Erschienen in:
01.11.2015 | Brief Report
Importance of molecular typing in confirmation of the source of a national hepatitis A virus outbreak in Norway and the detection of a related cluster in Germany
verfasst von:
Bernardo R. Guzman-Herrador, Marcus Panning, Kathrine Stene-Johansen, Katrine Borgen, Margot Einöder-Moreno, Daniela Huzly, Laila Jensvoll, Heidi Lange, Sigrid Maassen, Solveig Myking, Mette Myrmel, Christoph Neumann-Haefelin, Karin Nygård, Jürgen J. Wenzel, Ann Kristin Øye, Line Vold
Erschienen in:
Archives of Virology
|
Ausgabe 11/2015
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Abstract
In March 2014, after an increase of notifications of domestically acquired hepatitis A virus infections, an outbreak investigation was launched in Norway. Sequenced-based typing results showed that these cases were associated with a strain that was identical to one causing an ongoing multinational outbreak in Europe linked to frozen mixed berries. Thirty-three confirmed cases with the outbreak strain were notified in Norway from November 2013 to June 2014. Epidemiological evidence and trace-back investigations linked the outbreak to the consumption of a berry mix cake. Identification of the hepatitis A virus outbreak strain in berries from one of the implicated cakes confirmed the cake to be the source. Subsequently, a cluster in Germany linked to the cake was also identified.