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Zufan SE, Mercoulia K, Kwong JC, Judd LM, Howden BP, Seemann T, Stinear TP. High-performance enrichment-based genome sequencing to support the investigation of hepatitis A virus outbreaks. Microbiol Spectr 2024; 12:e0283423. [PMID: 38018979 PMCID: PMC10783085 DOI: 10.1128/spectrum.02834-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 10/14/2023] [Indexed: 11/30/2023] Open
Abstract
IMPORTANCE This proof-of-concept study introduces a hybrid capture oligo panel for whole-genome sequencing of all six human pathogenic hepatitis A virus (HAV) subgenotypes, exhibiting a higher sensitivity than some conventional genotyping assays. The ability of hybrid capture to enrich multiple targets allows for a single, streamlined workflow, thus facilitating the potential harmonization of molecular surveillance of HAV with other enteric viruses. Even challenging sample matrices can be accommodated, making them suitable for broad implementation in clinical and public health laboratories. This innovative approach has significant implications for enhancing multijurisdictional outbreak investigations as well as our understanding of the global diversity and transmission dynamics of HAV.
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Affiliation(s)
- Sara E. Zufan
- The Center for Pathogen Genomics, The University of Melbourne, Melbourne, Victoria, Australia
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Karolina Mercoulia
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Microbiological Diagnostic Unit Public Health Laboratory, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Jason C. Kwong
- Department of Infectious Diseases, Austin Health, Heidelberg, Victoria, Australia
- Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Louise M. Judd
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Doherty Applied Microbial Genomics, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Benjamin P. Howden
- The Center for Pathogen Genomics, The University of Melbourne, Melbourne, Victoria, Australia
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Microbiological Diagnostic Unit Public Health Laboratory, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Torsten Seemann
- The Center for Pathogen Genomics, The University of Melbourne, Melbourne, Victoria, Australia
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Timothy P. Stinear
- The Center for Pathogen Genomics, The University of Melbourne, Melbourne, Victoria, Australia
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
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Lole KS, Thorat NC, Bhukya PL, Ramdasi AY, Hundekar SL, Patil AR, Shelkande SD, Sapkal GN. Circulation of a single hepatitis A virus genotype IIIA with two distinct clusters in different states of India. Indian J Med Microbiol 2023; 43:96-100. [PMID: 36481121 DOI: 10.1016/j.ijmmb.2022.11.003] [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: 03/30/2022] [Revised: 08/03/2022] [Accepted: 11/08/2022] [Indexed: 12/12/2022]
Abstract
With the changing hepatitis A epidemiology in India, focal viral outbreaks are being reported from different parts of the country. This study presents Hepatitis A Virus (HAV) strain characterization (period 2009-2020) from 18 states of India. For that, blood and stool samples (n = 280) were screened for HAV RNA and sequences for 5'non-coding and VP3 regions were generated from positive samples (n = 68). Presence of a single IIIA genotype in all samples indicated IIIA being the only HAV genotype currently circulating in India. Interestingly, it was evident that these strains form two distinct groups suggesting independent evolution of these two clusters.
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Affiliation(s)
- Kavita S Lole
- Hepatitis Group, ICMR-National Institute of Virology, Pune, Maharashtra, India.
| | - Neeta C Thorat
- Hepatitis Group, ICMR-National Institute of Virology, Pune, Maharashtra, India
| | - Prudhvi Lal Bhukya
- Resource Centre and Virus Diagnostic Laboratory (RCVDL), ICMR-National Institute of Virology, Pune, Maharashtra, India
| | - Ashwini Y Ramdasi
- Hepatitis Group, ICMR-National Institute of Virology, Pune, Maharashtra, India
| | - Supriya L Hundekar
- Hepatitis Group, ICMR-National Institute of Virology, Pune, Maharashtra, India
| | - Anuradha R Patil
- Hepatitis Group, ICMR-National Institute of Virology, Pune, Maharashtra, India
| | - Sunil D Shelkande
- Hepatitis Group, ICMR-National Institute of Virology, Pune, Maharashtra, India
| | - Gajanan N Sapkal
- Resource Centre and Virus Diagnostic Laboratory (RCVDL), ICMR-National Institute of Virology, Pune, Maharashtra, India
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Guerrero-Vadillo M, Peñuelas M, Domínguez Á, Godoy P, Gómez-Barroso D, Soldevila N, Izquierdo C, Martínez A, Torner N, Avellón A, Rius C, Varela C. Epidemiological Characteristics and Spatio-Temporal Distribution of Hepatitis A in Spain in the Context of the 2016/2017 European Outbreak. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:16775. [PMID: 36554666 PMCID: PMC9778781 DOI: 10.3390/ijerph192416775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/02/2022] [Accepted: 12/09/2022] [Indexed: 06/17/2023]
Abstract
The aim of our study was to describe the results of the epidemiological surveillance of hepatitis A infections in Spain in the context of the 2016/2017 European outbreak, particularly of hepatitis A outbreaks reported in the MSM population, incorporating the results of a spatio-temporal analysis of cases. Hepatitis A cases and outbreaks reported in 2016-2017 to the National Epidemiological Surveillance Network were reviewed: outbreaks in which some of the cases belonged to the MSM group were described, and clusters of hepatitis A cases in men and women were analysed using a space-time scan statistic. Twenty-six outbreaks were identified, with a median size of two cases per outbreak, with most of the outbreak-related cases belonging to the 15-44 years-old group. Nearly 85% occurred in a household setting, and in all outbreaks, the mode of transmission was direct person-to-person contact. Regarding space-time analysis, twenty statistically significant clusters were identified in the male population and eight in the female population; clusters in men presented a higher number of observed cases and affected municipalities, as well as a higher percentage of municipalities classified as large urban areas. The elevated number of cases detected in clusters of men indicates that the number of MSM-related outbreaks may be higher than reported, showing that spatio-temporal analysis is a complementary, useful tool which may improve the detection of outbreaks in settings where epidemiological investigation may be more challenging.
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Affiliation(s)
- María Guerrero-Vadillo
- Doctorate Programme in Biomedical Sciences and Public Health, National University of Distance Education (UNED), 28015 Madrid, Spain
- National Centre for Epidemiology, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Marina Peñuelas
- National Centre for Epidemiology, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Ángela Domínguez
- Departament de Medicina, Universitat de Barcelona (UB), 08036 Barcelona, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
| | - Pere Godoy
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
- Department of Medicine, Institut de Recerca Biomédica de Lleida (IRBLLeida)-Universidad de Lleida, 25008 Lleida, Spain
| | - Diana Gómez-Barroso
- National Centre for Epidemiology, Instituto de Salud Carlos III, 28029 Madrid, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
| | - Nuria Soldevila
- Departament de Medicina, Universitat de Barcelona (UB), 08036 Barcelona, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
| | | | - Ana Martínez
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
- Agència de Salut Pública de Catalunya, 08005 Barcelona, Spain
| | - Nuria Torner
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
| | - Ana Avellón
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
- Hepatitis Unit, National Centre of Microbiology, Instituto de Salud Carlos III, 28222 Majadahonda, Spain
| | - Cristina Rius
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
- Agència de Salut Pública de Barcelona, 08023 Barcelona, Spain
| | - Carmen Varela
- National Centre for Epidemiology, Instituto de Salud Carlos III, 28029 Madrid, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
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4
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Reuter G, Boros Á, Pankovics P. Seroprevalence and genotype distribution of hepatitis A virus in the pre-vaccine era in South Transdanubia, Hungary (2010-2020). Acta Microbiol Immunol Hung 2022; 69:228-232. [PMID: 35976735 DOI: 10.1556/030.2022.01814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 07/21/2022] [Indexed: 11/19/2022]
Abstract
In this study, the age-related seroprevalence of hepatitis A virus (HAV) infection was investigated in the population in South-Transdanubia, Southwest Hungary (Central Europe) between years 2010 and 2020. Up to the age of 40, the HAV seropositivity was less than 18% in all age groups indicating a low level of HAV endemicity in this part of the country in the covered study period. The HAV seropositivity started to increase at the age group 41-45 years, reaching the ∼50% at age group 56-60, and 75-80% at age group 66-70, respectively. A total of 43 (0.2%) of the 21,106 tested sera were HAV IgM-positive (the annual percentage range of HAV IgM-positivity was 0.046-0.6%). Total of 24 (55.8%) of the 43 HAV IgM-positive samples tested RT-PCR-positive confirmed as HAV sub-genotypes IA (N = 17; 70.8%) and IB (N = 7; 29.2%), respectively. Imported HAV infections (three cases from Romania, and one-one case from Austria and Italy), two small outbreaks and 11 cases of a genetically identical sub-genotype IA strain (GenBank number of the prototype strain: KM657825) from 2012 to 2014 were identified later connected directly to the enormous HAV outbreak initiated among men who have sex with men (MSM) at the end of 2011 in the capital Budapest. In summary, low endemicity but high and increased susceptibility for HAV infection was found in the population in Southwest Hungary, where repeated introduction of sub-genotypes IA and IB HAV strains were identified between 2010 and 2020.
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Affiliation(s)
- Gábor Reuter
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, Pécs, Hungary
| | - Ákos Boros
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, Pécs, Hungary
| | - Péter Pankovics
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, Pécs, Hungary
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5
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Dogadov DI, Kyuregyan KK, Mikhailov MI. [Enteral viral hepatitis in monkeys]. Vopr Virusol 2022; 67:173-184. [PMID: 35831960 DOI: 10.36233/0507-4088-110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 07/13/2022] [Indexed: 06/15/2023]
Abstract
Within the last decade, a large number of viruses genetically related to human hepatitis viruses have been identified in different animal species, including monkeys. Numerous viruses related to human hepatitis A virus (HAV, Picornaviridae: Hepatovirus: Hepatovirus A) were detected in various mammalian species in 2015-2018, predominantly in bats and rodents, but also in shrews, seals and marsupials. Zoonotic hepatitis E virus (HEV, Hepeviridae: Orthohepevirus: Orthohepevirus A) genotypes have been found in wild boars, deer, camels, and rabbits, as well as in non human primates. In addition, viruses that are genetically close to HEV have been described in bats, ferrets, rodents, birds, and fish. Nevertheless, monkeys remain important laboratory animals in HAV and HEV research. The study of spontaneous and experimental infection in these animals is an invaluable source of information about the biology and pathogenesis of these viruses and continues to be an indispensable tool for vaccine and drug testing. The purpose of this literature review was to summarize and analyze published data on the circulation of HAV and HEV among wild and captive primates, as well as the results of experimental studies of HAV and HEV infections in monkeys.
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Affiliation(s)
- D I Dogadov
- FSBRI «Research Institute of Medical Primatology» of the Ministry of Education and Science of Russia
| | - K K Kyuregyan
- FSBRI «Research Institute of Medical Primatology» of the Ministry of Education and Science of Russia; FSBRI «I.I. Mechnikov Research Institute of Vaccines and Sera»
| | - M I Mikhailov
- FSBRI «I.I. Mechnikov Research Institute of Vaccines and Sera»; FSBEI FPE «Russian Medical Academy of Continuous Professional Education» of the Ministry of Health of Russia
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Moreira LVL, Malheiros AP, Barbosa KMV, Freitas PEB, Silva AL, Cruz ACR, Nunes HM, Corrêa das Chagas AA, Souza de Souza AJ. The first evidence of Hepatitis A virus subgenotype IIIA in the Eastern Brazilian Amazon, 1982‐1983. J Med Virol 2022; 94:2887-2891. [DOI: 10.1002/jmv.27625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/18/2022] [Accepted: 01/21/2022] [Indexed: 11/09/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | - Alex Junior Souza de Souza
- Universidade Paulista, Instituto de Ciências da SaúdeCampinasSPBrasil
- Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de PatologiaSão PauloSPBrasil
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Prado T, Barbosa MRF, Araújo RS, Garcia SC, Melo AJ, Galvani AT, Brandão CJ, Silva RLO, Sato MIZ. Hepatitis A Outbreaks and Environmental Circulation of Genotype IA Strains in the São Paulo City, 2017-2018. FOOD AND ENVIRONMENTAL VIROLOGY 2021; 13:520-527. [PMID: 34532781 DOI: 10.1007/s12560-021-09497-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 08/31/2021] [Indexed: 06/13/2023]
Abstract
Hepatitis A virus (HAV) is the major cause of enterically transmitted infectious hepatitis. Between 2016 and 2017, the number of confirmed cases of hepatitis A virus (HAV) increased from 64 to 786 in São Paulo affecting mainly adults aged between 18 and 39 years (80%) and males (88%). To support epidemiological surveillance, the present study monitored the presence of HAV in urban sewage samples collected bimonthly for 1 year (November 2017-November 2018) in the central region of the city, where most of cases were detected. Sewage samples were concentrated by polyethylene glycol precipitation and HAV RNA was quantified by RT-qPCR. Nucleotide sequencing targeting the VP1/2A junction region was carried out to genotype the HAV strains. HAV was detected in 76.9% (40/52) of the samples, with a geometric mean viral load of 5.09 × 104 (± SD 4.51 × 105) genome copies (GC/L) (Mauá Street) and 5.27 × 104 (± SD 1.26 × 106) GC/L (Prestes Maia Avenue). Of the 40 positive samples, 8 were typed as HAV subgenotype IA [100% nucleotide (nt) identity with HAV strain VRD_521_2016]. Highest homology was obtained with sequences from European countries (Italy, Spain) and Israel, all of which had reported recent HAV outbreaks associated with men who have sex with men. Our results highlight that wastewater surveillance is a useful tool to support investigating HAV outbreaks in the community, including circulating genotypes.
