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Home News Longer mosquito season possible
David Morgan
575-528-5197 Office
575-649-0754 Mobile

Longer mosquito season possible

August 20, 2025 - Zoonotic Diseases - Safety

SANTA FE – The New Mexico Department of Health reminds people with weakened immune systems to take additional precautions to avoid mosquito bites, as increased rainfall and heat may drive a longer mosquito season than usual.

West Nile virus is the most common disease transmitted by mosquitoes in New Mexico, with most cases typically occurring in late summer, but this West Nile season may not be typical.

“With above-average rain and heat forecasted for New Mexico through October, mosquito season may last longer than usual,” said Dr. Erin Phipps, state public health veterinarian for the New Mexico Department of Health (NMDOH). “West Nile virus is expected to persist until the first local hard freeze.”

Recent studies have shown that people who take medications that affect the immune system known as B cell-depleting or B cell-modulating medications are at a higher risk for severe disease from viruses such as West Nile virus.

NMDOH recommends talking to your doctor about any medications or conditions that might affect your immune system, and how those might change your risk of diseases such as West Nile virus infection. Notify your doctor of any concerning changes to your health, such as headaches, fever, weakness, loss of balance, or confusion. Do not stop taking your medicines unless told to do so by your doctor.

Take extra precautions to avoid insect bites, including:

  • Use an approved insect repellent every time you go outside and follow the instructions on the label. EPA-approved repellents are those that contain DEET, picaridin, IR3535 or oil of lemon eucalyptus/para-menthane-diol.
  • Wear long sleeves and pants at dawn and dusk when mosquitoes are most active.
  • Remove or empty any items that hold water, such as old tires or cans. Drain birdbaths, wading pools, and plant saucers weekly.
  • Make sure rain barrels are tightly screened.
  • If you leave your house doors or windows open, make sure they have screens that fit tightly and have no holes. 

For any additional questions about West Nile virus and your health call the NMDOH Helpline at 1-833-SWNURSE (1-833 796-8773). You can also text questions to 66364 (NMDOH).


Media Contact

We would be happy to provide additional information about this press release. Simply contact David Morgan at 575-528-5197 (Office) or 575-649-0754 (Mobile) with your questions.