Update: A food-borne outbreak of hepatitis A in the Netherlands related to semi-dried tomatoes in oil, January-February 2010

M Petrignani; M Harms; L Verhoef; R van Hunen; C Swaan; J van Steenbergen; I Boxman; R Peran i Sala; H J Ober; H Vennema; M Koopmans; W van Pelt

doi:10.2807/ese.15.20.19572-en

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Update: A food-borne outbreak of hepatitis A in the Netherlands related to semi-dried tomatoes in oil, January-February 2010
M Petrignani¹ , M Harms ² , L Verhoef³ , R van Hunen¹ , C Swaan⁴ , J van Steenbergen⁴ , I Boxman⁵ , R Peran i Sala⁶ , H J Ober⁷ , H Vennema³ , M Koopmans³ , W van Pelt²
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Affiliations: ¹ Department of Infectious Disease Control, Municipal Health Service (GGD Zuid-Holland West), Zoetermeer, the Netherlands ² Epidemiology and Surveillance Unit, Centre for Infectious Disease Control, National Institute for Public Health and the Environment (Rijksinstituut voor Volksgezondheid en Milieu, RIVM), Bilthoven, the Netherlands ³ Laboratory for Infectious Diseases and Screening, Centre for Infectious Disease Control, National Institute for Public Health and the Environment (Rijksinstituut voor Volksgezondheid en Milieu, RIVM), Bilthoven, the Netherlands ⁴ Preparedness and Response Unit, Centre for Infectious Disease Control, National Institute for Public Health and the Environment (Rijksinstituut voor Volksgezondheid en Milieu, RIVM), Bilthoven, the Netherlands ⁵ Food and Consumer Product Safety Authority (Voedsel en Waren Autoriteit), Zutphen, the Netherlands ⁶ Food and Consumer Product Safety Authority (Voedsel en Waren Autoriteit), the Hague, the Netherlands ⁷ Food and Consumer Product Safety Authority (Voedsel en Waren Autoriteit), Amsterdam, the Netherlands

Correspondence:
M Petrignani
m.petrignani ggdzhw.nl
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Citation style for this article: Petrignani M, Harms M, Verhoef L, van Hunen R, Swaan C, van Steenbergen J, Boxman I, Peran i Sala R, Ober H J, Vennema H, Koopmans M, van Pelt W. Update: A food-borne outbreak of hepatitis A in the Netherlands related to semi-dried tomatoes in oil, January-February 2010. Euro Surveill. 2010;15(20):pii=19572. https://doi.org/10.2807/ese.15.20.19572-en Received: 28 Apr 2010

Abstract

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.