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Affiliation(s)
- Tatiana Prado
- Division of Microbiology and Parasitology, Department of Environmental Analysis, Environmental Company of the São Paulo State (CETESB), Av. Prof. Frederico Hermann Jr., 345, São Paulo, CEP 05459-900, Brazil.
- Laboratory of Comparative and Environmental Virology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, CEP 21040-360, Brazil.
| | - Mikaela Renata Funada Barbosa
- Division of Microbiology and Parasitology, Department of Environmental Analysis, Environmental Company of the São Paulo State (CETESB), Av. Prof. Frederico Hermann Jr., 345, São Paulo, CEP 05459-900, Brazil
| | - Ronalda Silva Araújo
- Division of Microbiology and Parasitology, Department of Environmental Analysis, Environmental Company of the São Paulo State (CETESB), Av. Prof. Frederico Hermann Jr., 345, São Paulo, CEP 05459-900, Brazil
| | - Suzi Cristina Garcia
- Division of Microbiology and Parasitology, Department of Environmental Analysis, Environmental Company of the São Paulo State (CETESB), Av. Prof. Frederico Hermann Jr., 345, São Paulo, CEP 05459-900, Brazil
| | - Adalgisa Jesus Melo
- Division of Microbiology and Parasitology, Department of Environmental Analysis, Environmental Company of the São Paulo State (CETESB), Av. Prof. Frederico Hermann Jr., 345, São Paulo, CEP 05459-900, Brazil
| | - Ana Tereza Galvani
- Division of Microbiology and Parasitology, Department of Environmental Analysis, Environmental Company of the São Paulo State (CETESB), Av. Prof. Frederico Hermann Jr., 345, São Paulo, CEP 05459-900, Brazil
| | - Carlos Jesus Brandão
- Division of Microbiology and Parasitology, Department of Environmental Analysis, Environmental Company of the São Paulo State (CETESB), Av. Prof. Frederico Hermann Jr., 345, São Paulo, CEP 05459-900, Brazil
| | - Renan Lourenço Oliveira Silva
- Division of Microbiology and Parasitology, Department of Environmental Analysis, Environmental Company of the São Paulo State (CETESB), Av. Prof. Frederico Hermann Jr., 345, São Paulo, CEP 05459-900, Brazil
| | - Maria Inês Zanoli Sato
- Division of Microbiology and Parasitology, Department of Environmental Analysis, Environmental Company of the São Paulo State (CETESB), Av. Prof. Frederico Hermann Jr., 345, São Paulo, CEP 05459-900, Brazil
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Presence and Diversity of Different Enteric Viruses in Wild Norway Rats ( Rattus norvegicus). Viruses 2021; 13:v13060992. [PMID: 34073462 PMCID: PMC8227696 DOI: 10.3390/v13060992] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/21/2021] [Accepted: 05/23/2021] [Indexed: 02/07/2023] Open
Abstract
Rodents are common reservoirs for numerous zoonotic pathogens, but knowledge about diversity of pathogens in rodents is still limited. Here, we investigated the occurrence and genetic diversity of enteric viruses in 51 Norway rats collected in three different countries in Europe. RNA of at least one virus was detected in the intestine of 49 of 51 animals. Astrovirus RNA was detected in 46 animals, mostly of rat astroviruses. Human astrovirus (HAstV-8) RNA was detected in one, rotavirus group A (RVA) RNA was identified in eleven animals. One RVA RNA could be typed as rat G3 type. Rat hepatitis E virus (HEV) RNA was detected in five animals. Two entire genome sequences of ratHEV were determined. Human norovirus RNA was detected in four animals with the genotypes GI.P4-GI.4, GII.P33-GII.1, and GII.P21. In one animal, a replication competent coxsackievirus A20 strain was detected. Additionally, RNA of an enterovirus species A strain was detected in the same animal, albeit in a different tissue. The results show a high detection rate and diversity of enteric viruses in Norway rats in Europe and indicate their significance as vectors for zoonotic transmission of enteric viruses. The detailed role of Norway rats and transmission pathways of enteric viruses needs to be investigated in further studies.
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Accelerating Effects of Vitamin E Supplementation on Liver Enzyme Normalization in Children with Acute Hepatitis A Infection; a Single-Blinded Clinical Trial. ARCHIVES OF CLINICAL INFECTIOUS DISEASES 2020. [DOI: 10.5812/archcid.100591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background: Hepatitis A virus (HAV) infection is a widespread disease with no specific treatment. Objectives: In the present study, we investigated the effects of vitamin E in the treatment of acute HAV infection in children. Methods: This clinical trial study was conducted on 142 patients with acute HAV infection referred to Amir-Al-Momenin Hospital of Zabol during February 2016-August 2017. The patients were randomly divided into two groups of intervention (Vit E, n = 71) and control (no medication, n = 71). Liver enzymes were monitored during a six-month period. Results: The mean ages of the patients were 8.4 ± 2.5 and 9 ± 4.3 years in the control and intervention groups, respectively. Male participants constituted 36 (50.7%) and 35 (49.3%) in the control and intervention groups, respectively. In both the treatment and control groups, aspartate aminotransferase (AST) and alanine aminotransferase (ALT) significantly decreased over six months during the study (P < 0.001). AST level (IU/L) was significantly lower in the children who received vitamin E than controls at one-month (P = 0.01), two-month (P = 0.002), three-month (P = 0.005), four-month (P < 0.001), and six-month (P = 0.002) post-treatment periods. There was no significant difference comparing ALT between the intervention and control groups except for two months post-treatment (P = 0.01). Conclusions: Our study showed that the administration of vitamin E in children with acute hepatitis A can accelerate liver enzyme normalization.
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Kuodi P, Patterson J, Silal S, Hussey GD, Kagina BM. Characterisation of the environmental presence of hepatitis A virus in low-income and middle-income countries: a systematic review and meta-analysis. BMJ Open 2020; 10:e036407. [PMID: 32988941 PMCID: PMC7523219 DOI: 10.1136/bmjopen-2019-036407] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE To characterise the environmental presence of hepatitis A virus (HAV) in low- and middle-income countries (LMICs). DESIGN Systematic review and meta-analysis. DATA SOURCES EBSCOhost, PubMed, Scopus, ScienceDirect, Clinical Key and Web of Science were searched. Grey literature was sourced by searching the following electronic databases: Open Grey, National Health Research Database and Mednar. ELIGIBILITY CRITERIA FOR INCLUDING STUDIES Cross-sectional and ecological studies reporting HAV environmental presence and conducted in LMICs between January 2005 and May 2019, irrespective of language of publication. DATA EXTRACTION AND DATA SYNTHESIS Relevant data were extracted from articles meeting the inclusion criteria, and two reviewers independently assessed the studies for risk of bias. High heterogeneity of the extracted data led to the results being reported narratively. RESULTS A total of 2092 records were retrieved, of which 33 met the inclusion criteria. 21 studies were conducted in Tunisia, India and South Africa, and the rest were from Philippines, Pakistan, Morocco, Chad, Mozambique, Kenya and Uganda. In Tunisian raw sewage samples, the prevalence of HAV ranged from 12% to 68%, with an estimated average detection rate of 50% (95% CI 25 to 75), whereas HAV detection in treated sewage in Tunisia ranged from 23% to 65%, with an estimated average detection rate of 38% (95% CI 20 to 57). The prevalence of HAV detection in South African treated sewage and surface water samples ranged from 4% to 37% and from 16% to 76%, with an estimated average detection rates of 15% (95% CI 1 to 29) and 51% (95% CI 21 to 80), respectively. Over the review period, the estimated average detection rate of environmental HAV presence appeared to have declined by 10%. CONCLUSION The quality of included studies was fair, but sampling issues and paucity of data limited the strength of the review findings. PROSPERO REGISTRATION NUMBER CRD42019119592.
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Affiliation(s)
- Paul Kuodi
- Faculty of Health Sciences, Department of Public Health, Lira University, Lira, Uganda
- School of Public Health and Family Medicine, University of Cape Town, Rondebosch, South Africa
| | - Jenna Patterson
- School of Public Health and Family Medicine, University of Cape Town, Rondebosch, South Africa
- Vaccines for Africa Initiative, University of Cape Town Faculty of Health Sciences, Cape Town, South Africa
| | - Sheetal Silal
- Department of Statistical Sciences, University of Cape Town, Rondebosch, South Africa
- Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Gregory D Hussey
- Vaccines for Africa Initiative, University of Cape Town Faculty of Health Sciences, Cape Town, South Africa
| | - Benjamin M Kagina
- School of Public Health and Family Medicine, University of Cape Town, Rondebosch, South Africa
- Vaccines for Africa Initiative, University of Cape Town Faculty of Health Sciences, Cape Town, South Africa
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Nelson NP, Weng MK, Hofmeister MG, Moore KL, Doshani M, Kamili S, Koneru A, Haber P, Hagan L, Romero JR, Schillie S, Harris AM. Prevention of Hepatitis A Virus Infection in the United States: Recommendations of the Advisory Committee on Immunization Practices, 2020. MMWR Recomm Rep 2020; 69:1-38. [PMID: 32614811 PMCID: PMC8631741 DOI: 10.15585/mmwr.rr6905a1] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
HEPATITIS A IS A VACCINE-PREVENTABLE, COMMUNICABLE DISEASE OF THE LIVER CAUSED BY THE HEPATITIS A VIRUS (HAV). THE INFECTION IS TRANSMITTED VIA THE FECAL-ORAL ROUTE, USUALLY FROM DIRECT PERSON-TO-PERSON CONTACT OR CONSUMPTION OF CONTAMINATED FOOD OR WATER. HEPATITIS A IS AN ACUTE, SELF-LIMITED DISEASE THAT DOES NOT RESULT IN CHRONIC INFECTION. HAV ANTIBODIES (IMMUNOGLOBULIN G [IGG] ANTI-HAV) PRODUCED IN RESPONSE TO HAV INFECTION PERSIST FOR LIFE AND PROTECT AGAINST REINFECTION; IGG ANTI-HAV PRODUCED AFTER VACCINATION CONFER LONG-TERM IMMUNITY. THIS REPORT SUPPLANTS AND SUMMARIZES PREVIOUSLY PUBLISHED RECOMMENDATIONS FROM THE ADVISORY COMMITTEE ON IMMUNIZATION PRACTICES (ACIP) REGARDING THE PREVENTION OF HAV INFECTION IN THE UNITED STATES. ACIP RECOMMENDS ROUTINE VACCINATION OF CHILDREN AGED 12-23 MONTHS AND CATCH-UP VACCINATION FOR CHILDREN AND ADOLESCENTS AGED 2-18 YEARS WHO HAVE NOT PREVIOUSLY RECEIVED HEPATITIS A (HEPA) VACCINE AT ANY AGE. ACIP RECOMMENDS HEPA VACCINATION FOR ADULTS AT RISK FOR HAV INFECTION OR SEVERE DISEASE FROM HAV INFECTION AND FOR ADULTS REQUESTING PROTECTION AGAINST HAV WITHOUT ACKNOWLEDGMENT OF A RISK FACTOR. THESE RECOMMENDATIONS ALSO PROVIDE GUIDANCE FOR VACCINATION BEFORE TRAVEL, FOR POSTEXPOSURE PROPHYLAXIS, IN SETTINGS PROVIDING SERVICES TO ADULTS, AND DURING OUTBREAKS.
