General Information

Contact Dept

  • Phone:
    (559) 600-3200
  • Address:
    1221 Fulton Mall
    Fresno, CA 93721
  • Email Department

a summary
Last Updated by Patrick Barnett
  Mosquito Borne Illnesses
Required caption by Patrick Barnett

Mosquito Season Has Arrived

The Fresno County Department of Public Health and local Mosquito Abatement Districts work in partnership with State and Federal agencies to protect our community from mosquitoes and mosquito-borne illnesses.

Map of  Mosquito Abatement Districts in Fresno County
 (click to enlarge)


More information about:

Vector-Borne Disease Section - 2013 Annual Report

Consolidated Mosquito Abatement District  

Fresno Mosquito & Vector Control District  

Fresno Westside Mosquito Abatement District (Twitter @fwmad)

Aedes aegypti


The yellow fever mosquito, Aedes aegypti, has been detected in Fresno County.

This mosquito is not native to California and is an efficient carrier of diseases such as dengue, yellow fever, and chikungunya. No illnesses associated with this mosquito have been reported so far.

Aedes aegypti is a small, dark mosquito with white markings and banded legs. It may be active around dusk and dawn but bites most often during the day and often bites indoors.

Fresno County residents are urged to:

  • Report mosquito bites received during the day. 
  • Report mosquitoes which match the description above.

Public Health Alert.pdf (English)    Aviso de Salud Publica.pdf  

More info from the California Department of Public Health  

More info from the Centers for Disease Control and Prevention  

West Nile Virus

West Nile Virus (WNV) is one of a group of disease-causing viruses that are spread by mosquitoes. Mosquitoes become infected with WNV when they feed on birds which carry the virus. The virus can then be transmitted to humans and other animals through the bite of an infected mosquito. Most people infected with WNV do not feel ill but some will experience mild flu-like symptoms. A smaller percentage of individuals develop serious complications. Hospitalization and even death can result from WNV infection. 

 Buzz Graphic

 08231_common raven126x127.png08231_stellars jay125x125.png  

To Report a Dead Bird:
Call the hotline at
877-WNV-BIRD (877-968-2473) OR
click to submit an online report. 

Guidelines for Dead Bird Disposal  

 More Info on West Nile Virus:

coflogo2.PNGFresno County Department of Public Health
09086_fightthebite.pngCalifornia Department of Public Health
cdfa.PNGCalifornia Department of Food and Agriculture – Equine WNV  

cdc.PNGCenters for Disease Control and Prevention


2007-09-11 WNV Survivor.gif

 WNV Survivor Video
WNV Survivor Video (Spanish) 
“Fight the Bite!” Presentations & Resources