VIRGINIA BEACH - The city's Department of Public Health is warning people to protect themselves from mosquito bites after mosquito pools and sentinel chickens have tested positive for West Nile virus.
Mosquito-control biologists collected the positive samples from areas, including Princess Anne Plaza, Magic Hollow, Green Run and Windsor Woods in July and August, a news release from the city's Public Health and Public Works departments said.
Chicken blood samples were collected during the same times, and the positive sentinel chicken was being kept in the Magic Hollow area.
The city's mosquito control division has increased its mosquito surveillance and control in those areas.
The uncommon viral disease is spread to birds, humans and other mammals through the bite of infected mosquitoes. Most people infected have no symptoms, but some have mild flulike symptoms and a small number develop more serious neurological disorders, the news release said. People older than 50 or with immune system disorders are at greater risk.
Four human cases of West Nile virus have been reported in the city since 2003.
Statewide as of July 27, there hadn't been any documented human West Nile infections in Virginia. In 2009, Virginia had five confirmed human West Nile infections. There were no deaths.
The city offered these tips:
> Wear long, loose and light-colored clothing.
> Use insect-repellent products registered with the EPA: no more than 50 percent DEET for adults and less than 30 percent DEET for children. Use care when applying repellents to children.
> Turn over or remove containers in your yard where rainwater collects, such as plant trays, buckets, and toys.
> Clean birdbaths and wading pools weekly.
> Secure window and door screens so mosquitoes cannot enter the home.

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