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Hepatitis A outbreak involving bread.

A R Warburton1, T G Wreghitt, A Rampling

  • 1Department of Community Medicine, Fulbourn Hospital, Cambridge.

Epidemiology and Infection
|February 1, 1991
PubMed
Summary
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A 1989 hepatitis A outbreak was linked to contaminated bread. Proper food handling, like using gloves, can prevent hepatitis A virus transmission through food.

Area of Science:

  • Epidemiology
  • Food Safety
  • Public Health

Background:

  • An outbreak of hepatitis A occurred in a group of villages in 1989, affecting over 50 residents.
  • The common factor identified among all confirmed cases was the consumption of bread from a specific source.

Purpose of the Study:

  • To identify the source and transmission route of the hepatitis A outbreak.
  • To recommend control measures to prevent further spread and future occurrences.

Main Methods:

  • Investigated the outbreak by interviewing confirmed cases and identifying common food exposures.
  • Analyzed the epidemiological data to pinpoint the most likely vehicle of transmission.

Main Results:

  • Bread purchased from a single shop or its outlets was the only common food item among cases.

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  • Contamination was attributed to soiled hands with skin lesions, indicating inadequate hygiene during food preparation.
  • Control measures successfully limited the spread of infection.

    • Conclusions:

    • Bread served as the primary vehicle for hepatitis A virus transmission in this outbreak.
    • Food handlers' hygiene, particularly handwashing and the use of protective barriers like gloves, is critical in preventing foodborne illness.
    • Implementing comprehensive control measures, including improved hygiene practices, is essential for managing and preventing infectious disease outbreaks.