Early, intense West Nile season may signal a severe year for the mosquito-borne illness, CDC says

Why the 2026 Season Is Raising Concerns

The CDC has reported that mosquito surveillance programs in several states are detecting West Nile virus activity earlier than expected. Public health experts note that an early start often allows the virus more time to circulate among birds and mosquitoes before reaching peak transmission season.

Warm temperatures, increased rainfall in some regions, and favorable breeding conditions for mosquitoes may contribute to higher mosquito populations and greater virus transmission.

Although it’s too early to predict the exact number of infections this year, officials say the early activity serves as an important warning for communities to strengthen mosquito control efforts and for residents to take preventive measures.

How to Protect Yourself

Reducing mosquito bites remains the most effective way to prevent West Nile virus infection. Health experts recommend:

• Using EPA-registered insect repellents containing DEET, picaridin, IR3535, or oil of lemon eucalyptus.
• Wearing long-sleeved shirts and long pants when outdoors, especially at dawn and dusk when mosquitoes are most active.
• Eliminating standing water around homes where mosquitoes can breed, including buckets, flower pots, birdbaths, and clogged gutters.
• Ensuring window and door screens are in good repair to keep mosquitoes outside.

• ADVERTISEMENT

  ←PreviousNext→