Document Detail

Hepatitis A in New South Wales, Australia from consumption of oysters: the first reported outbreak.
MedLine Citation:
PMID:  10722139     Owner:  NLM     Status:  MEDLINE    
Between 22 January and 4 April 1997, 467 hepatitis A cases were reported to the New South Wales Health Department, Australia. To identify the cause of the outbreak, we conducted a matched case-control study, and an environmental investigation. Among 66 cases and 66 postcode-matched controls, there was a strong association between illness and consumption of oysters (adjusted odds ratio 42; 95 % confidence interval 5-379). More than two-thirds of cases reported eating oysters, including one third of cases and no controls who reported eating oysters in the Wallis Lake area. A public warning was issued on 14 February, and Wallis Lake oysters were withdrawn from sale. Hepatitis A virus was subsequently identified in oyster samples taken from the lake. Hepatitis A virus poses a special risk to consumers who eat raw oysters because it can survive for long periods in estuaries and cause severe disease.
S Conaty; P Bird; G Bell; E Kraa; G Grohmann; J M McAnulty
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Epidemiology and infection     Volume:  124     ISSN:  0950-2688     ISO Abbreviation:  Epidemiol. Infect.     Publication Date:  2000 Feb 
Date Detail:
Created Date:  2000-03-29     Completed Date:  2000-03-29     Revised Date:  2010-03-03    
Medline Journal Info:
Nlm Unique ID:  8703737     Medline TA:  Epidemiol Infect     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  121-30     Citation Subset:  IM    
AIDS/Infectious Diseases Branch, NSW Health Department, North Sydney, Australia.
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MeSH Terms
Case-Control Studies
Disease Outbreaks* / prevention & control
Hepatitis A / epidemiology,  etiology*,  prevention & control
Likelihood Functions
Logistic Models
Middle Aged
New South Wales / epidemiology
Odds Ratio
Ostreidae / virology*
Shellfish / virology*
Water Microbiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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