Imported rocket salad partly responsible for increased incidence of hepatitis A cases in Sweden, 2000-2001

K Nygård; Y Andersson; P Lindkvist; C Ancker; I Asteberg; E Dannetun; R Eitrem; L Hellström; M Insulander; L Skedebrant; K Stenqvist; J Giesecke

doi:10.2807/esm.06.10.00380-en

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Imported rocket salad partly responsible for increased incidence of hepatitis A cases in Sweden, 2000-2001
K Nygård¹ , Y Andersson¹ , P Lindkvist¹ , C Ancker² , I Asteberg³ , E Dannetun⁴ , R Eitrem⁵ , L Hellström⁶ , M Insulander² , L Skedebrant⁷ , K Stenqvist³ , J Giesecke¹
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Affiliations: ¹ Smittskyddsinstitutet (Swedish Institute for Infectious Disease Control, SMI), Stockholm ² The county medical officers of Stockholm, Sweden ³ The county medical officers of Västra Götaland, Sweden ⁴ The county medical officers of Östergötland, Sweden ⁵ The county medical officers of Blekinge, Sweden ⁶ The county medical officers of Region Skåne, Sweden ⁷ The county medical officers of Västerbotten,Sweden

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Citation style for this article: Nygård K, Andersson Y, Lindkvist P, Ancker C, Asteberg I, Dannetun E, Eitrem R, Hellström L, Insulander M, Skedebrant L, Stenqvist K, Giesecke J. Imported rocket salad partly responsible for increased incidence of hepatitis A cases in Sweden, 2000-2001. Euro Surveill. 2001;6(10):pii=380. https://doi.org/10.2807/esm.06.10.00380-en

Abstract

An increased incidence of domestic hepatitis A without any obvious source of infection in Sweden and a small outbreak in late spring 2001 led to the undertaking of a case-control study. Consumption of imported rocket salad was clearly associated with disease (odds ratio 9.1, 95% confidence interval 1.5 to 69). The importation of vegetables from countries where hepatitis A is endemic to countries where this disease is not endemic continues to be a public health problem.