More Mosquitoes Testing Positive For West Nile Virus

There are more mosquitoes testing positive for West Nile Virus in the Coachella Valley.

The latest positive samples were captured in Thermal and Oasis and Mecca.

The Coachella Valley Mosquito and Vector Control District has increased its mosquito control treatments in those areas, using trucks and helicopters. The aerial application is within the area bordered by Avenue 68, Grant St,  Avenue 74,  and Buchanan St. 

The District will continue enhanced mosquito surveillance to reduce the number of mosquitoes and interrupt further transmission of the virus.

No human cases of WNV have been reported in the Coachella Valley or in California so far in 2024.

There is no human vaccine for West Nile Virus. Residents should be proactive against mosquito bites by using EPA-registered insect repellent containing at least thirty percent of an active ingredient like DEET, picaridin, oil of lemon eucalyptus, or IR3535, not essential oils.

About West Nile Virus: WNV spreads when a female mosquito bites an infected bird. The mosquito then can become a carrier and transmit the virus to people. Most infected people will have no symptoms. Others will develop fever, headaches, and body aches; hospitalization is required in some cases, and in rare cases, death occurs. People with symptoms should contact their health care provider.

Prevent mosquito bites: 

  • Don’t go outside around dawn and dusk when these mosquitoes are most active.
  • Wear insect repellent. EPA registered ingredients such as DEET, picaridin, oil of lemon eucalyptus, or IR3535 (as directed on the product label).
  • Cover up. Wear long sleeve shirts and long pants when mosquitoes are most active.
  • Check window and door screens to prevent mosquitoes from entering your home.

Prevent mosquitoes around your home:

  • Check lawn drains for water and debris. Clean drains regularly.
  • Inspect yards for standing water sources. Drain water that collects under potted plants, bird baths, tires, and any other water holding containers.
  • Clean and scrub pet dishes and water features weekly.
  • Swimming pools, ponds, and fountains require working pumps and regular maintenance.


Aedes aegypti mosquito biting a human hand. The pest spreads West Nile Virus.

Photo from Alpha Media USA Portland OR