Los Angeles, CA, July 13, 2026 —

Los Angeles County Public Health officials have confirmed the first human case of West Nile virus (WNV) for 2026. The affected individual resides in the Antelope Valley area.

West Nile virus is transmitted through the bite of an infected mosquito. While many people infected with WNV do not develop symptoms, approximately one in five will develop a fever or other symptoms such as headache, body aches, joint pains, vomiting, diarrhea, or rash. Less than one percent of those infected will develop a serious neurological illness, such as encephalitis or meningitis.

Public health officials are reminding residents to take precautions to protect themselves from mosquito bites and to help reduce mosquito breeding sites. Recommended measures include:

  • Drain standing water: Mosquitoes lay their eggs in stagnant water. Residents should regularly empty containers that hold water, such as flowerpots, birdbaths, wading pools, and old tires.
  • Use insect repellent: When outdoors, use an EPA-approved insect repellent to protect against mosquito bites.
  • Wear protective clothing: Cover arms and legs with long-sleeved shirts and pants, especially during dawn and dusk when mosquitoes are most active.
  • Install or repair screens: Ensure windows and doors have tight-fitting screens to keep mosquitoes out of homes.

While specific details about the individual case, including the date of onset or severity of illness, were not provided, the confirmation of the first human case typically signals an increase in WNV activity in the region. Health departments often monitor mosquito populations and test them for the presence of the virus as part of their surveillance efforts.

Further information on West Nile virus, prevention methods, and current surveillance data is available through the Los Angeles County Department of Public Health website.



Story summarized from the original created by Google News on news.google.com, see more information here.

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