Sacramento Stockton Modesto, CA, July 29, 2026 —

Health officials in the Bay Area have confirmed the presence of West Nile Virus (WNV) for the first time this year, announcing two human cases and the initial detection of the virus in mosquitoes. This marks the beginning of the WNV season in the region.

The virus, which is transmitted through the bite of an infected mosquito, does not cause illness in most people, but can lead to serious neurological disease in rare cases. Symptoms can include fever, headache, body aches, and in severe instances, disorientation, coma, tremors, and paralysis.

The confirmation of human cases and virus-positive mosquito pools serves as a reminder for residents to take precautions against mosquito bites. These measures are crucial during the warmer months when mosquito populations are typically at their highest.

While specific details regarding the individuals who contracted the virus were not immediately available, health departments are urging the public to remain vigilant. Standard preventative measures recommended by health officials include:

  • Wearing EPA-approved insect repellent when outdoors.
  • Draining standing water from around homes and yards, as mosquitoes breed in stagnant water. This includes items like flowerpots, birdbaths, and clogged gutters.
  • Wearing long sleeves and pants, particularly during dawn and dusk when mosquitoes are most active.
  • Ensuring that window and door screens are in good repair to prevent mosquitoes from entering homes.

Further surveillance and mosquito control efforts are expected to continue throughout the season as officials monitor the spread of West Nile Virus. The public is advised to report any dead birds they find, as these can also be an indicator of WNV activity in the area.



Story summarized from the original created by Albert Gregory on patch.com, see more information here.

Media gallery

About The Author
SignalNewsAI