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West Nile virus found in sentinel chickens, more mosquitoes in Lake County
LAKEPORT, Calif. – Two mosquito samples and two sentinel chickens in Lake County tested positive for West Nile virus this week.
This year, 10 mosquito samples, two dead birds, and two sentinel chickens have tested positive for West Nile virus in Lake County, according to the Lake County Vector Control District.
West Nile virus activity has been detected in Clearlake, Clearlake Oaks, Lower Lake, Kelseyville, Middletown and Upper Lake this year, officials said.
Vector Control said no human cases of West Nile virus illness have been reported in Lake County in 2015.
“We’re finding more mosquitoes in backyard swimming pools this year,” said Jamesina Scott, Ph.D., district manager and research director of the Lake County Vector Control District. “With the drought, people have stopped maintaining their swimming pools to conserve water, and when a pool is not chlorinated and filtered it can produce thousands of mosquitoes every day. Those mosquitoes are the vectors of West Nile virus and fly up to five miles away.”
Scott recommends that residents with out-of-service pools and spas contact the district for free mosquito-eating fish.
The Lake County Vector Control District advises the public to take the following steps:
– Drain or dump any standing water that may produce mosquitoes.
– Defend yourself by using an effective insect repellent that contains Picaridin, IR3535, Oil of Lemon Eucalyptus, or DEET.
– Dress protectively when outside, and make sure screens on doors and windows are in good condition.
– Contact the district for any additional help controlling mosquitoes around your home.
“It may be hard to think about preventing mosquito bites when the wildfire threat takes center stage,” said Lake County Health Officer, Dr. Karen Tait. “However, it is more important than ever to take steps to prevent West Nile Virus during this emergency. It would be ironic to get through the wildfire, only to come down with this avoidable infection.”
While less than 1 percent of individuals (about 1 in 150 people) infected with West Nile virus will develop severe illness from West Nile virus infection, the disease can cause symptoms that can last for several weeks, and neurologic effects can be permanent. In some individuals, the infection can be fatal.
People over age 50 and diabetics are at risk for the more severe forms of the disease.
The most recent confirmed case of human West Nile virus infection in Lake County was in 2014, health officials reported.
Residents may contact the Lake County Vector Control District to report neglected pools, request service for mosquito problems, or to get mosquitofish at 707-263-4770 or fill out a service request online at www.lcvcd.org .
For more information about West Nile virus, visit http://www.westnile.ca.gov/ .
Information about mosquito repellents can be found on the US Centers for Disease Control and Prevention Web site at http://www.cdc.gov/westnile/faq/repellent.html .