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In November 1982, Meade County, Kentucky health officials noted a sudden increase in the incidence of hepatitis A. Using a standardized interview of 73 cases (68 serologically confirmed), and 85 controls (all negative for antibody to hepatitis A virus), the most important risk factor identified was household use of untreated water from a single spring. A dose-response relationship was found for consumption of unboiled spring water. Water samples taken from the spring during the outbreak were contaminated with fecal coliforms.
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L. A. Tallon, D. C. Love, Z. S. Moore, and M. D. Sobsey Recovery and Sequence Analysis of Hepatitis A Virus from Springwater Implicated in an Outbreak of Acute Viral Hepatitis Appl. Envir. Microbiol., October 1, 2008; 74(19): 6158 - 6160. [Abstract] [Full Text] [PDF] |
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