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Prakash S, Shukla S, Shukla R, Bhagat A, Srivastava SS, Jain A. Molecular characterization of hepatitis A virus circulating in Uttar Pradesh, India: A hospital-based study. Indian J Med Res 2020; 151:375-379. [PMID: 32461402 PMCID: PMC7371058 DOI: 10.4103/ijmr.ijmr_429_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background & objectives Hepatitis A is prevalent worldwide and is among the leading cause of acute viral hepatitis in India. Major geographical differences in endemicity of hepatitis A are closely related to hygienic and sanitary conditions and other indicators of the level of socio-economic development. The present study was aimed to know the seropositivity prevalence and predominant circulating strain of HAV in a north India. Methods Patients with acute viral hepatitis were enrolled. Blood samples were collected over a period of one year from June 2016 to May 2017. Serum samples were tested for anti-immunoglobulin M (IgM) HAV antibodies. The seropositive samples were analyzed for HAV-RNA by real-time reverse transcription-polymerase chain reaction (RT-PCR). Samples detected on molecular assay were subjected to conventional semi-nested RT-PCR for VP1 gene. Further sequencing of amplified RT-PCR products was done, and data were analyzed. Results A total of 1615 patients were enrolled, and serum samples were collected and tested. The male:female ratio was 1.3:1 with a mean age of 24.31±17.02 yr (range 0-83 yr). Among these, 128 (7.93%) were positive for anti-HAV IgM antibodies; 41.63 per cent of seropositive patients were in their childhood or early adolescent age group. Of all seropositive samples, 59 (46.09%) were positive for HAV RNA. Genotyping sequencing of 10 representative strains was carried out, and the circulating genotype was found to be IIIA. The nucleotide sequences showed homology among the strains. Interpretation & conclusions Our results showed that hepatitis A was a common disease in children with IIIA as a circulating genotype in this region. In approximately 50 per cent of cases, HAV RNA could be detected. Higher number of HAV IgM-seropositive cases was observed during monsoon period.
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Affiliation(s)
- Shantanu Prakash
- Department of Microbiology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Suruchi Shukla
- Department of Microbiology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Ratnam Shukla
- Department of Microbiology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Amit Bhagat
- Department of Microbiology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Shakti S Srivastava
- Department of Microbiology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Amita Jain
- Department of Microbiology, King George's Medical University, Lucknow, Uttar Pradesh, India
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13
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Zalesskikh AA, Bystrova TN. Sequencing of the VP1-2A Genome Segment for Hepatitis A Subtyping. Sovrem Tekhnologii Med 2020; 12:52-55. [PMID: 34513037 PMCID: PMC8353700 DOI: 10.17691/stm2020.12.1.06] [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: 08/12/2019] [Indexed: 12/03/2022] Open
Abstract
The aim of the study was to improve the VP1–2A sequencing method and facilitate the hepatitis A virus genotyping technique.
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Affiliation(s)
- A A Zalesskikh
- Senior Researcher, Laboratory for the Epidemiology of Viral Hepatitis, Blokhina Scientific Research Institute of Epidemiology and Microbiology of Nizhny Novgorod, Russian Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing (Rospotrebnadzor), 71 Malaya Yamskaya St., Nizhny Novgorod, 603950, Russia
| | - T N Bystrova
- Professor, Leading Researcher, Laboratory for the Epidemiology of Viral Hepatitis, Blokhina Scientific Research Institute of Epidemiology and Microbiology of Nizhny Novgorod, Russian Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing (Rospotrebnadzor), 71 Malaya Yamskaya St., Nizhny Novgorod, 603950, Russia
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14
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Hartard C, Gantzer C, Bronowicki JP, Schvoerer E. Emerging hepatitis E virus compared with hepatitis A virus: A new sanitary challenge. Rev Med Virol 2019; 29:e2078. [PMID: 31456241 DOI: 10.1002/rmv.2078] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 07/19/2019] [Accepted: 07/22/2019] [Indexed: 12/21/2022]
Abstract
Hepatitis A (HAV) and E (HEV) viruses are able to cause liver disease in humans. Among the five classical hepatotropic viruses, they are mainly transmitted via the fecal-oral route. Historically, many similarities have thus been described between them according to their incidence and their pathogenicity, especially in countries with poor sanitary conditions. However, recent advances have provided new insights, and the gap is widening between them. Indeed, while HAV infection incidence tends to decrease in developed countries along with public health improvement, HEV is currently considered as an underdiagnosed emerging pathogen. HEV autochthonous infections are increasingly observed and are mainly associated with zoonotic transmissions. Extra hepatic signs resulting in neurological or renal impairments have also been reported for HEV, as well as a chronic carrier state in immunocompromised patients, arguing in favor of differential pathogenesis between those two viruses. Recent molecular tools have allowed studies of viral genome variability and investigation of links between viral plasticity and clinical evolution. The identification of key functional mutations in viral genomes may improve the knowledge of their clinical impact and is analyzed in depth in the present review.
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Affiliation(s)
- Cédric Hartard
- Laboratoire de Virologie, CHRU de Nancy Brabois, Vandœuvre-lès-Nancy, France.,Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564, Vandoeuvre-lès-Nancy, France.,CNRS, LCPME UMR 7564, Nancy, France.,Faculté des Sciences et Technologies, Institut Jean Barriol, Université de Lorraine, Vandœuvre-lès-Nancy, France
| | - Christophe Gantzer
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564, Vandoeuvre-lès-Nancy, France.,CNRS, LCPME UMR 7564, Nancy, France.,Faculté des Sciences et Technologies, Institut Jean Barriol, Université de Lorraine, Vandœuvre-lès-Nancy, France
| | | | - Evelyne Schvoerer
- Laboratoire de Virologie, CHRU de Nancy Brabois, Vandœuvre-lès-Nancy, France.,Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564, Vandoeuvre-lès-Nancy, France.,CNRS, LCPME UMR 7564, Nancy, France.,Faculté des Sciences et Technologies, Institut Jean Barriol, Université de Lorraine, Vandœuvre-lès-Nancy, France
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15
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New Subgenotyping and Consensus Real-Time Reverse Transcription-PCR Assays for Hepatitis A Outbreak Surveillance. J Clin Microbiol 2019; 57:JCM.00500-19. [PMID: 31217273 DOI: 10.1128/jcm.00500-19] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 06/17/2019] [Indexed: 12/22/2022] Open
Abstract
Laboratory surveillance plays an important role in the detection and control of hepatitis A outbreaks and requires the application of rapid and accurate molecular diagnostic tools for hepatitis A virus (HAV) RNA detection, subgenotype identification, and sequence-based genotyping. We describe the development and validation of a triplex real-time, reverse transcription-PCR (triplex rRT-PCR) assay for the identification and discrimination of HAV subgenotypes IA, IB, and IIIA and a singleplex rRT-PCR assay designed to detect all HAV genotypes infecting humans. Overall, the accuracy, sensitivity, and specificity of the new assays were >97% for serum and plasma specimens collected during unrelated outbreaks of HAV in California and Michigan compared to a nested RT-PCR genotyping assay and the ISO 15216-1 rRT-PCR method for HAV detection. The new assays will permit the rapid detection of HAV RNA and discrimination among subgenotypes IA, IB, and IIIA in serum and plasma specimens, which will strengthen public health surveillance efforts for HAV outbreak detection and response.
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16
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Enkirch T, Severi E, Vennema H, Thornton L, Dean J, Borg ML, Ciccaglione AR, Bruni R, Christova I, Ngui SL, Balogun K, Němeček V, Kontio M, Takács M, Hettmann A, Korotinska R, Löve A, Avellón A, Muñoz-Chimeno M, de Sousa R, Janta D, Epštein J, Klamer S, Suin V, Aberle SW, Holzmann H, Mellou K, Ederth JL, Sundqvist L, Roque-Afonso AM, Filipović SK, Poljak M, Vold L, Stene-Johansen K, Midgley S, Fischer TK, Faber M, Wenzel JJ, Takkinen J, Leitmeyer K. Improving preparedness to respond to cross-border hepatitis A outbreaks in the European Union/European Economic Area: towards comparable sequencing of hepatitis A virus. Euro Surveill 2019; 24:1800397. [PMID: 31311618 PMCID: PMC6636214 DOI: 10.2807/1560-7917.es.2019.24.28.1800397] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 02/18/2019] [Indexed: 12/13/2022] Open
Abstract
IntroductionSequence-based typing of hepatitis A virus (HAV) is important for outbreak detection, investigation and surveillance. In 2013, sequencing was central to resolving a large European Union (EU)-wide outbreak related to frozen berries. However, as the sequenced HAV genome regions were only partly comparable between countries, results were not always conclusive.AimThe objective was to gather information on HAV surveillance and sequencing in EU/European Economic Area (EEA) countries to find ways to harmonise their procedures, for improvement of cross-border outbreak responses.MethodsIn 2014, the European Centre for Disease Prevention and Control (ECDC) conducted a survey on HAV surveillance practices in EU/EEA countries. The survey enquired whether a referral system for confirming primary diagnostics of hepatitis A existed as well as a central collection/storage of hepatitis A cases' samples for typing. Questions on HAV sequencing procedures were also asked. Based on the results, an expert consultation proposed harmonised procedures for cross-border outbreak response, in particular regarding sequencing. In 2016, a follow-up survey assessed uptake of suggested methods.ResultsOf 31 EU/EEA countries, 23 (2014) and 27 (2016) participated. Numbers of countries with central collection and storage of HAV positive samples and of those performing sequencing increased from 12 to 15 and 12 to 14 respectively in 2016, with all countries typing an overlapping fragment of 218 nt. However, variation existed in the sequenced genomic regions and their lengths.ConclusionsWhile HAV sequences in EU/EEA countries are comparable for surveillance, collaboration in sharing and comparing these can be further strengthened.
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Affiliation(s)
- Theresa Enkirch
- Public Health Agency of Sweden, Solna, Sweden
- European Programme for Public Health Microbiology Training (EUPHEM), European Centre for Disease Prevention and Control (ECDC), Solna, Sweden
| | - Ettore Severi
- European Centre for Disease Prevention and Control (ECDC), Solna, Sweden
- Karolinska Institutet, Stockholm, Sweden
| | - Harry Vennema
- National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Lelia Thornton
- HSE - Health Protection Surveillance Centre, Dublin, Ireland
| | - Jonathan Dean
- National Virus Reference Laboratory, Dublin, Ireland
| | | | | | | | - Iva Christova
- National Center of Infectious and Parasitic Diseases, Sofia, Bulgaria
| | | | - Koye Balogun
- Public Health England (PHE), London, United Kingdom
| | | | - Mia Kontio
- National Institute for Health and Welfare (THL), Helsinki, Finland
| | - Mária Takács
- National Public Health Institute, Budapest, Hungary
| | | | | | - Arthur Löve
- Landspitali- National University Hospital, Reykjavik, Iceland
| | - Ana Avellón
- Carlos III Institute of Health, Madrid, Spain
| | | | - Rita de Sousa
- National Institute of Health Dr. Ricardo Jorge (INSA), Lisbon, Portugal
| | - Denisa Janta
- National Institute of Public Health, Bucharest, Romania
| | | | - Sofieke Klamer
- Scientific Institute of Public Health, Brussels, Belgium
| | - Vanessa Suin
- Sciensano, Directorate Infectious diseases in humans, Brussels, Belgium
| | - Stephan W Aberle
- Center for Virology, Medical University of Vienna, Vienna, Austria
| | | | - Kassiani Mellou
- Hellenic Centre for Disease Control and Prevention, Athens, Greece
| | | | | | | | | | - Mario Poljak
- Institute of Microbiology and Immunology, Ljubljana, Slovenia
| | - Line Vold
- Norwegian institute of Public Health, Oslo, Norway
| | | | | | - Thea Kølsen Fischer
- Statens Serum Institut (SSI), Copenhagen, Denmark
- Department of Infectious Diseases and Global Health, University of Southern Denmark, Odense, Denmark
| | - Mirko Faber
- Robert Koch Institute (RKI), Berlin, Germany
| | - Jürgen J Wenzel
- National Reference Laboratory for HAV, Regensburg University Medical Center, Regensburg, Germany
| | - Johanna Takkinen
- European Centre for Disease Prevention and Control (ECDC), Solna, Sweden
| | - Katrin Leitmeyer
- European Centre for Disease Prevention and Control (ECDC), Solna, Sweden
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17
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Dogadov DI, Korzaya LI, Kyuregyan KK, Karlsen AA, Mikhailov MI, Lapin BA. [Markers of hepatitis A in the monkeys of the Adlers primate center.]. Vopr Virusol 2019; 64:246-249. [PMID: 32167690 DOI: 10.36233/0507-4088-2019-64-5-246-249] [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: 03/13/2019] [Accepted: 06/17/2019] [Indexed: 06/10/2023]
Abstract
UNLABELLED Hepatitis A is a widespread viral infection. The HAV strains of "human" and "monkey" origin are similar in their morphological and antigenic properties, but differ genotypically. OBJECTIVES The aim of this research was a comparative study of serological and molecular-genetic markers of HAV infection in monkeys born at the Adler Primate Center and in those imported from different countries. MATERIAL AND METHODS Fecal samples (n = 313) and serum (n = 266) from various species of monkey using ELISA and RT-PCR were studied. RESULTS AND DISCUSSION The frequency of anti-HAV-IgG was high (78.9%) in imported animals (vervet monkeys from Tanzania and cynomolgus monkeys from Vietnam) and as well as in various species of monkeys (rhesus monkeys, cynomolgus monkeys, green monkeys and papio hamadryas) of the Center (88.6%). At the same time, in the imported monkeys, the markers of "fresh" HAV infection (IgM-27.2%, Ag-HAV-16.7%, RNA-22.0%) were detected significantly more often (p> 0.05) than in monkeys kept at the Colony (IgM-7.5%, HAV-Ag - 5.2%, RNA - 3.6%). In general, anti-IgG reactivity ranged from 1.064 to 2.073 OD450, anti-IgM ranged from 0.546 to 1.059 OD450. The number of HAV-Ag was 0.496 - 1.995 OD450. RNA HAV only in rhesus monkeys and cynomolgys monkeys born at the Colony, as well as in imported vervet monkeys was detected. CONCLUSIONS The data obtained indicate a wide circulation of HAV among monkeys born in the Adler Primate Center and among the imported animals. Markers of "fresh" HAV infection varied depending on the species of monkeys and their origin.
