Updated Map
Current 2018 Invasive Aedes Mosquito activity in San Diego County:
https://www.sandiegocounty.gov/content/sdc/deh/pests/aedes.html
The announcement comes days after the state confirmed that at least four people in California have died of West Nile virus in 2018.
http://www.latimes.com/local/lanow/la-me-ln-st-louis-encephalitis-20181001-story.html