WEST NILE VIRUS

Dr. Martin Fenstersheib, a Santa Clara County Health officer, confirmes at a news conference at his office in San Jose, Calif., Thursday, Sept. 16, 2004, that an unidentified 50-year-old San Jose, Calif., man is the first San Francisco Bay area man infected with West Nile virus. The man apparently became ill Aug. 25 after being bitten by mosquitoes. (AP Photo/Paul Sakuma)