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An outbreak of leptospirosis on a single farm in east Otago
M C Thomas1, A Chereshsky, K Manning
1Dunedin Hospital.
The New Zealand Medical Journal
|July 27, 1994
Abstract
Aims:
To present an outbreak of leptospirosis on a dairy farm which had an unvaccinated herd.
Methods:
Nine people working or living on the farm were tested for the presence of leptospira antibody by the microscopic agglutination test. Nineteen cows randomly selected, were also tested.
Results:
Three human cases and one suspected case were detected over a one month period (December 1992-January 1993). Seventy-nine percent of the dairy herd tested had serological evidence of infection with L hardjo.
Conclusions:
Leptospirosis continues to be a major occupational problem in New Zealand. The importance of herd vaccination and the use of protective clothing during milking is emphasised.