogodinskaya St. 1, Moscow 119991, Russia
| | - Elena V. Galeeva
- G. Speransky Children’s Hospital No. 9, 29 Shmitovsky Prospect, Moscow 123317, Russia
| | - Dmitry A. Kudlay
- Department of Natural Sciences, I.M. Sechenov First Moscow State Medical University, Pogodinskaya St. 1, Moscow 119991, Russia
| | - Maxim L. Filipenko
- The Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 8 Lavrentiev Avenue, Novosibirsk 630090, Russia; (M.A.K.)
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Majumdar A, Saha R, Chatterjee A, Gupta R, Chaudhuri RD, Chakrabarti AK, Chawla-Sarkar M, Dutta S. Upsurge in hospitalization of pediatric patients with severe acute respiratory infections in Kolkata and surrounding districts caused by recombinant human respiratory adenovirus type B 7/3. J Med Virol 2023; 95:e28897. [PMID: 37394792 DOI: 10.1002/jmv.28897] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/09/2023] [Accepted: 06/11/2023] [Indexed: 07/04/2023]
Abstract
Globally, different genotypes of human adenoviruses are associated with outbreaks of acute respiratory infection (ARI) though such evidence is lacking from India. In the present study, we report a sudden increase in the positivity of respiratory adenovirus among hospitalized children with ARI from Kolkata and the surrounding districts of West Bengal, India, from December 2022 to date. A sharp rise in the positivity rate of respiratory adenovirus was found which ranged from 22.1% in early December 2022 to 52.6% in mid-March 2023. The overall positivity was 40.4% during the period and children in the 2 to <5 years (51.0%) age group were mostly affected. Single infection with adenovirus was found in 72.4% of cases while co-infection with rhinovirus was the maximum (9.4%). Around 97.5% of positive cases required hospitalization. Cough, breathlessness, and wheeze were the most common clinical features among positive patients. Phylogenetic analysis of the hexon and fiber gene of all the sequenced strains revealed HAdV-B 7/3 recombination with more than 99% homology within themselves. This report of a respiratory adenovirus outbreak in West Bengal, India causing severe illness in the pediatric population underscores the need for regular monitoring of the circulating strains.
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Affiliation(s)
- Agniva Majumdar
- ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India
| | - Ritubrita Saha
- ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India
| | - Ananya Chatterjee
- ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India
| | - Rudrak Gupta
- ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India
| | - Ratul Datta Chaudhuri
- ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India
| | | | - Mamta Chawla-Sarkar
- ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India
| | - Shanta Dutta
- ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India
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Mahmoudi H, Faizi F, Rahimi A, Zandi S. An exploration into the challenges of managing the COVID-19 pandemic in mass education centers in Iran: A qualitative content analysis. Health Promot Perspect 2023; 13:61-67. [PMID: 37309434 PMCID: PMC10257566 DOI: 10.34172/hpp.2023.08] [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: 02/16/2023] [Accepted: 03/11/2023] [Indexed: 06/14/2023] Open
Abstract
Background: During the COVID-19 pandemic, Iran's mass education centers, which house a large number of trainees, encountered numerous difficulties in managing the disease. Understanding these challenges can help manage future pandemics. This study was conducted to explore the challenges of managing the COVID-19 pandemic in mass education centers in Iran. Methods: In this qualitative study, we used a qualitative content analysis of data collected from June to October 2022 in eight mass education centers in Iran. Semi-structured interviews (n=19) were used for data collection. Results: Four main themes and eleven subthemes were identified: The essence of dormitory life (Subthemes included: "The high population density in the dormitory", "Public toilets" and, Interprovincial travel), the inflexibility of the profession (Subthemes included: "Inapplicable health protocols" and, "Inflexible rules and regulations"), Negligence (Subthemes included: "Not adhering to health protocols", "Non acceptance of illness", and "High-risk taking"), and Weakness of health-care platform (Subthemes included: "shortage of healthcare facilities", "Lack of specialized personnel", and "The uni-dimensional aspect of healthcare services"). Conclusion: We identified several challenges that made the handling of COVID-19 difficult in Iran's centers for mass education. These findings can help future research in addressing the challenges and designing adaptable plans for pandemic management in mass education centers.
