A mosquito that can carry yellow fever has turned up in San Diego.
County officials on Tuesday said the black-and-white striped Aedes aegypti (AE'-diss AE'-jip-tee), or yellow fever mosquito, was recently found in offices at the 32nd Street Naval Station.
It's uncertain how the tropical species got there but it's previously shown up in Central California and in twoLos Angeles County cities.
Experts say the mosquito is aggressive and bites during the day. It's capable of spreading yellow fever, dengue (DAIN'-gay) fever and chikungunya (CHIH'-koon-goon-yuh).
Authorities say people can help stop the mosquitoes' spread by reporting sightings, using insect repellant and dumping stagnant water.