Newcastle Disease — United States
The United States Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service confirmed three additional cases of virulent Newcastle disease in backyard exhibition chickens in California — one in Riverside County and two in San Bernardino County.
A complete list of confirmed cases is available on our website at .
Virulent Newcastle disease has not been found [previously] in commercial poultry in the United States since 2003.
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