Fourth person tests positive for West Nile virus in San Diego County - cbs8.com

Fourth person tests positive for West Nile virus in San Diego County  cbs8.comFourth San Diego County resident tests positive for West Nile virus this summer  NBC 7 San Diego4 San Diego County residents test positive for West Nile Virus since June  fox5sandiego.comSan Diego County steps up mosquito treatment as West Nile activity continues  cbs8.comFourth Case of Human West Nile Virus Has County Health Officials Urging Caution  San Diego County News Center