|Title||Update: A food-borne outbreak of hepatitis a in the Netherlands related to semi-dried tomatoes in oil, January-February 2010|
|Author(s)||Petrignani, M.; Harms, M.; Verhoef, L.; Hunen, R. van; Swaan, C.; Steenbergen, J. van; Boxman, I.; Sala, Peran I.; Ober, H.J.; Vennema, H.; Koopmans, M.; Pelt, W. van|
|Source||Eurosurveillance 15 (2010)20. - ISSN 1025-496X|
|Publication type||Non-refereed article in scientific journal|
Between 31 December 2009 and 10 February 2010, 13 patients were infected by an identical hepatitis A virus strain not previously detected in the Netherlands. They had not been abroad and were widely distributed over the Netherlands. A case-control study including 12 cases and 44 controls identified semi-dried tomatoes in oil as the source of the outbreak (odds ratio: 20.0; 95% confidence interval: 1.5-274). The virus was not detected in any of 81 tested food samples. International trace-back is still ongoing.