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Affiliation(s)
- D I Dogadov
- Scientific Research Institute of Medical Primatology, Sochi, 354376, Russia
| | - L I Korzaya
- Scientific Research Institute of Medical Primatology, Sochi, 354376, Russia
| | - K K Kyuregyan
- Mechnikov Research Institute of Vaccines and Sera, Moscow, 105064, Russia
| | - A A Karlsen
- Mechnikov Research Institute of Vaccines and Sera, Moscow, 105064, Russia
| | - M I Mikhailov
- Mechnikov Research Institute of Vaccines and Sera, Moscow, 105064, Russia
| | - B A Lapin
- Scientific Research Institute of Medical Primatology, Sochi, 354376, Russia
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18
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Smith DB, Simmonds P. Classification and Genomic Diversity of Enterically Transmitted Hepatitis Viruses. Cold Spring Harb Perspect Med 2018; 8:a031880. [PMID: 29530950 PMCID: PMC6120691 DOI: 10.1101/cshperspect.a031880] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Hepatitis A virus (HAV) and hepatitis E virus (HEV) are significant human pathogens and are responsible for a substantial proportion of cases of severe acute hepatitis worldwide. Genetically, both viruses are heterogeneous and are classified into several genotypes that differ in their geographical distribution and risk group association. There is, however, little evidence that variants of HAV or HEV differ antigenically or in their propensity to cause severe disease. Genetically more divergent but primarily hepatotropic variants of both HAV and HEV have been found in several mammalian species, those of HAV being classified into eight species within the genus Hepatovirus in the virus family Picornaviridae. HEV is classified as a member of the species Orthohepevirus A in the virus family Hepeviridae, a species that additionally contains viruses infecting pigs, rabbits, and a variety of other mammalian species. Other species (Orthohepevirus B-D) infect a wide range of other mammalian species including rodents and bats.
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Affiliation(s)
- Donald B Smith
- Centre for Immunity, Infection and Evolution, University of Edinburgh, Edinburgh EH9 3JT, United Kingdom
- Nuffield Department of Medicine, University of Oxford, Oxford OX1 3SY, United Kingdom
| | - Peter Simmonds
- Nuffield Department of Medicine, University of Oxford, Oxford OX1 3SY, United Kingdom
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19
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Bai H, Shiota T, Yoshizaki S, Saito-Obata M, Malbas FF, Lupisan SP, Oshitani H, Takeda N, Muramatsu M, Wakita T, Ishii K, Li TC. Detection of Subgenotype IA and IIIA Hepatitis A Viruses in Rivers Flowing through Metro Manila, the Philippines. Jpn J Infect Dis 2018; 72:53-55. [PMID: 30175732 DOI: 10.7883/yoken.jjid.2018.148] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Hepatitis A virus (HAV) is a common infectious etiology of acute hepatitis worldwide. The Philippines remains highly endemic for hepatitis A, but there is still a lack of information about HAV in the country. To evaluate the HAV contamination in environmental water in the Philippines, we conducted the detection and genetic analyses of HAV RNA in samples from river water. Twelve water samples were collected at 6 sampling sites of 3 rivers in Metro Manila, in both the dry and wet seasons in 2012 and 2013. The HAV RNA was detected in all the 6 samples collected in the dry season, and in one sample from the wet season. Phylogenetic analysis confirmed that the HAV strains detected in the river water included multiple sequences belonging to subgenotypes IA and IIIA. This indicates that at least 2 genotypes of the HAV strains are circulating in the environment in the Philippines, posing a risk of HAV infection to not only residents, but also tourists, especially in the dry season.
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Affiliation(s)
- Huimin Bai
- Department of Basic Medicine and Forensic Medicine, Baotou Medical College, Baotou Inner Mongolia
| | - Tomoyuki Shiota
- Department of Virology II, National Institute of Infectious Diseases
| | - Sayaka Yoshizaki
- Department of Virology II, National Institute of Infectious Diseases
| | - Mariko Saito-Obata
- Department of Virology, Tohoku University Graduate School of Medicine.,RITM-Tohoku Collaborating Research Center on Emerging and Re-Emerging Infectious Diseases
| | | | | | - Hitoshi Oshitani
- Department of Virology, Tohoku University Graduate School of Medicine.,RITM-Tohoku Collaborating Research Center on Emerging and Re-Emerging Infectious Diseases
| | - Naokazu Takeda
- Research Institute for Microbial Diseases, Osaka University
| | | | - Takaji Wakita
- Department of Virology II, National Institute of Infectious Diseases
| | - Koji Ishii
- Department of Virology II, National Institute of Infectious Diseases
| | - Tian-Cheng Li
- Department of Virology II, National Institute of Infectious Diseases
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20
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Dogadov DI, Korzaya LI, Karlsen AA, Kyuregyan KK. Molecular genetic identification of isolates of the hepatitis A virus (HAV) from monkeys at Adler Primate Center. J Med Primatol 2018; 47:87-92. [PMID: 29380396 DOI: 10.1111/jmp.12333] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/01/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND The aim of this study was to assess prevalence and genetic variability of hepatitis A virus (HAV) isolates in monkeys born and kept at Adler Primate Center, as well as in imported animals. METHODS The fecal samples from various species of monkeys (n = 119) were studied using reverse transcription seminested PCR, sequencing, and phylogenetic analysis. RESULTS HAV RNA was detected in 2 Macaca mulatta and 1 Macaca fascicularis (3.8%) kept at Adler Primate Center (n = 79) and in 11 (27.5%) Chlorocebus pygerythrus (n = 40) imported from Tanzania. Phylogenetic analysis demonstrated that all HAV strains belonged to simian genotype V, but differed from the prototype genotype V strain (AGM-27) by 5.4%-5.5%. Sequences isolated in this study differed by only 0.1%, suggesting a common source of infection. CONCLUSIONS This study demonstrated the asymptomatic circulation of HAV genotype V among the monkeys at Adler Primate Center, and it indicated the significant genetic diversity within this HAV genotype.
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Affiliation(s)
| | - Lydia I Korzaya
- Scientific Research Institute of Medical Primatology, Sochi, Russia
| | - Anastasia A Karlsen
- Russian Medical Academy of Postgraduate Education, Moscow, Russia.,Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia
| | - Karen K Kyuregyan
- Russian Medical Academy of Postgraduate Education, Moscow, Russia.,Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia
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21
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Ciccullo A, Gagliardini R, Baldin G, Borghetti A, Moschese D, Emiliozzi A, Lombardi F, Ricci R, Speziale D, Pallavicini F, Di Giambenedetto S. An outbreak of acute hepatitis A among young adult men: clinical features and HIV coinfection rate from a large teaching hospital in Rome, Italy. HIV Med 2018; 19:369-375. [PMID: 29380498 DOI: 10.1111/hiv.12597] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/15/2017] [Indexed: 01/29/2023]
Abstract
OBJECTIVES Italy is a low-incidence region for hepatitis A; however, during the last 2 years an increase in the incidence of hepatitis A virus (HAV) infection was reported in Europe. The aim of this study was to describe this recent outbreak. METHODS We retrospectively analysed all cases of acute hepatitis A diagnosed at our laboratory between January 2010 and June 2017. We evaluated the following variables at the time of diagnosis: sex, age, nationality, glutamic oxaloacetic transaminase (GOT/AST), glutamic pyruvic transaminase (GPT/ALT), bilirubin concentration, international normalized ratio (INR) and the presence or absence of anti-HIV-1/2 antibodies. Hospitalization was also considered. We analysed these parameters using the χ2 test and Mann-Whitney U-test. RESULTS A total of 225 cases were analysed; 82.7% were in male patients, 94.2% were in Italians and the median age of the patients was 36.4 years. At diagnosis, the median GOT value was 306 U/L, the median GPT was 1389 U/L, and the median total bilirubin value was 5.88 mg/dL. Hospitalization was required for 142 patients, with a median duration of hospital stay of 8.5 days. In 2016-2017 we registered 141 cases, with a higher prevalence of male patients, higher GPT values and a higher prevalence of patients aged 20-39 years compared with older (2010-2015) cases. Homosexual intercourse was reported as the HAV risk factor in 70.2% of patients. HIV serology was available for 120 patients: 24 were HIV-positive, four of whom represented new diagnoses. HIV-positive patients showed lower bilirubin and GPT values and fewer hospitalizations than HIV-negative patients. CONCLUSIONS In 2016-2017, we saw a rise in the number of hepatitis A cases, with a higher prevalence of adult male patients. No significant differences regarding the prevalence of HIV coinfection emerged.
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Affiliation(s)
- A Ciccullo
- Institute of Clinical Infectious Diseases, Catholic University of the Sacred Heart, Rome, Italy
| | - R Gagliardini
- Institute of Clinical Infectious Diseases, Catholic University of the Sacred Heart, Rome, Italy
| | - G Baldin
- Institute of Clinical Infectious Diseases, Catholic University of the Sacred Heart, Rome, Italy
| | - A Borghetti
- Institute of Clinical Infectious Diseases, Catholic University of the Sacred Heart, Rome, Italy
| | - D Moschese
- Institute of Clinical Infectious Diseases, Catholic University of the Sacred Heart, Rome, Italy
| | - A Emiliozzi
- Institute of Clinical Infectious Diseases, Catholic University of the Sacred Heart, Rome, Italy
| | - F Lombardi
- Institute of Clinical Infectious Diseases, Catholic University of the Sacred Heart, Rome, Italy
| | - R Ricci
- Institute of Microbiology, Catholic University of the Sacred Heart, Rome, Italy
| | - D Speziale
- Institute of Microbiology, Catholic University of the Sacred Heart, Rome, Italy
| | - F Pallavicini
- Institute of Clinical Infectious Diseases, Catholic University of the Sacred Heart, Rome, Italy
| | - S Di Giambenedetto
- Institute of Clinical Infectious Diseases, Catholic University of the Sacred Heart, Rome, Italy
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22
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Rao S, Mao JS, Motlekar S, Fangcheng Z, Kadhe G. A review of immunogenicity and tolerability of live attenuated Hepatitis A vaccine in children. Hum Vaccin Immunother 2017; 12:3160-3165. [PMID: 27532370 PMCID: PMC5215502 DOI: 10.1080/21645515.2016.1216286] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Changing epidemiology of Hepatitis A virus (HAV) has led to an increased susceptibility of adolescents and adults to the infection. Vaccination can remarkably reduce the incidence and associated morbidity of HAV infection. This review is focused on the safety and efficacy of H2 strain derived live attenuated Hepatitis A vaccine. We found the vaccine to be highly immunogenic with minimal or negligible safety issues. Moreover, a single dose of live attenuated vaccine persists a long term immune response and can be a preferred option for developing countries. In 2014, Indian Academy of Paediatrics (IAP) also updated their recommendations for H2 vaccine as a single dose as against the previous 2 dose schedule. A focused approach to include the vaccine in national immunization program should be explored.
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Affiliation(s)
- Sameer Rao
- a Medical Affairs Department , Wockhardt Ltd , Bandra (East), Mumbai , India
| | - J S Mao
- b Institute of Viral Diseases, Zhejiang Academy of Medical Sciences , Hangzhou , China
| | - Salman Motlekar
- a Medical Affairs Department , Wockhardt Ltd , Bandra (East), Mumbai , India
| | - Zhuang Fangcheng
- b Institute of Viral Diseases, Zhejiang Academy of Medical Sciences , Hangzhou , China
| | - Ganesh Kadhe
- a Medical Affairs Department , Wockhardt Ltd , Bandra (East), Mumbai , India
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23
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Costantino A, Coppola N, Spada E, Bruni R, Taffon S, Equestre M, Marcantonio C, Sagnelli C, Dell'Isola C, Tosone G, Mascolo S, Sagnelli E, Ciccaglione AR. Hepatitis A virus strains circulating during 1997-2015 in Campania, a Southern Italy region with periodic outbreaks. J Med Virol 2017. [PMID: 28621437 DOI: 10.1002/jmv.24880] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In Italy, the incidence of hepatitis A has progressively declined over the last 30 years, though not homogeneously throughout the country. In Campania, Southern Italy, high annual incidence rates have been reported and several periodic outbreaks have occurred. To investigate the phylogenetic and epidemiologic relationships among HAV strains circulating in Campania over the period 1997-2015, 87 hepatitis A cases were investigated. The most frequent risk factor was the consumption of raw/undercooked shellfish (75/87, 86.2%). During 1997-2002 most viral strains were subtype IA (16/23, 70%); the phylogenetic pattern suggests that the incidence peaks observed in 2000-2001 had likely been caused by multiple strains. During a large 2004 outbreak, almost all viral variants were subtype IB (38/41, 93%); most of them (22/38, 58%) were recognized to be one of two main strains (differing for just a single nucleotide), the remaining sequences were strictly related variants. In 2014/2015, only IA strains were observed; two phylogenetically related but distinct strains were responsible, respectively, for a small cluster in 2014 and an outbreak in 2015. In each outbreak, several strains unrelated to those responsible for most cases were detected in a minority of patients, documenting a background of sporadic cases occurring even in the course of outbreaks; some of them proved to be identical to strains detected 11-14 years previously. Overall, the data suggest that several related and unrelated HAV strains have endemically circulated over the last 15 years in Campania, with some strains gaining epidemic transmission likely because of a local combination of multiple factors, including inadequate waste water purification and dietary habits.
