West Nile found in Yuba County | TheUnion.com

West Nile found in Yuba County

A dead crow with West Nile Virus was found a mile north of Marysville an agricultural biologist confirmed today.

The bird was found on June 17 and was the first case in Yuba County. It’s just a matter of time before West Nile occurs here, said Brian Steger, agricultural biologist for the Nevada County Agricultural Commission.

“This is going to start heating up for sure,” Steger said. He predicted there will be many cases of the disease this season.

The first human case in the state was diagnosed last week in Kern County and caused the California Department of Heath Services to issue a warning.

About one in 150 people infected will get extremely ill with migraine-like headaches, nausea, disorientation, and sometimes coma and death, according to the U.S. Centers for Disease Control and Prevention. About 20 percent get a harsh flu-like illness for several weeks, and most show no symptoms at all.

The virus typically begins in Southern California then spreads up the valley. Birds and horses are usually the first indicators of the disease before human cases are discovered. So far, 100 dead birds and 2 horses have been found with West Nile in the state.

Nevada County biologists bleed sentinel flocks of chickens and capture mosquitos with carbon dioxide traps bi-weekly in efforts to detect the virus.

Local cases usually first appear in July and August, said Peggy Zarriello, an environmental health specialist in an article last week.

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