Article: West Nile virus infects four horses in California.

2004 JUL 19 - (NewsRx.com & NewsRx.net) -- California's first cases of horses with West Nile virus this year were confirmed in Riverside and San Bernardino counties as officials prepared for a second round of pesticide spraying in Fontana, where six humans contracted the mosquito-borne virus.

Four horses, three in Riverside and one in San Bernardino counties, were infected with West Nile and three were euthanized. A Riverside County horse that received the two-shot vaccination series survived, said Steve Lyle of the Department of Food and Agriculture.

Confirmation of the first cases of horses infected with West Nile sent owners to veterinarians and feed ...

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