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Affiliation(s)
- Angela Costantino
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Nicola Coppola
- Department of Mental Health and Public Medicine, Section of Infectious Diseases, Second University of Naples, Naples, Italy
| | - Enea Spada
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Roberto Bruni
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Stefania Taffon
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Michele Equestre
- Department of Neurosciences, Istituto Superiore di Sanità, Rome, Italy
| | - Cinzia Marcantonio
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Caterina Sagnelli
- Department of Experimental Medicine and Surgery F. Magrassi and A. Lanzara, Second University of Naples, Naples, Italy
| | - Chiara Dell'Isola
- Department of Infectious Diseases-Section of Hepatic Emergencies, Cotugno Hospital, Naples, Italy
| | - Grazia Tosone
- Department of Clinical Medicine and Surgery, Section of Infectious Diseases, University of Naples Federico II, Viral Infection and AIDS Unit, Naples, Italy
| | - Silvia Mascolo
- Department of Clinical Medicine and Surgery, Section of Infectious Diseases, University of Naples Federico II, Viral Infection and AIDS Unit, Naples, Italy
| | - Evangelista Sagnelli
- Department of Mental Health and Public Medicine, Section of Infectious Diseases, Second University of Naples, Naples, Italy
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Mellou K, Chrisostomou A, Sideroglou T, Georgakopoulou T, Kyritsi M, Hadjichristodoulou C, Tsiodras S. Hepatitis A among refugees, asylum seekers and migrants living in hosting facilities, Greece, April to December 2016. ACTA ACUST UNITED AC 2017; 22:30448. [PMID: 28181904 PMCID: PMC5388090 DOI: 10.2807/1560-7917.es.2017.22.4.30448] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 01/26/2017] [Indexed: 11/29/2022]
Abstract
An increased number of hepatitis A cases among refugees, asylum seekers and migrants residing in hosting facilities in Greece were recorded between April and December 2016. In total, 177 laboratory-confirmed symptomatic cases were reported; of these, 149 (84%) occurred in hosting camps mostly among Syrian children under 15 years. All cases reported symptom onset after their entry into the country. Public health interventions focused on hygiene measures and vaccination.
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Affiliation(s)
- Kassiani Mellou
- Hellenic Centre for Disease Control and Prevention (HCDCP), Athens, Greece
| | - Anthi Chrisostomou
- Hellenic Centre for Disease Control and Prevention (HCDCP), Athens, Greece
| | | | | | - Maria Kyritsi
- University of Thessaly, Medical School, Larisa, Greece
| | | | - Sotirios Tsiodras
- Hellenic Centre for Disease Control and Prevention (HCDCP), Athens, Greece.,National and Kapodistrian University of Athens, Medical School, Athens, Greece
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25
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Hamza H, Abd-Elshafy DN, Fayed SA, Bahgat MM, El-Esnawy NA, Abdel-Mobdy E. Detection and characterization of hepatitis A virus circulating in Egypt. Arch Virol 2017; 162:1921-1931. [PMID: 28303345 DOI: 10.1007/s00705-017-3294-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 02/08/2017] [Indexed: 11/26/2022]
Abstract
Hepatitis A virus (HAV) still poses a considerable problem worldwide. In the current study, hepatitis A virus was recovered from wastewater samples collected from three wastewater treatment plants over one year. Using RT-PCR, HAV was detected in 43 out of 68 samples (63.2%) representing both inlet and outlet. Eleven positive samples were subjected to sequencing targeting the VP1-2A junction region. Phylogenetic analysis revealed that all samples belonged to subgenotype IB with few substitutions at the amino acid level. The complete sequence of one isolate (HAV/Egy/BI-11/2015) showed that the similarity at the amino acid level was not reflected at the nucleotide level. However, the deduced amino acid sequence derived from the complete nucleotide sequence showed distinct substitutions in the 2B, 2C, and 3A regions. Recombination analysis revealed a recombination event between X75215 (subgenotype IA) and AF268396 (subgenotype IB) involving a portion of the 2B nonstructural protein coding region (nucleotides 3757-3868) assuming the herein characterized sequence an actual recombinant. Despite the role of recombination in picornaviruses evolution, its involvement in HAV evolution has rarely been reported, and this may be due to the limited available complete HAV sequences. To our knowledge, this represents the first characterized complete sequence of an Egyptian isolate and the described recombination event provides an important update on the circulating HAV strains in Egypt.
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Affiliation(s)
- Hazem Hamza
- Environmental Virology Laboratory, Department of Water Pollution Research, National Research Centre, Cairo, Egypt.
| | - Dina Nadeem Abd-Elshafy
- Environmental Virology Laboratory, Department of Water Pollution Research, National Research Centre, Cairo, Egypt
| | - Sayed A Fayed
- Department of Biochemistry, Faculty of Agriculture, Cairo University, Cairo, Egypt
| | - Mahmoud Mohamed Bahgat
- Immune and Biomarkers for Infection Laboratory, The Center of Excellence for Advanced Sciences, National Research Centre, Cairo, Egypt
| | - Nagwa Abass El-Esnawy
- Environmental Virology Laboratory, Department of Water Pollution Research, National Research Centre, Cairo, Egypt
| | - Emam Abdel-Mobdy
- Department of Biochemistry, Faculty of Agriculture, Cairo University, Cairo, Egypt
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26
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Pathogens of Food Animals: Sources, Characteristics, Human Risk, and Methods of Detection. ADVANCES IN FOOD AND NUTRITION RESEARCH 2017; 82:277-365. [PMID: 28427535 DOI: 10.1016/bs.afnr.2016.12.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Pathogens associated with food production (livestock) animals come in many forms causing a multitude of disease for humans. For the purpose of this review, these infectious agents can be divided into three broad categories: those that are associated with bacterial disease, those that are associated with viruses, and those that are parasitic in nature. The goal of this chapter is to provide the reader with an overview of the most common pathogens that cause disease in humans through exposure via the food chain and the consequence of this exposure as well as risk and detection methods. We have also included a collection of unusual pathogens that although rare have still caused disease, and their recognition is warranted in light of emerging and reemerging diseases. These provide the reader an understanding of where the next big outbreak could occur. The influence of the global economy, the movement of people, and food makes understanding production animal-associated disease paramount to being able to address new diseases as they arise.
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Abstract
Accurate diagnosis of viral infections enhances the ability of the clinician to make decisions on appropriate treatment of patients, evaluate disease progression and prevent misuse of antibiotics. Knowledge of the pathogen involved also allow implementation of infection control and monitoring of success of antiviral treatments that may affect the prognosis of patients. Epidemiological data collected through accurate diagnostics play an important role in public health through identification and control of outbreaks, implementation of appropriate diagnostic tests, vaccination programs and treatment but also to recognize common and emerging pathogens in a community. It is key that the clinician have an understanding of appropriate specimens to send to the laboratory and the value of specific nucleic acid and serological testing for different viral pathogens. Molecular techniques have revolutionized viral diagnoses over the past decade and enhanced both the sensitivity and specificity of tests and the speed by which a diagnosis can be made and new tests be developed. The continued use of serology for viruses with a short viremia, or for chronic infections should however complement these tests. This chapter aims to provide an overview of the available tests, the principles of testing and appropriate tests to select for different viruses and syndromes. Also provided is a glimpse of new developments in diagnostics that may further enhance the capacity to make a conclusive diagnosis in the near future.
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Affiliation(s)
- Robin J. Green
- Department of Paediatrics and Child Health, University of Pretoria, School of Medicine, Pretoria, ZA, South Africa
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28
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Yang Z, Leonard SR, Mammel MK, Elkins CA, Kulka M. Towards next-generation sequencing analytics for foodborne RNA viruses: Examining the effect of RNA input quantity and viral RNA purity. J Virol Methods 2016; 236:221-230. [DOI: 10.1016/j.jviromet.2016.07.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 06/28/2016] [Accepted: 07/15/2016] [Indexed: 11/15/2022]
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Qiao Y, Sui Z, Hu G, Cao H, Yang G, Li Y, Lei Y, Zhao L, Chen Q. Comparison of concentration methods for detection of hepatitis A virus in water samples. Virol Sin 2016; 31:331-8. [PMID: 27535067 DOI: 10.1007/s12250-016-3786-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 08/01/2016] [Indexed: 11/30/2022] Open
Abstract
Hepatitis A virus is a pathogen associated with water pollution. Contaminated drinking water can cause hepatitis A outbreaks, lead to economic losses, and even threaten human lives. It is difficult to detect low levels of hepatitis A virus in water, so the virus must be concentrated in order to quantify it accurately. Here, we present a simple, rapid, efficient technique for the concentration and detection of hepatitis A virus in water. Our data showed that adding phosphate-buffered saline to the water, pre-filtering the water, and adding Trizol reagent directly to the filtration membrane can significantly improve concentration efficiency. Of three types of filtration membranes studied (mixed cellulose ester membrane, polyvinylidene fluoride membrane, and nylon membrane), the concentration efficiency using mixed cellulose ester membrane with a 0.1-μm pore size was the highest, reaching 92.62 ± 5.17%. This method was used to concentrate hepatitis A virus in water samples from Donghu Lake. Using SYBR Green real-time reverse transcription polymerase chain reaction analysis, the detection sensitivity of this method reached 10(1) copies/μL and its concentration efficiency reached 79.45 ± 9.88%.
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Affiliation(s)
- Yuting Qiao
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China.,College of Animal Science and Technology, Institute of Animal Population Health, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Zhiwei Sui
- National Institute of Metrology, Beijing, 100013, China
| | - Guoliang Hu
- College of Animal Science and Technology, Institute of Animal Population Health, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Huabin Cao
- College of Animal Science and Technology, Institute of Animal Population Health, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Guoxiang Yang
- Hubei Wildlife Epidemic Focus and Disease Surveillance Center, Wuhan, 430075, China
| | - Yong Li
- Hubei Wildlife Epidemic Focus and Disease Surveillance Center, Wuhan, 430075, China
| | - Yongsong Lei
- Hubei Wildlife Epidemic Focus and Disease Surveillance Center, Wuhan, 430075, China
| | - Lihua Zhao
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Quanjiao Chen
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China.
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30
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Yu JM, Li LL, Zhang CY, Lu S, Ao YY, Gao HC, Xie ZP, Xie GC, Sun XM, Pang LL, Xu JG, Lipkin WI, Duan ZJ. A novel hepatovirus identified in wild woodchuck Marmota himalayana. Sci Rep 2016; 6:22361. [PMID: 26924426 PMCID: PMC4770319 DOI: 10.1038/srep22361] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 02/12/2016] [Indexed: 12/31/2022] Open
Abstract
Hepatitis A virus (HAV) is a hepatotropic picornavirus that causes acute liver disease worldwide. Here, we report on the identification of a novel hepatovirus tentatively named Marmota Himalayana hepatovirus (MHHAV) in wild woodchucks (Marmota Himalayana) in China. The genomic and molecular characterization of MHHAV indicated that it is most closely related genetically to HAV. MHHAV has wide tissue distribution but shows tropism for the liver. The virus is morphologically and structurally similar to HAV. The pattern of its codon usage bias is also consistent with that of HAV. Phylogenetic analysis indicated that MHHAV groups with known HAVs but forms an independent branch, and represents a new species in the genus Hepatovirus within the family Picornaviridae. Antigenic site analysis suggested MHHAV has a new antigenic property to other HAVs. Further evolutionary analysis of MHHAV and primate HAVs led to a most recent common ancestor estimate of 1,000 years ago, while the common ancestor of all HAV-related viruses including phopivirus can be traced back to 1800 years ago. The discovery of MHHAV may provide new insights into the origin and evolution of HAV and a model system with which to explore the pathogenesis of HAV infection.
