Endemic Hepatitis E in two Nordic Countries

H. Norder, L. Sundqvist, L. Magnusson, Solvej Østergaard Breum, M. Lofdahl, Lars Erik Larsen, Charlotte Kristiane Hjulsager, L. Magnius, B.E. Bottiger, F. Widen

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    Abstract

    Antibodies against hepatitis E virus (anti-HEV) were found in 248 Swedish and Danish patients between 1993 and 2007. Most patients were symptomatic and tested for anti-HEV due to travel abroad. Among patients with known country of infection, most were infected in Asia, mainly on the Indian subcontinent. However, 29 patients were infected in Europe, nine of these had HEV IgM and/or HEV RNA in serum. In sera from 65 of 141 tested patients HEV RNA could be detected, and 63 strains could be typed by limited sequencing within ORF2. HEV RNA was found in sera from 71% of the patients with HEV IgM and IgG and in 18% of the patients with only detectable HEV IgG. It was also found up to three weeks after the onset of disease in 67% of the patients with known date of onset. Patients infected in Europe were infected by genotype 3, and were older than those infected by genotype 1 (mean age 55.3 vs 30 years, p
    Original languageEnglish
    JournalEurosurveillance (Online Edition)
    Volume14
    Issue number19
    Pages (from-to)20-28
    ISSN1025-496X
    Publication statusPublished - 2009

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