A dead crow found in North Park tested positive for West Nile virus, prompting county environmental health officials to remind people on Wednesday to protect themselves from mosquitoes that can spread the disease to people.
The virus is primarily a bird disease, but it can be transmitted to humans when certain types of mosquitoes feed on an infected bird and then bite people, a county statement read.
The crow is the first detection of West Nile virus in San Diego County this year, with no human cases reported this year.
West Nile virus remains a potentially deadly threat. In 2015, 44 San Diego County residents tested positive for West Nile virus and six county residents died.
Warmer weather allows mosquito season to start earlier and the pests’ activity has already been detected by the county. In response, San Diego County’s Vector Control is increasing surveillance and treating mosquito breeding sources. This strategy includes monitoring around 1,600 potential mosquito breeding sites and applying larvicide by air, boat, truck and hand crews.
Residents were urged to dump out standing water or remove items that can hold water, such as plant saucers, rain barrels, buckets, garbage cans, toys, old tires and wheelbarrows. The Vector Control Program is also offering free mosquito fish, which can be placed in stagnant water sites to control mosquito breeding.
Residents were also advised to wear long sleeves and pants, and wear insect repellent while outdoors to protect themselves.
Mosquito activity or mosquito breeding sources can also be reported to the Vector Control Program by calling 858-694-2888 or emailing vector@sdcounty.ca.gov.