Crow found in La Jolla tests positive for West Nile Virus

A dead crow discovered in La Jolla is the first bird in San Diego County this year to test positive for West Nile Virus.

A dead crow recently found in La Jolla was the first in San Diego County to test positive for West Nile Virus this year, the county Department of Environmental Health announced Oct. 30.

The crow was discovered Oct. 24 at a location west of Interstate 5 and south of La Jolla Cove. DEH doesn’t release the specific location where infected animals are found, to prevent the public from being lulled into a false sense of security, Supervising Vector Ecologist Chris Conlan told the La Jolla Light.

“That doesn’t mean that’s where the bird got infected,” he said. “Birds fly. … It could have been two towns over.”

The good news, Conlan said, is that West Nile season is nearly over, and it takes longer for the virus to replicate in mosquitoes once the weather cools.

The National Centers for Disease Control and Prevention reported that 4,725 people contracted West Nile virus this year, 219 of whom died, including 15 fatalities in California.

By contrast, San Diego County has only reported the dead American crow in La Jolla and a 19-year-old Escondido man who tested positive for WNV when he donated blood in August. He never became ill, according to the DEH.

About one in 150 people infected with West Nile virus will develop serious symptoms that could prove fatal, according to the agency. The risk is greater for people over 50 years old or who might have weakened immune systems. Four out of five people who are infected will not have any symptoms.

“This is a good reminder that West Nile virus is here, but that it can be prevented,”  said Jack Miller, DEH director. “We want to remind people that they can take some simple steps to protect themselves.”

The department recommends that people stay in around dawn and dusk, when mosquitoes are active, or wear long sleeves and pants; dump out water in plant saucers, buckets, wheelbarrows or old spare tires where the insects can breed; and report dead birds and green swimming pools at abandoned houses.

–City News Service

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Posted by Pat Sherman on Oct 30, 2012. Filed under Health & Science, La Jolla, News. You can follow any responses to this entry through the RSS 2.0. You can leave a response or trackback to this entry

1 Comment for “Crow found in La Jolla tests positive for West Nile Virus”

  1. There are many things you can do to minimise the risk of infection by the West Nile virus, especially if you are travelling in areas where mosquitos are prevalent:

    Stay indoors when the mosquito is lively – dawn, dusk and early evening
    Wear clothes that cover your skin when outdoors
    Use strong insect repellent all the time
    Make sure to spray clothing, too
    Keep window screens on the home or building you are staying in in good repair
    Do not touch dead birds

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