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Affiliation(s)
- Hosein Mahmoudi
- Trauma Research Center, Nursing Faculty, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Fakhrudin Faizi
- Atherosclerosis Research Center and Nursing Faculty, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Abolfazl Rahimi
- Nursing Faculty, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Shirdel Zandi
- School of Nursing, Baqiyatallah University of Medical Sciences, Tehran, Iran
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Wang B, Li J, Wu S, Wang Y, Chen Y, Zhai Y, Song X, Zhao Z, Zhang Z, Zhang J, Yu R, Hou L, Chen W. A seroepidemiological survey of adenovirus type 7 circulation among healthy adults in China and in Sierra Leone, West Africa. Front Public Health 2023; 11:1095343. [PMID: 36815162 PMCID: PMC9940762 DOI: 10.3389/fpubh.2023.1095343] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 01/18/2023] [Indexed: 02/09/2023] Open
Abstract
Adenovirus type 7 (HAdV7) is one of the most pathogenic human adenoviruses (HAdVs) and can cause severe illness and even death, particularly in people with weakened immune systems. Many countries worldwide have experienced epidemics of this highly contagious pathogen, including China and Sierra Leone; however, studies describing the seroprevalence of anti-HAdV7 neutralizing antibodies (nAbs) are still lacking. Herein, we established an efficient neutralization assay based on a recombinant luciferase-expressing HAdV7 virus (HAd7-Luc) to monitor historical HAdV7 infections and predict outbreak distributions. Among the 2,350 serum samples collected from eight sites in China and Sierra Leone in this cross-sectional serological survey, the overall proportion of anti-HAdV7-seropositive individuals was nearly 60%, with higher seroprevalence rates in Sierra Leone than in China. Regionally, HAdV7 nAb titers were higher in China than in Sierra Leone and showed a geographic variation across different regions. Regardless of the location, the seropositive rate of HAdV7 nAb was lower than that of HAdV5 nAb, as was the nAb titer. The prevalence rates of antibodies against HAdV7 and HAdV5 were both related to age but not to sex. In addition, serologic cross-reactions were rarely observed among people infected with HAdV7 and HAdV5. These results indicate a humoral immune response acquired through endemic HAdV7 infection and enrich the understanding of not only the epidemiological prevention and control of HAdV7 but also the clinical application of HAdV7-based vaccines or gene therapy tools.
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Affiliation(s)
- Busen Wang
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Jianhua Li
- Zhejiang Provincial Center of Disease Control and Prevention, Hangzhou, China
| | - Shipo Wu
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Yudong Wang
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Yi Chen
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Yanfang Zhai
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Xiaohong Song
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Zhenghao Zhao
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Zhe Zhang
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Jinlong Zhang
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Rui Yu
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Lihua Hou
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China,*Correspondence: Lihua Hou ✉
| | - Wei Chen
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China,Wei Chen ✉
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Lynch JP, Kajon AE. Adenovirus: Epidemiology, Global Spread of Novel Types, and Approach to Treatment. Semin Respir Crit Care Med 2021; 42:800-821. [PMID: 34918322 DOI: 10.1055/s-0041-1733802] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Adenoviruses (AdVs) are DNA viruses that typically cause mild infections involving the upper or lower respiratory tract, gastrointestinal tract, or conjunctiva. Rare manifestations of AdV infections include hemorrhagic cystitis, hepatitis, hemorrhagic colitis, pancreatitis, nephritis, or meningoencephalitis. AdV infections are more common in young children, due to lack of humoral immunity. Epidemics of AdV infection may occur in healthy children or adults in closed or crowded settings (particularly military recruits). The vast majority of cases are self-limited. However, the clinical spectrum is broad and fatalities may occur. Dissemination is more likely in patients with impaired immunity (e.g., organ transplant recipients, human immunodeficiency virus infection). Fatality rates for untreated severe AdV pneumonia or disseminated disease may exceed 50%. More than 100 genotypes and 52 serotypes of AdV have been identified and classified into seven species designated HAdV-A through -G. Different types display different tissue tropisms that correlate with clinical manifestations of infection. The predominant types circulating at a given time differ among countries or regions, and change over time. Transmission of novel strains between countries or across continents and replacement of dominant viruses by new strains may occur. Treatment of AdV infections is controversial, as prospective, randomized therapeutic trials have not been done. Cidofovir has been the drug of choice for severe AdV infections, but not all patients require treatment. Live oral vaccines are highly efficacious in reducing the risk of respiratory AdV infection and are in routine use in the military in the United States but currently are not available to civilians.