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Affiliation(s)
- Jie-mei Yu
- National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Li-li Li
- National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Cui-yuan Zhang
- National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Shan Lu
- National Institute for Communicable Disease Control and Prevention, China CDC, Beijing, China
| | - Yuan-yun Ao
- National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Han-chun Gao
- National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Zhi-ping Xie
- National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Guang-cheng Xie
- National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Xiao-man Sun
- National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Li-li Pang
- National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Jian-guo Xu
- National Institute for Communicable Disease Control and Prevention, China CDC, Beijing, China
| | - W Ian Lipkin
- Center for Infection and Immunity, Columbia University, New York, NY, USA
| | - Zhao-Jun Duan
- National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
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31
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Bruni R, Taffon S, Equestre M, Chionne P, Madonna E, Rizzo C, Tosti ME, Alfonsi V, Ricotta L, De Medici D, Di Pasquale S, Scavia G, Pavoni E, Losio MN, Romanò L, Zanetti AR, Morea A, Pacenti M, Palù G, Capobianchi MR, Chironna M, Pompa MG, Ciccaglione AR. Key Role of Sequencing to Trace Hepatitis A Viruses Circulating in Italy During a Large Multi-Country European Foodborne Outbreak in 2013. PLoS One 2016; 11:e0149642. [PMID: 26901877 PMCID: PMC4764681 DOI: 10.1371/journal.pone.0149642] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 02/03/2016] [Indexed: 12/15/2022] Open
Abstract
Background Foodborne Hepatitis A Virus (HAV) outbreaks are being recognized as an emerging public health problem in industrialized countries. In 2013 three foodborne HAV outbreaks occurred in Europe and one in USA. During the largest of the three European outbreaks, most cases occurred in Italy (>1,200 cases as of March 31, 2014). A national Task Force was established at the beginning of the outbreak by the Ministry of Health. Mixed frozen berries were early demonstrated to be the source of infection by the identity of viral sequences in patients and in food. In the present study the molecular characterization of HAV isolates from 355 Italian cases is reported. Methods Molecular characterization was carried out by PCR/sequencing (VP1/2A region), comparison with reference strains and phylogenetic analysis. Results A unique strain was responsible for most characterized cases (235/355, 66.1%). Molecular data had a key role in tracing this outbreak, allowing 110 out of the 235 outbreak cases (46.8%) to be recognized in absence of any other link. The data also showed background circulation of further unrelated strains, both autochthonous and travel related, whose sequence comparison highlighted minor outbreaks and small clusters, most of them unrecognized on the basis of epidemiological data. Phylogenetic analysis showed most isolates from travel related cases clustering with reference strains originating from the same geographical area of travel. Conclusions In conclusion, the study documents, in a real outbreak context, the crucial role of molecular analysis in investigating an old but re-emerging pathogen. Improving the molecular knowledge of HAV strains, both autochthonous and circulating in countries from which potentially contaminated foods are imported, will become increasingly important to control outbreaks by supporting trace back activities, aiming to identify the geographical source(s) of contaminated food, as well as public health interventions.
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Affiliation(s)
- Roberto Bruni
- Department of Infectious, Parasitic and Immune-mediated Diseases, Istituto Superiore di Sanità (ISS), Rome, Italy
- * E-mail:
| | - Stefania Taffon
- Department of Infectious, Parasitic and Immune-mediated Diseases, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Michele Equestre
- Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Paola Chionne
- Department of Infectious, Parasitic and Immune-mediated Diseases, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Elisabetta Madonna
- Department of Infectious, Parasitic and Immune-mediated Diseases, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Caterina Rizzo
- National Centre for Epidemiology, Surveillance and Health Promotion, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Maria Elena Tosti
- National Centre for Epidemiology, Surveillance and Health Promotion, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Valeria Alfonsi
- National Centre for Epidemiology, Surveillance and Health Promotion, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Lara Ricotta
- National Centre for Epidemiology, Surveillance and Health Promotion, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Dario De Medici
- Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Simona Di Pasquale
- Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Gaia Scavia
- Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Enrico Pavoni
- Reparto tecnologia acidi nucleici applicata agli alimenti, Istituto Zooprofilattico Sperimentale della Lombardia e dell’Emilia Romagna, Brescia, Italy
| | - Marina Nadia Losio
- Reparto tecnologia acidi nucleici applicata agli alimenti, Istituto Zooprofilattico Sperimentale della Lombardia e dell’Emilia Romagna, Brescia, Italy
| | - Luisa Romanò
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | | | - Anna Morea
- Azienda Ospedaliero-Universitaria Policlinico di Bari, Bari, Italy
| | - Monia Pacenti
- Microbiology and Virology Unit, Padua University Hospital, Padua, Italy
| | - Giorgio Palù
- Department of Molecular Medicine, University of Padua, Padua, Italy
| | | | - Maria Chironna
- Azienda Ospedaliero-Universitaria Policlinico di Bari, Bari, Italy
| | - Maria Grazia Pompa
- Directorate General for Preventive Health Care, Ministry of Health, Rome, Italy
| | - Anna Rita Ciccaglione
- Department of Infectious, Parasitic and Immune-mediated Diseases, Istituto Superiore di Sanità (ISS), Rome, Italy
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32
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Tsatsralt-Od B, Baasanjav N, Nyamkhuu D, Ohnishi H, Takahashi M, Kobayashi T, Nagashima S, Nishizawa T, Okamoto H. Molecular analysis of hepatitis A virus strains obtained from patients with acute hepatitis A in Mongolia, 2004-2013. J Med Virol 2015; 88:622-30. [PMID: 26369542 DOI: 10.1002/jmv.24380] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2015] [Indexed: 01/22/2023]
Abstract
Despite the high endemicity of hepatitis A virus (HAV) in Mongolia, the genetic information on those HAV strains is limited. Serum samples obtained from 935 patients with acute hepatitis in Ulaanbaatar, Mongolia during 2004-2013 were tested for the presence of HAV RNA using reverse transcription-PCR with primers targeting the VP1-2B region (481 nucleotides, primer sequences at both ends excluded). Overall, 180 patients (19.3%) had detectable HAV RNA. These 180 isolates shared 94.6-100% identity and formed four phylogenetic clusters within subgenotype IA. One or three representative HAV isolates from each cluster exhibited 2.6-3.9% difference between clusters over the entire genome. Cluster 1 accounted for 65.0% of the total, followed by Cluster 2 (30.6%), Cluster 3 (3.3%), and Cluster 4 (1.1%). Clusters 1 and 2 were predominant throughout the observation period, whereas Cluster 3 was undetectable in 2009 and 2013 and Cluster 4 became undetectable after 2009. The Mongolian HAV isolates were closest to those of Chinese or Japanese origin (97.7-98.5% identities over the entire genome), suggesting the evolution from a common ancestor with those circulating in China and Japan. Further molecular epidemiological analyses of HAV infection are necessary to investigate the factors underlying the spread of HAV and to implement appropriate prevention measures in Mongolia.
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Affiliation(s)
- Bira Tsatsralt-Od
- National Institute of Medicine, Ministry of Health and Ministry of Science Education, Ulaanbaatar, Mongolia.,National Center for Communicable Diseases, Ministry of Health, Ulaanbaatar, Mongolia
| | - Nachin Baasanjav
- National Institute of Medicine, Ministry of Health and Ministry of Science Education, Ulaanbaatar, Mongolia
| | - Dulmaa Nyamkhuu
- National Center for Communicable Diseases, Ministry of Health, Ulaanbaatar, Mongolia
| | - Hiroshi Ohnishi
- Division of Virology, Department of Infection and Immunity, Jichi Medical University School of Medicine, Tochigi, Japan
| | - Masaharu Takahashi
- Division of Virology, Department of Infection and Immunity, Jichi Medical University School of Medicine, Tochigi, Japan
| | - Tominari Kobayashi
- Division of Virology, Department of Infection and Immunity, Jichi Medical University School of Medicine, Tochigi, Japan
| | - Shigeo Nagashima
- Division of Virology, Department of Infection and Immunity, Jichi Medical University School of Medicine, Tochigi, Japan
| | - Tsutomu Nishizawa
- Division of Virology, Department of Infection and Immunity, Jichi Medical University School of Medicine, Tochigi, Japan
| | - Hiroaki Okamoto
- Division of Virology, Department of Infection and Immunity, Jichi Medical University School of Medicine, Tochigi, Japan
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Kanda T, Nakamoto S, Wu S, Nakamura M, Jiang X, Haga Y, Sasaki R, Yokosuka O. Direct-acting Antivirals and Host-targeting Agents against the Hepatitis A Virus. J Clin Transl Hepatol 2015; 3:205-10. [PMID: 26623267 PMCID: PMC4663202 DOI: 10.14218/jcth.2015.00016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 06/10/2015] [Accepted: 06/11/2015] [Indexed: 12/16/2022] Open
Abstract
Hepatitis A virus (HAV) infection is a major cause of acute hepatitis and occasionally leads to acute liver failure in both developing and developed countries. Although effective vaccines for HAV are available, the development of new antivirals against HAV may be important for the control of HAV infection in developed countries where no universal vaccination program against HAV exists, such as Japan. There are two forms of antiviral agents against HAV: direct-acting antivirals (DAAs) and host-targeting agents (HTAs). Studies using small interfering ribonucleic acid (siRNA) have suggested that the HAV internal ribosomal entry site (IRES) is an attractive target for the control of HAV replication and infection. Among the HTAs, amantadine and interferon-lambda 1 (IL-29) inhibit HAV IRES-mediated translation and HAV replication. Janus kinase (JAK) inhibitors inhibit La protein expression, HAV IRES activity, and HAV replication. Based on this review, both DAAs and HTAs may be needed to control effectively HAV infection, and their use should continue to be explored.
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Affiliation(s)
- Tatsuo Kanda
- Correspondence to: Tatsuo Kanda, Department of Gastroenterology and Nephrology, Chiba University, Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan. Tel: +81-43-226-2086, Fax: +81-43-226-2088, E-mail:
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Asaei S, Ziyaeyan M, Moeini M, Jamalidoust M, Behzadi MA. Seroprevalence of Hepatitis A and E Virus Infections Among Healthy Population in Shiraz, Southern Iran. Jundishapur J Microbiol 2015; 8:e19311. [PMID: 26421130 PMCID: PMC4584134 DOI: 10.5812/jjm.19311v2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2014] [Revised: 06/14/2014] [Accepted: 06/24/2014] [Indexed: 01/02/2023] Open
Abstract
Background: Enterically-transmitted acute viral hepatitis is caused predominantly by hepatitis A virus (HAV) and hepatitis E virus (HEV). The prevalence of HEV and HAV infections varies in different geographical regions. Objectives: This study was conducted to determine the prevalence of HEV and HAV infections among Iranian healthy individuals in southern Iran. Patients and Methods: Totally, 1030 samples were collected from healthy subjects in schools, those referred to tertiary outpatient clinics and health centers in Shiraz between November 2011 and May 2012. Their ages ranged between six months and 95 years. The presence of total anti-HAV and anti-HEV immunoglobulin M (IgM) in plasma was assessed by ELISA. Results: The results showed that 66.2% and 0.6% of the general population in this area were positive for total anti-HAV and IgM antibodies by ELISA, respectively. As seen, 13.4% and 0.9% were positive for total anti-HEV and IgM antibodies, respectively. The difference in total anti-HAV and anti-HEV antibodies was significant among the age groups (P < 0.001). Conclusions: This study showed that the prevalence rates of HAV and HEV antibodies were positively correlated with age. The results demonstrated that the infection with these two viruses in the region was high and some high-risk individuals including females at child-bearing age were more susceptible. HAV vaccination could be recommended for antibody-negative adults.
