One human West Nile virus case confirmed, three others suspected in Yuba County

09/20/2012 12:00 AM

09/20/2012 9:32 AM

Yuba County health officials report one confirmed and three probable human cases of West Nile virus among county residents.

The virus was confirmed in an Olivehurst resident who was hospitalized. Of the three other probable cases, one is from Olivehurst, one from Marysville and the third from a rural area of the county, according to a county news release.

Two of the three are recovering after hospitalization for meningitis-like and flu-like symptoms. The third suffered less severe flu-like symptoms, officials said.

Health officials stress that the individuals may not have been infected in the area where they live, but they say the cases highlight the importance of taking measures to avoid mosquito bites.

They noted that the risk of infection for humans, horses and other mammals increases in late summer and fall.

Health officials urge people to:

Use mosquito repellents approved by the Environmental Protection Agency.

Avoid being outdoors at dawn and dusk when mosquitoes are most active.

Make sure screens on doors and windows are secure and not broken or torn.

Drain all standing water around the outside of the house, including gutters, jar lids, tires and flower pot trays.

The Sutter-Yuba Mosquito and Vector Control District continues to monitor mosquito activity and plans to increase surveillance and prevention efforts to reduce mosquito numbers using traps.

Officials said current plans are to treat the Olivehurst area today and increase treatment in the Hallwood area.

Additional information is available at


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