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Affiliation(s)
- Joseph P Lynch
- Division of Pulmonary, Critical Care Medicine, Allergy, and Clinical Immunology, Department of Internal Medicine, The David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Adriana E Kajon
- Infectious Disease Program, Lovelace Biomedical Research Institute, Albuquerque, New Mexico
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Huang Y, Wang C, Ma F, Guo Q, Yao L, Chen A, Luo X, Zheng L. Human adenoviruses in paediatric patients with respiratory tract infections in Beijing, China. Virol J 2021; 18:191. [PMID: 34556127 PMCID: PMC8460180 DOI: 10.1186/s12985-021-01661-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 09/14/2021] [Indexed: 02/07/2023] Open
Abstract
Background Human adenoviruse (HAdV) is a major pathogen of paediatric respiratory tract infections (RTIs). Mutation or recombination of HAdV genes may cause changes in its pathogenicity and transmission. We described the epidemiology and genotypic diversity of HAdV in hospitalized children with RTIs in Beijing, China. Methods Nasopharyngeal aspirates were collected from hospitalized children with RTIs from April 2018 to March 2019. HAdVs were detected by a quantitative real-time PCR, and the hexon gene was used for phylogenetic analysis. Results Among 1572 samples, 90 (5.72%) were HAdV-positive. The HAdV detection rate was highest in November and July. Among HAdV-positive children, 61.11% (55/90) were co-infected with other respiratory viruses, the most common of which were human respiratory syncytial virus and human rhinovirus. The main diagnosis was bronchopneumonia, most patient have cough and fever. Children with a high viral load were more likely to have a high fever (P = 0.041) and elevated WBC count (P = 0.000). Of 55 HAdV-positive specimens, HAdV-B (63.64%), HAdV-C (27.27%), and HAdV-E (9.09%) were main epidemic species. Phylogenetic analysis indicated that hexon sequences of three samples were on the same branch with the recombinant HAdV strain (CBJ113), which was circulating in Beijing since 2016. Conclusion The HAdV-B3 and HAdV-B7 are the main epidemic strains in Beijing, and the recombinant HAdV-C strain CBJ113 has formed an epidemic trend. Supplementary Information The online version contains supplementary material available at 10.1186/s12985-021-01661-6.
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Affiliation(s)
- Yiman Huang
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Chao Wang
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Fenlian Ma
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Qiong Guo
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Lihong Yao
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Aijun Chen
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Xiaoyi Luo
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Lishu Zheng
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China. .,Center for Biosafety Mega-Science, Chinese Academy of Sciences, Beijing, China.
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Abstract
Human respiratory virus infections lead to a spectrum of respiratory symptoms and disease severity, contributing to substantial morbidity, mortality and economic losses worldwide, as seen in the COVID-19 pandemic. Belonging to diverse families, respiratory viruses differ in how easy they spread (transmissibility) and the mechanism (modes) of transmission. Transmissibility as estimated by the basic reproduction number (R0) or secondary attack rate is heterogeneous for the same virus. Respiratory viruses can be transmitted via four major modes of transmission: direct (physical) contact, indirect contact (fomite), (large) droplets and (fine) aerosols. We know little about the relative contribution of each mode to the transmission of a particular virus in different settings, and how its variation affects transmissibility and transmission dynamics. Discussion on the particle size threshold between droplets and aerosols and the importance of aerosol transmission for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and influenza virus is ongoing. Mechanistic evidence supports the efficacies of non-pharmaceutical interventions with regard to virus reduction; however, more data are needed on their effectiveness in reducing transmission. Understanding the relative contribution of different modes to transmission is crucial to inform the effectiveness of non-pharmaceutical interventions in the population. Intervening against multiple modes of transmission should be more effective than acting on a single mode.
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Affiliation(s)
- Nancy H. L. Leung
- grid.194645.b0000000121742757WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
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