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Affiliation(s)
- Sadaf Asaei
- Department of Virology, Professor Alborzi Clinical Microbiology Research Center, Nemazi Hospital, Shiraz University of Medical Sciences, Shiraz, IR Iran
| | - Mazyar Ziyaeyan
- Department of Virology, Professor Alborzi Clinical Microbiology Research Center, Nemazi Hospital, Shiraz University of Medical Sciences, Shiraz, IR Iran
- Corresponding author: Mazyar Ziyaeyan, Department of Virology, Professor Alborzi Clinical Microbiology Research Center, Nemazi Hospital, Shiraz University of Medical Sciences, P. O. Box: 71937-11351, Shiraz, IR Iran. Tel: +98-7116474304, Fax: +98-7116474303, E-mail:
| | - Mahsa Moeini
- Department of Virology, Professor Alborzi Clinical Microbiology Research Center, Nemazi Hospital, Shiraz University of Medical Sciences, Shiraz, IR Iran
| | - Marzieh Jamalidoust
- Department of Virology, Professor Alborzi Clinical Microbiology Research Center, Nemazi Hospital, Shiraz University of Medical Sciences, Shiraz, IR Iran
- Department of Medical Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, IR Iran
| | - Mohammad Amin Behzadi
- Department of Virology, Professor Alborzi Clinical Microbiology Research Center, Nemazi Hospital, Shiraz University of Medical Sciences, Shiraz, IR Iran
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Epidemiological and genetic analysis of a 2014 outbreak of hepatitis A in Japan. Vaccine 2015; 33:6029-36. [PMID: 25957664 DOI: 10.1016/j.vaccine.2015.04.061] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 04/01/2015] [Accepted: 04/08/2015] [Indexed: 12/11/2022]
Abstract
Hepatitis A virus (HAV) is one of the most common causes of feces-transmitted acute hepatitis worldwide. In Japan, most of HAV infections have been sporadic cases and a relatively low number of cases (approximately 100-150) of acute hepatitis A were reported in 2012 and 2013. However, in 2014, 342 cases were reported as of week 22. In order to characterize the viral agents causing this outbreak, we collected stool or sera (and both for three case) from patients with hepatitis A from many regions throughout Japan and performed genotyping of the VP1/P2A regions of HAV. We then used a multiple-alignment algorithm to compare the nucleotide sequences with those of reference strains. Phylogenetic tree analyses revealed that the 159 HAV isolates were divided into three subgenotypes: IA (137 cases), IB (4 cases), and IIIA (18 cases). The most unique feature of this outbreak was that for most subgenotype IA cases (103 out of 137 IA cases) the sequences analyzed shared 100% homology. Interestingly, the peak week for these IA infections was almost the same nationwide, suggesting that the epidemic of hepatitis A caused by this subgenotype IA strain may have expanded from a single source possibly because of one food-borne or waterborne source that was distributed nationwide at once.
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Ko SM, Vaidya B, Kwon J, Lee HM, Oh MJ, Shin TS, Cho SY, Kim D. Detection of hepatitis A virus in seeded oyster digestive tissue by ricin A-linked magnetic separation combined with reverse transcription PCR. J Food Prot 2015; 78:1046-51. [PMID: 25951406 DOI: 10.4315/0362-028x.jfp-14-540] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Outbreaks of hepatitis A virus (HAV) infections are most frequently associated with the consumption of contaminated oysters. A rapid and selective concentration method is necessary for the recovery of HAV from contaminated oysters prior to detection using PCR. In this study, ricin extracted from castor beans (Ricinus communis) was tested as an alternative to antibody used in immunomagnetic separation while concentrating HAV prior to its detection using reverse transcription PCR. Initially, the extracted proteins from castor beans were fractionated into 13 fractions by gel filtration chromatography. Pretreatment of different protein fractions showed a variation in binding of HAV viral protein (VP) 1 to oyster digestive tissue in the range of 25.9 to 63.9%. The protein fraction, which caused the highest reduction in binding of VP1 to the tissue, was identified as ricin A by quadrupole time-of-flight mass spectrometry. Ricin A could significantly inhibit binding of VP1 to the tissue with a 50% inhibitory concentration of 4.5 μg/ml and a maximal inhibitory concentration of 105.2%. The result showed that the rate of inhibition of HAV binding to tissue was higher compared to the rate of ricin itself binding to HAV (slope: 0.0029 versus 0.00059). However, ricin A concentration showed a higher correlation to the relative binding of ricin itself to HAV than the inhibition of binding of HAV to the tissue (coefficient of determination, R(2): 0.9739 versus 0.6804). In conclusion, ricin A-linked magnetic bead separation combined with reverse transcription PCR can successfully detect HAV in artificially seeded oyster digestive tissue up to a 10(-4) dilution of the virus stock (titer: 10(4) 50% tissue culture infective dose per ml).
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Affiliation(s)
- Sang-Mu Ko
- Department of Aqualife Medicine, Chonnam National University, Yeosu 550-749, Jeonnam, South Korea
| | - Bipin Vaidya
- Department of Food Science and Technology, Chonnam National University, Gwangju 500-757, South Korea
| | - Joseph Kwon
- Korea Basic Science Institute, Daejeon 305-806, South Korea
| | - Hee-Min Lee
- Department of Food Science and Technology, Chonnam National University, Gwangju 500-757, South Korea
| | - Myung-Joo Oh
- Department of Aqualife Medicine, Chonnam National University, Yeosu 550-749, Jeonnam, South Korea
| | - Tai-Sun Shin
- Department of Food Science and Nutrition, Chonnam National University, Gwangju 500-757, South Korea
| | - Se-Young Cho
- Department of Food Science and Technology, Chonnam National University, Gwangju 500-757, South Korea
| | - Duwoon Kim
- Department of Food Science and Technology, Agribio Disaster Research Center, Institute of Environmentally-Friendly Agriculture, Chonnam National University, Gwangju 500-757, South Korea.
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Hepatitis A virus genotype distribution during a decade of universal vaccination of preadolescents. Int J Mol Sci 2015; 16:6842-54. [PMID: 25815599 PMCID: PMC4424991 DOI: 10.3390/ijms16046842] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 03/23/2015] [Indexed: 12/12/2022] Open
Abstract
A universal vaccination program among preadolescents was implemented in Catalonia, Spain, during the period of 1999-2013 and its effectiveness has been clearly demonstrated by an overall significant attack rate reduction. However, reductions were not constant over time, and increases were again observed in 2002-2009 due to the occurrence of huge outbreaks. In the following years, in the absence of large outbreaks, the attack rate decreased again to very low levels. However, an increase of symptomatic cases in the <5 age group has recently been observed. This is an unexpected observation since children younger than 6 are mostly asymptomatic. Such a long vaccination campaign offers the opportunity to analyze not only the effectiveness of vaccination, but also the influence of the circulating genotypes on the incidence of hepatitis A among the different age groups. This study has revealed the emergence of genotype IC during a foodborne outbreak, the short-lived circulation of vaccine-escape variants isolated during an outbreak among the men-having-sex-with-men group, and the association of genotype IIIA with the increase of symptomatic cases among the very young. From a public health perspective, two conclusions may be drawn: vaccination is better at an early age, and the vaccination schedule must be complete and include all recommended vaccine doses.
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Coudray-Meunier C, Fraisse A, Mokhtari C, Martin-Latil S, Roque-Afonso AM, Perelle S. Hepatitis A virus subgenotyping based on RT-qPCR assays. BMC Microbiol 2014; 14:296. [PMID: 25420941 PMCID: PMC4258257 DOI: 10.1186/s12866-014-0296-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 11/13/2014] [Indexed: 01/17/2023] Open
Abstract
Background The hepatitis A virus (HAV) is the most frequent cause of viral hepatitis worldwide and is recognized as one of the most widespread foodborne pathogens. HAV genotypes and subtypes differ in their geographic distribution and the incidence of HAV infection varies considerably among countries, and is particularly high in areas with poor sanitation and hygiene. Phylogenetic analyses are traditionally used in clinical microbiology for tracing the geographic origin of HAV strains. In food microbiology, this approach is complicated by the low contamination levels of food samples. To date, real-time reverse-transcription PCR has been one of the most promising detection methods due to its sensitivity, specificity and ability to deliver quantitative data in food samples, but it does not provide HAV subtyping information. Results Six subtype-specific RT-qPCR assays were developed for human HAV. The limit of detection of HAV was 50 genome copies/assay for subtype IIB, 500 genome copies assay for IA, IB, IIA and IIIB and 5000 genome copies/assay for IIIA. The specificity of the assays was evaluated by testing reference isolates and in vitro HAV RNA transcripts. No significant cross reactivity was observed. Subtyping results concordant with sequencing analysis were obtained from 34/35 clinical samples. Co-infection with a minor strain of a different subtype was suggested in 5 cases and a recombinant event in one case. Conclusions These RT-qPCR assays may be particularly useful for accurately tracing HAV in low-level contaminated samples such as food matrices but also to allow co-infection identification in human samples.
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Chiapponi C, Pavoni E, Bertasi B, Baioni L, Scaltriti E, Chiesa E, Cianti L, Losio MN, Pongolini S. Isolation and genomic sequence of hepatitis A virus from mixed frozen berries in Italy. FOOD AND ENVIRONMENTAL VIROLOGY 2014; 6:202-6. [PMID: 24859055 PMCID: PMC4119586 DOI: 10.1007/s12560-014-9149-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Accepted: 05/03/2014] [Indexed: 05/27/2023]
Abstract
Hepatitis A virus (HAV) was detected in two samples of mixed frozen berries linked to Italian hepatitis A outbreak in April and September 2013. Both viruses were fully sequenced by next-generation sequencing and the genomes clustered with HAV complete genomes of sub-genotype IA with nucleotide identities of 95-97%.
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Affiliation(s)
- Chiara Chiapponi
- Sezione Diagnostica di Parma, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), 43126, Parma, Italy,
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Hepatitis A virus: host interactions, molecular epidemiology and evolution. INFECTION GENETICS AND EVOLUTION 2013; 21:227-43. [PMID: 24200587 DOI: 10.1016/j.meegid.2013.10.023] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2013] [Revised: 10/25/2013] [Accepted: 10/26/2013] [Indexed: 12/16/2022]
Abstract
Infection with hepatitis A virus (HAV) is the commonest viral cause of liver disease and presents an important public health problem worldwide. Several unique HAV properties and molecular mechanisms of its interaction with host were recently discovered and should aid in clarifying the pathogenesis of hepatitis A. Genetic characterization of HAV strains have resulted in the identification of different genotypes and subtypes, which exhibit a characteristic worldwide distribution. Shifts in HAV endemicity occurring in different parts of the world, introduction of genetically diverse strains from geographically distant regions, genotype displacement observed in some countries and population expansion detected in the last decades of the 20th century using phylogenetic analysis are important factors contributing to the complex dynamics of HAV infections worldwide. Strong selection pressures, some of which, like usage of deoptimized codons, are unique to HAV, limit genetic variability of the virus. Analysis of subgenomic regions has been proven useful for outbreak investigations. However, sharing short sequences among epidemiologically unrelated strains indicates that specific identification of HAV strains for molecular surveillance can be achieved only using whole-genome sequences. Here, we present up-to-date information on the HAV molecular epidemiology and evolution, and highlight the most relevant features of the HAV-host interactions.
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Vaughan G, Forbi JC, Xia GL, Fonseca-Ford M, Vazquez R, Khudyakov YE, Montiel S, Waterman S, Alpuche C, Gonçalves Rossi LM, Luna N. Full-length genome characterization and genetic relatedness analysis of hepatitis A virus outbreak strains associated with acute liver failure among children. J Med Virol 2013; 86:202-8. [DOI: 10.1002/jmv.23843] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Gilberto Vaughan
- Division of Viral Hepatitis; Centers for Diseases Control and Prevention; Atlanta Georgia
| | - Joseph C. Forbi
- Division of Viral Hepatitis; Centers for Diseases Control and Prevention; Atlanta Georgia
| | - Guo-Liang Xia
- Division of Viral Hepatitis; Centers for Diseases Control and Prevention; Atlanta Georgia
| | - Maureen Fonseca-Ford
- Division of Global Migration and Quarantine; Centers for Disease Control and Prevention; Atlanta Georgia
| | - Roberto Vazquez
- National Institute for Epidemiologic Diagnosis and Reference; Mexico City Mexico
| | - Yury E. Khudyakov
- Division of Viral Hepatitis; Centers for Diseases Control and Prevention; Atlanta Georgia
| | - Sonia Montiel
- Division of Global Migration and Quarantine; Centers for Disease Control and Prevention; Atlanta Georgia
| | - Steve Waterman
- Division of Global Migration and Quarantine; Centers for Disease Control and Prevention; Atlanta Georgia
| | - Celia Alpuche
- National Institute for Epidemiologic Diagnosis and Reference; Mexico City Mexico
| | | | - Norma Luna
- General Directorate of Epidemiology; Mexico City Mexico
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Genetic diversity of hepatitis A virus in China: VP3-VP1-2A genes and evidence of quasispecies distribution in the isolates. PLoS One 2013; 8:e74752. [PMID: 24069343 PMCID: PMC3775754 DOI: 10.1371/journal.pone.0074752] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Accepted: 08/07/2013] [Indexed: 12/11/2022] Open
Abstract
Hepatitis A virus (HAV) is the most common cause of infectious hepatitis throughout the world, spread largely by the fecal-oral route. To characterize the genetic diversity of the virus circulating in China where HAV in endemic, we selected the outbreak cases with identical sequences in VP1-2A junction region and compiled a panel of 42 isolates. The VP3-VP1-2A regions of the HAV capsid-coding genes were further sequenced and analyzed. The quasispecies distribution was evaluated by cloning the VP3 and VP1-2A genes in three clinical samples. Phylogenetic analysis demonstrated that the same genotyping results could be obtained whether using the complete VP3, VP1, or partial VP1-2A genes for analysis in this study, although some differences did exist. Most isolates clustered in sub-genotype IA, and fewer in sub-genotype IB. No amino acid mutations were found at the published neutralizing epitope sites, however, several unique amino acid substitutions in the VP3 or VP1 region were identified, with two amino acid variants closely located to the immunodominant site. Quasispecies analysis showed the mutation frequencies were in the range of 7.22x10-4 -2.33x10-3 substitutions per nucleotide for VP3, VP1, or VP1-2A. When compared with the consensus sequences, mutated nucleotide sites represented the minority of all the analyzed sequences sites. HAV replicated as a complex distribution of closely genetically related variants referred to as quasispecies, and were under negative selection. The results indicate that diverse HAV strains and quasispecies inside the viral populations are presented in China, with unique amino acid substitutions detected close to the immunodominant site, and that the possibility of antigenic escaping mutants cannot be ruled out and needs to be further analyzed.
