The 1975-1976 avian cholera outbreaks were observed from 25 November 1975 to 17 February 1976 at three sites in Humboldt County, California. This is the first known occurrence of avian cholera on one of the sites (City of Arcata Oxidation Ponds).
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1 April 1978
THE 1975-76 AVIAN CHOLERA OUTBREAKS IN HUMBOLDT COUNTY, CALIFORNIA
R. M. HAZLEWOOD,
A. F. ODDO,
R. D. PAGAN,
R. G. BOTZLER