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Improving preparedness to respond to cross-border hepatitis A outbreaks in the European Union/European Economic Area: towards comparable sequencing of hepatitis A virus

T. Enkirch, E. Severi, H. Vennema, L. Thornton, J. Dean, ML. Borg, AR. Ciccaglione, R. Bruni, I. Christova, SL. Ngui, K. Balogun, V. Němeček, M. Kontio, M. Takács, A. Hettmann, R. Korotinska, A. Löve, A. Avellón, M. Muñoz-Chimeno, R. de Sousa, D....

. 2019 ; 24 (28) : . [pub] -

Jazyk angličtina Země Švédsko

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/bmc20025799

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.

Carlos 3 Institute of Health Madrid Spain

Center for Virology Medical University of Vienna Vienna Austria

Centre for Disease Prevention and Control Riga Latvia

Croatian Institute of Public Health Zagreb Croatia

Department of Infectious Diseases and Global Health University of Southern Denmark Odense Denmark Statens Serum Institut Copenhagen Denmark

European Centre for Disease Prevention and Control Solna Sweden

European Programme for Public Health Microbiology Training Solna Sweden Public Health Agency of Sweden Solna Sweden

Health Board Tallinn Estonia

Hellenic Centre for Disease Control and Prevention Athens Greece

HSE Health Protection Surveillance Centre Dublin Ireland

Institute of Microbiology and Immunology Ljubljana Slovenia

Karolinska Institutet Stockholm Sweden European Centre for Disease Prevention and Control Solna Sweden

Landspitali National University Hospital Reykjavik Iceland

Ministry of Health Msida Malta

National Center of Infectious and Parasitic Diseases Sofia Bulgaria

National Institute for Health and Welfare Helsinki Finland

National Institute for Public Health and the Environment Bilthoven the Netherlands

National Institute of Health Dr Ricardo Jorge Lisbon Portugal

National Institute of Health Rome Italy

National Institute of Public Health Bucharest Romania

National Institute of Public Health Prague Czech Republic

National Public Health Institute Budapest Hungary

National Reference Centre for Hepatitis A Villejuif France

National Reference Laboratory for HAV Regensburg University Medical Center Regensburg Germany

National Virus Reference Laboratory Dublin Ireland

Norwegian institute of Public Health Oslo Norway

Public Health Agency of Sweden Solna Sweden

Public Health England London United Kingdom

Robert Koch Institute Berlin Germany

Sciensano Directorate Infectious diseases in humans Brussels Belgium

Scientific Institute of Public Health Brussels Belgium

Statens Serum Institut Copenhagen Denmark

Citace poskytuje Crossref.org

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$a Improving preparedness to respond to cross-border hepatitis A outbreaks in the European Union/European Economic Area: towards comparable sequencing of hepatitis A virus / $c T. Enkirch, E. Severi, H. Vennema, L. Thornton, J. Dean, ML. Borg, AR. Ciccaglione, R. Bruni, I. Christova, SL. Ngui, K. Balogun, V. Němeček, M. Kontio, M. Takács, A. Hettmann, R. Korotinska, A. Löve, A. Avellón, M. Muñoz-Chimeno, R. de Sousa, D. Janta, J. Epštein, S. Klamer, V. Suin, SW. Aberle, H. Holzmann, K. Mellou, JL. Ederth, L. Sundqvist, AM. Roque-Afonso, SK. Filipović, M. Poljak, L. Vold, K. Stene-Johansen, S. Midgley, TK. Fischer, M. Faber, JJ. Wenzel, J. Takkinen, K. Leitmeyer,
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$a 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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