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Kim JH, Yeon JE, Baik SK, Kim YS, Kim HS, Park SH, Lee MS, Sohn JH, Lee JW, Choi SK, Kwon SY, Choi JY, Kim JH, Kang SY, An H, Seo YS, Yim HJ, Song JW, Um SH, Byun KS. Genotypic shift of the hepatitis A virus and its clinical impact on acute hepatitis A in Korea: a nationwide multicenter study. ACTA ACUST UNITED AC 2013; 45:811-8. [PMID: 23826788 DOI: 10.3109/00365548.2013.805425] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The genotypic shift of hepatitis A virus (HAV) and its correlation with clinical course has not been evaluated in acute hepatitis A (AHA). METHODS From June 2007 to May 2009, we prospectively enrolled 546 AHA patients. We performed a nested reverse transcriptase polymerase chain reaction (RT-PCR) using the serum samples in addition to phylogenetic analysis, then we compared patient clinical features. RESULTS Among 351 successfully genotyped patients, we found genotype IIIA in 178 patients (51%) and IA in 173 patients (49%). The sequences of genotype IA are identical to previously reported Korean genotype IA, and the new IIIA genotype is closely related to NOR24/Norway. We retrospectively analyzed 41 AHA samples collected from 2000 to 2006 and found that all of them were genotype IA. Patients with genotype IIIA showed significantly higher levels of aspartate aminotransferase, higher levels of alanine aminotransferase, and lower platelet counts than patients with genotype IA when comparing baseline laboratory data or peak/lowest laboratory data during the disease course. However, there were no differences in duration of hospital stay, incidence of cholestatic hepatitis, acute kidney injury, and acute liver failure, or mortality between them. CONCLUSIONS A genotypic shift of the HAV was identified in Korean AHA subjects, and genotype IIIA HAV has become endemic. Although there were significant differences in the biochemical responses of AHA between genotype IA and genotype IIIA patients, we did not detect any differences in clinical outcomes such as complications or mortality.
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Affiliation(s)
- Ji Hoon Kim
- From the Department of Internal Medicine, Korea University College of Medicine , Seoul
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Eilers R, Krabbe PFM, van Essen TGA, Suijkerbuijk A, van Lier A, de Melker HE. Assessment of vaccine candidates for persons aged 50 and older: a review. BMC Geriatr 2013; 13:32. [PMID: 23586926 PMCID: PMC3668232 DOI: 10.1186/1471-2318-13-32] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Accepted: 04/08/2013] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND The increasing life expectancy in most European countries has resulted in growth of the population 50 and older. This population is more susceptible to infectious diseases because of immunosenescence, co-morbidity and general frailty. Thus, to promote healthy aging, vaccination against vaccine-preventable-diseases could be one strategy. In addition to its possible individual benefits, vaccination may also yield social benefits, such as a lower overall cost of healthcare. Most European countries, however, offer only influenza vaccine although vaccines for pneumococcal disease, herpes zoster, pertussis, and hepatitis A are also available. Our aim is to review the knowledge of these vaccines for persons aged 50 and older and explore the arguments for expanding current vaccination programmes beyond just influenza. METHODS The evaluation model of Kimman et al. was used to assess herpes zoster, pneumococcal disease, pertussis and hepatitis A in terms of four domains: pathogen, vaccine, disease outcomes and cost-effectiveness. The sources were Dutch surveillance systems, seroprevalence studies and the international literature. RESULTS Herpes zoster, pneumococcal disease and pertussis are prevalent among persons aged 50 and older. Vaccines vary in effectiveness and have mild and self-limiting side effects. Vaccination against pneumococcal disease and pertussis causes adaptation of the responsible pathogen. For pertussis and hepatitis A, the vaccine is not registered specifically for the elderly population. Vaccination against herpes zoster and pertussis could improve quality of life, while vaccination against pneumococcal disease and hepatitis A prevents mortality. However, only vaccination against herpes zoster and pneumococcal disease appear to be cost-effective. CONCLUSIONS Vaccination can improve the health of the elderly population. As our review shows, however, the data are too incomplete to accurately judge its potential impact. More research is needed to determine how vaccination can most effectively improve the health of the growing population 50 years and older.
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Affiliation(s)
- Renske Eilers
- Department of Epidemiology, University of Groningen, Academic Medical Center Groningen, P.O. Box 30.001, Groningen 9700 RB, The Netherlands
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), P.O. Box 1, Bilthoven 3720 BA, The Netherlands
| | - Paul FM Krabbe
- Department of Epidemiology, University of Groningen, Academic Medical Center Groningen, P.O. Box 30.001, Groningen 9700 RB, The Netherlands
| | - Ted GA van Essen
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, P.O. Box 85500, Utrecht 3508 GA, The Netherlands
| | - Anita Suijkerbuijk
- Center for Prevention and Health Services Research, National Institute for Public Health and the Environment (RIVM), P.O. Box 1, Bilthoven 3720 BA, The Netherlands
| | - Alies van Lier
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), P.O. Box 1, Bilthoven 3720 BA, The Netherlands
| | - Hester E de Melker
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), P.O. Box 1, Bilthoven 3720 BA, The Netherlands
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Debing Y, Kaplan GG, Neyts J, Jochmans D. Rapid and convenient assays to assess potential inhibitory activity on in vitro hepatitis A replication. Antiviral Res 2013; 98:325-31. [PMID: 23528258 DOI: 10.1016/j.antiviral.2013.03.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 02/20/2013] [Accepted: 03/15/2013] [Indexed: 01/25/2023]
Abstract
Three different antiviral assays were developed for the in vitro screening of inhibitors of the hepatitis A virus (HAV) of which (i) a cytopathic effect reduction assay suitable for medium-to-high-throughput screening and (ii) two virus yield reduction assays (based on quantification of viral RNA) for genotypes IB and IIIA. The assays were validated for antiviral studies with interferon-alpha (IFNα) and amantadine HCl, two known inhibitors of HAV replication. IFNα effectively inhibited HAV replication, whereas the activity of amantadine HCl appeared to be strain-dependent. Employing these assays, we assessed the effect of the known enterovirus inhibitors pleconaril, rupintrivir and enviroxime on HAV replication. Pleconaril exhibited some very moderate activity, the effect of rupintrivir proved to be strain-dependent. Enviroxime did not inhibit HAV replication, suggesting that phosphatidylinositol-4-kinase IIIβ is not crucial in the HAV life cycle.
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Affiliation(s)
- Yannick Debing
- Rega Institute for Medical Research, Department of Microbiology and Immunology, Minderbroedersstraat 10, 3000 Leuven, Belgium
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46
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Mukomolov S, Kontio M, Zheleznova N, Jokinen S, Sinayskaya E, Stalevskaya A, Davidkin I. Increased circulation of hepatitis A virus genotype IIIA over the last decade in St Petersburg, Russia. J Med Virol 2013; 84:1528-34. [PMID: 22930498 DOI: 10.1002/jmv.23378] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The current study, covering the period 2004-2009, is a part of long-term monitoring for hepatitis A virus (HAV) strains circulating in St Petersburg, Russia. The HAV RNA was isolated directly from the sera of hepatitis A patients and RT-PCR was carried out using primer pairs for VP1/2A and VP1 genomic regions. PCR products were sequenced and 324 nucleotides from VP1/2A and 332 from the VP1 region were used for phylogenetic analysis. The results show that the IA subtype was the most common circulating subtype during the follow-up period, as found in the previous study: almost 90% of the isolated HAV strains belonged to the IA subtype. The large hepatitis A food-borne outbreak in St Petersburg in 2005 was caused by HAV IA. However, the proportion of HAV isolates belonging to subtype IIIA significantly increased in the period 2001-2009 (7.9%) compared to the period 1997-2000 (none found). The subtype IIIA was first found in St Petersburg in 2001 among a group of intravenous drug users. The increase in its circulation during the decade suggests that this previously unusual genotype has been permanently introduced into the general population of St Petersburg. These results indicate the usefulness of molecular epidemiological methods for studying changes in the circulation of HAV strains.
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Traoré KA, Rouamba H, Nébié Y, Sanou M, Traoré AS, Barro N, Roques P. Seroprevalence of fecal-oral transmitted hepatitis A and E virus antibodies in Burkina Faso. PLoS One 2012; 7:e48125. [PMID: 23110187 PMCID: PMC3478277 DOI: 10.1371/journal.pone.0048125] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Accepted: 09/27/2012] [Indexed: 11/18/2022] Open
Abstract
Hepatitis A virus (HAV) and hepatitis E virus (HEV) infections occur chiefly as a result of unhygienic conditions. The purpose of this study was to assess the seroprevalence of antibodies to both viruses in central Burkina Faso in the absence of a recorded hepatitis epidemic. Serum samples from 178 blood donors (131 males and 47 females) and from 189 pregnant women were collected from November 2010 to March 2012, at blood banks and medical centers in Burkina Faso. An immunochromatography test was used to screen for Anti-HAV IgM and IgG in a subgroup of 91 blood donors and 100 pregnant women. The seroprevalence of anti-HAV IgG was 14.3% [CI95, 7.1-21.4%] for all blood donors and 23% [CI95, 14.8-31.2%] for pregnant women. Anti-HEV IgG were detected using the ELISA kits Dia.pro and Wantai and were found in 19.1% [CI95, 13.3-24.9%] of the blood donors and 11.6% [CI95, 7.1-16.2%] of the pregnant women. The seroprevalences of anti-HAV and anti-HEV IgGs did not differ significantly between men and women blood donors. Anti-HAV IgM was detected in 3.3% of the blood donors and in 2% of the pregnant women. These findings for asymptomatic individuals indicate that the HAV and HEV circulate at low but significant levels. This is the first evaluation of the acute hepatitis virus burden in Burkina Faso and the underlying epidemiologic status of the population.
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Affiliation(s)
- Kuan Abdoulaye Traoré
- Centre de Recherche en Sciences Biologique Alimentaire Nutritionnelles (CRSBAN), Université de Ouagadougou, Ouagadougou, Burkina Faso
| | - Hortense Rouamba
- Centre National de Transfusion Sanguine, Ouagadougou, Burkina Faso
| | - Yacouba Nébié
- Centre médical de Samandin, Ouagadougou, Burkina Faso
| | | | - Alfred S. Traoré
- Centre de Recherche en Sciences Biologique Alimentaire Nutritionnelles (CRSBAN), Université de Ouagadougou, Ouagadougou, Burkina Faso
| | - Nicolas Barro
- Centre de Recherche en Sciences Biologique Alimentaire Nutritionnelles (CRSBAN), Université de Ouagadougou, Ouagadougou, Burkina Faso
- * E-mail: (PR); (NB)
| | - Pierre Roques
- Division of Immuno-Virologie, Institute of Emerging Diseases and Innovative Therapies, Commissariat à l'Energie Atomique (CEA), Fontenay-aux-Roses, France
- Unite Mixte de Recherche E1, University Paris Sud 11, Orsay, France
- * E-mail: (PR); (NB)
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Forbi JC, Agwale SM, Ndip LM, Esona MD. Genetic analysis of hepatitis A virus variants circulating among children presenting with acute diarrhea in Cameroon. J Med Virol 2012; 84:728-732. [DOI: 10.1002/jmv.23266] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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49
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Abstract
The diagnostic gold standard for hepatitis A is the detection of anti-hepatitis A virus (HAV) IgM antibodies and the determination of total anti-HAV by enzyme immunoassay. However, detection of HAV RNA can be useful in the diagnosis of patients without specific antibodies for hepatitis A and for the monitoring of infection. Studies using real-time PCR have demonstrated that HAV RNA can be detected not only in feces, but also in serum and saliva samples earlier than detection of antibodies, and that viremia may be present for a much longer period than the convalescent phase of hepatitis A. Alternative samples have been proposed for diagnosis, epidemiological studies, investigation of outbreaks and selection of persons receptive to vaccination. Understanding the events of clinical course that take place during the hepatitis A infection may lead to more effective diagnosis.
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Affiliation(s)
- Vanessa Salete de Paula
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Desenvolvimento Tecnológico em Virologia – Av. Brasil 4365, 21040–360, Rio de Janeiro, Brazil
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Nejati A, Makvandi M, Samarbafzadeh A, Neisi N, Moradzadegan H. Molecular epidemiology of hepatitis A virus in patients in the ahwaz region of Iran. J Med Virol 2012; 84:582-6. [DOI: 10.1002/jmv.23238] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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