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Recent "west nile virus" Stories, Video and Galleries
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Can a slight breeze really protect you from mosquitoes and West Nile Virus? That's what 7 On Your Side put it to the test.
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Can a slight breeze really protect you from mosquitoes and West Nile Virus? That's what 7 On Your Side put it to the test.
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Officials are warning residents after more than half a dozen birds in Contra Costa Co. tested positive for the West Nile virus this week.
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A woman who became ill in mid-July is the first recorded human case of West Nile virus in Santa Clara County so far this year.
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For the first time, a neighborhood in East San Jose has mosquitoes that tested positive for the West Nile virus and Santa Clara County plans to treat the area with pesticides on Friday, officials said.
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Contra Costa County officials are reporting more cases of West Nile virus throughout the Bay Area.
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Crews will be out in South San Jose Thursday evening, spraying insecticide against mosquitoes infected with West Nile Virus.
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Health officials say a second bird in Marin County has tested positive for West Nile Virus this year.
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A dead crow found in Antioch is Contra Costa County's first confirmed case of West Nile virus this year.
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A Bay Area lab has become an epicenter in the struggle to keep one step ahead of dangerous bugs.
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A Bay Area lab has become an epicenter in the struggle to keep one step ahead of dangerous bugs.
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On Monday, Contra Costa County officials will be spraying insecticide to kill mosquitoes at the former Concord Naval Weapons Station.
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Health officials say the first Monterey County resident to get West Nile virus since 2009 is out of the hospital and recovering.
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For the first time in seven years, San Francisco health officials believe a resident has caught the West Nile virus locally.
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Mosquito abatement couriers are helping the city control the West Nile virus in San Francisco.
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For the first time in seven years, San Francisco health officials are confirming a resident of the city has the West Nile virus.
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Officials say there are no signs of slowing for West Nile virus activity throughout Contra Costa County.
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Health officials say they found a bird infected with the West Nile virus near San Francisco City College.
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More dead birds and mosquitoes with West Nile virus have turned up in Contra Costa County.
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The West Nile virus has claimed its fourth victim of the year in California.
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Vector control districts in Contra Costa and Santa Clara counties will be conducting mosquito fogging in designated areas Tuesday.
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Vector control officials plan to spray parts of Mountain View where mosquitoes tested positive for West Nile virus.
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Crews will spray an area of Brentwood with insecticide tonight, days after dead birds and mosquitoes tested positive for West Nile.
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In Brentwood vector control began spraying at dusk to try to combat the West Nile virus.
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From sundown to 11 p.m., crews will fog the area around Brentwood where infected mosquitoes and birds were discovered.
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The summer salt marsh mosquitoes in Palo Alto do not carry West Nile virus but they are aggressive and vicious blood-sucking biters.
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Santa Clara County Vector Control is taking the unusual step of aerial spraying a stretch near Bayshore Road.
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From sundown to 11 p.m. Thursday, crews will fog the area around Brentwood where infected mosquitoes and birds were discovered.
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The war on the West Nile Virus is in full swing as the disease has killed 26 people and sickened hundreds nationwide.
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Across the nation, most of the country is under watch for cases of the deadly West Nile virus.
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Across the nation, most of the country is under watch for cases of the deadly West Nile virus.
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Pesticide trucks will be rolling through Brentwood to help control mosquitoes Wednesday night.
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Health officials are trying to capture a gray squirrel in the Menlo Park area after it tested positive for West Nile.
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An area of Brentwood will be fogged as part of an ongoing mosquito control effort.
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State agencies say they've identified eight times as many cases of West Nile virus in mosquitoes this year compared to last.
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A new federal ban on the use of mosquito-abatement pesticides is stoking fears of a severe West Nile season.
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Contra Costa County has logged its third human case of West Nile virus this year.
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Officials will be fogging for mosquitoes in Concord Friday night to try and control the spread of the West Nile Virus.
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A 49-year-old woman has been infected with West Nile virus, Contra Costa County's first human case of the virus this year, county officials confirmed Thursday.
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More birds infected with West Nile virus have been found in hot spots throughout Contra Costa County, the Contra Costa Mosquito and Vector Control District reported Tuesday.
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A mosquito sample collected in Oakley has tested positive for West Nile virus, the first such sample to test positive for the virus this year in Contra Costa County, a spokeswoman for the county's mosquito district said today.
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Mosquito and vector control inspectors have detected West Nile virus in a dead crow found in Walnut Creek.
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Three Contra Costa County residents are being treated for West Nile virus.
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Two animals in San Mateo County were found to be carrying West Nile Virus last month, the county's Mosquito and Vector Control District reported in a statement.
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A dead squirrel discovered in San Mateo is the first in San Mateo County to test positive for the West Nile virus this year, local scientists said.
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