A dead crow in Clairemont was found to have tested positive for West Nile Virus, San Diego County public health officials warned Friday.
The officials alerted county residents to take particular precautions against mosquitoes which can carry the virus.
The crow is the first bird to test positive for the disease this year. There have been no locally contracted cases of the virus in the county, but the danger of the contagion is still present.
The largely avian disease can be transferred to humans. Symptoms include headache, fever, fatigue, nausea, rash or swelling which can lead to serious illness or death. According to the county, in 2015, 44 San Diego County residents tested positive for West Nile virus and six died.
To limit contact with mosquitoes, guidelines from the county include finding and dumping out standing water, denying mosquitoes breeding grounds. Many items can hold stagnant water, such as old tires, buckets, toys, garbage cans, plant pots and wheelbarrows. Mosquito fish are available from the county for larger bodies of water.
Additionally, avoiding bites plays an important role in prevention. Tips include using DEET insect repellent, wearing long sleeves and pants and securing windows and screens in your home.
If you see a stagnant pool or other mosquito breeding grounds – or dead birds like hawks, jays, crows and owls – you are encouraged the contact the county Vector Control Program by calling 858-694-2888 or emailing vector@sdcounty.ca.gov.