CDC reports an early start to the West Nile virus season, with 48 human cases—including 38 severe neuroinvasive cases—reported by June 30, 2026, the highest number by this time since 2004. An average of 10 cases is usually seen by the end of June, and 23 states have documented virus activity, the most in a decade. With millions of Americans expected to be outdoors for the 250th Independence Day weekend, CDC urges people to use EPA‑registered insect repellents, wear long loose‑fitting clothing, avoid outdoor activity between dusk and dawn, and keep mosquitoes out with screens or air conditioning. State and local health departments continue mosquito monitoring and control efforts. “These findings remind us that mosquito season is well underway,” said Dr. Erin Staples.
Source: Centers for Disease Control and Prevention (CDC).
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