Ongoing hepatitis A outbreak in Europe 2013 to 2014: imported berry mix cake suspected to be the source of infection in Norway

B Guzman-Herrador; L Jensvoll; M Einöder-Moreno; H Lange; S Myking; K Nygård; K Stene-Johansen; L Vold

doi:10.2807/1560-7917.ES2014.19.15.20775

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Ongoing hepatitis A outbreak in Europe 2013 to 2014: imported berry mix cake suspected to be the source of infection in Norway
B Guzman-Herrador¹ , L Jensvoll² , M Einöder-Moreno^1,3 , H Lange^1,3 , S Myking^1,4 , K Nygård¹ , K Stene-Johansen⁴ , L Vold¹
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Affiliations: ¹ Department of Infectious Disease Epidemiology, Norwegian Institute of Public Health, Oslo, Norway ² Norwegian Food Safety Authority, Head Office, Ås, Norway ³ European Program for Intervention Epidemiology Training (EPIET), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden ⁴ Department of Virology, Norwegian Institute of Public Health, Oslo, Norway

Correspondence:
B Guzman-Herrador
BernardoRafael.Guzman.Herrador fhi.no
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Citation style for this article: Guzman-Herrador B, Jensvoll L, Einöder-Moreno M, Lange H, Myking S, Nygård K, Stene-Johansen K, Vold L. Ongoing hepatitis A outbreak in Europe 2013 to 2014: imported berry mix cake suspected to be the source of infection in Norway . Euro Surveill. 2014;19(15):pii=20775. https://doi.org/10.2807/1560-7917.ES2014.19.15.20775 Received: 14 Apr 2014

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Abstract

On 7 March 2014, an increase in hepatitis A virus (HAV) infections was identified in Norway. As of 12 April, 19 cases of HAV infection with a virus strain identical to an ongoing European outbreak have been identified. Six probable cases are currently under investigation. On 11 April, a frozen berry mix cake imported from another European country was found as the likely source of the outbreak; the importer has withdrawn the product in Norway.