Due to the recent rain and warming temperatures, people are advised to watch out for mosquitos and avoid leaving standing water outside.
"It takes only a tiny amount of water to breed mosquitoes," said John Stroh, manager of the San Joaquin County Mosquito and Vector Control District in a news release.
Containers, old tires, leaking faucets, children's toys, tarps, buckets and wheel barrows are among items property owners should inspect, Stroh said.
Since horses are susceptible to West Nile virus, horse owners are advised to contact their veterinarians about timely vaccinations.
Mosquito district officials ask the public to report any wild birds such as crows, ravens, jays or magpies that have been dead less than 48 hours and show no signs of decomposition to the California Department of Public Health, at 877-WNV-BIRD (877-968-2473) or Fight the Bite.
For more information, call 982-4675 or toll free at 800-300-4675, or visit San Joaquin County Mosquito and Vector Control District.
Contact reporter Ross Farrow at email@example.com.