Bird Infected With West Nile Virus Found Near City College of San Francisco

San Francisco public health officials today warned about the possible spread of the mosquito-borne West Nile virus after a dead bird infected with the virus was found recently near City College of San Francisco, the third virus-positive bird since 2007.

Public Health Department officials said the bird was found on Sept. 11 near the main campus of City College. 

While no human cases of the virus have been reported in the city since 2005, the infected bird indicates that the disease is present at the start of the city’s warm weather season, when mosquitoes tend to breed in stagnant water, according to the San Francisco Department of Public Health.

A coalition of San Francisco government agencies, including the Public Utilities Commission and the departments of environment, public works and public health, are urging residents to eliminate standing water from storm drains, water basins, ornamental ponds, lawns, bird baths, wading pools and leaking pipes to limit mosquito breeding.

Mosquito bites, which inject the disease into humans, may be avoided by wearing long pants and shirts, using repellants on exposed skin and placing screens on windows, public health officials said.

People over age 50 and those with weakened immune systems are particularly vulnerable to the virus. People suffering from a fever and headache for more than seven days may have the virus and should seek treatment, said Dr. Tomas Aragon, health officer for the city and county of San Francisco.

Residents who discover significant mosquito activity should report it to public health officials by calling 311. Those who find a dead bird are urged to notify the state of California at 1-877-WNV-BIRD.

Download the San Francisco Department of Public Health information release.

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