Serologic evidence of west nile virus infection in patients with exanthema in hungary

Katalin N. Szomor, Zita Rigó, Enikõ Bán, Lívia Nagy, Teodóra Szalkai, Zsuzsanna Balogh, Emõke Ferenczi, Mária Takács

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Abstract

The presence of WNV in Europe has been well known for decades, although the first human infections and avian outbreaks were diagnosed in Hungary only in 2003. An annual average of 6-8 cases of the neuroinvasive form ofWNVinfection has been detected in the region since then, but a higher number (17) of WNV associated neuroinvasive disease occurred in 2008. In 2004, a surveillance system was established for monitoring WNV-associated meningo-encephalitis cases in Hungary, but a milder type of illness (with fever, rash and/or influenza like symptoms) is not followed. Fifty-two sera of 45 patients with mild clinical symptoms (fever, exanthema) were tested for anti-WNV antibodies in 2008 in a retrospective study by immunofluorescence test and ELISA. Seven patients had antibodies against WNV, serologic evidence of recent WNV infection was found in 4 out of the 7 patients. Infections could be acquired predominantly in August and in September, which seems to be a risk period for WNV in Hungary. The possibility of a recent WNV infection should be taken into consideration in the occurrence of fever and rush at late summer. Differential diagnosis of exanthematous patients should include WNV serology tests and should be done routinely.

Original languageEnglish
Pages (from-to)157-167
Number of pages11
JournalActa microbiologica et immunologica Hungarica
Volume58
Issue number2
DOIs
Publication statusPublished - Jun 1 2011

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Keywords

  • Exanthema
  • Serology
  • West Nile virus

ASJC Scopus subject areas

  • Immunology and Microbiology(all)

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