An outbreak of hepatitis A affecting a nursery school and a primary school

N. McFarland, M. Dryden, Mary Ramsay, R. S. Tedder, Siew Lin Ngui

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Between March and June 2008, 12 cases of hepatitis A were notified in Winchester. Cases were from a primary school and a nursery school with no direct linkage. Hepatitis A virus (HAV) RNA sequenced from nine cases confirmed the strain in both schools to be identical. The outbreak could have affected three other schools and a maternity unit and was controlled by immunization and screening of neonates in the maternity unit by dried blood spots. No neonates were infected and no further cases were reported until 5 months later when the index case's mother became infected with same strain of virus associated with the outbreak despite vaccination. Neither the source of the outbreak or the subsequent infection of the index case's mother was identified; however, with the timing of the cases continued transmission in the community by children with asymptomatic infection or a recurrent source cannot be ruled out.

Original languageEnglish
Pages (from-to)336-343
Number of pages8
JournalEpidemiology and Infection
Volume139
Issue number3
DOIs
Publication statusPublished - Mar 2011

Keywords

  • Hepatitis A
  • outbreaks

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