Each summer, the ancient negotiation between human settlement and the insect world resumes — but in 2026, the terms have shifted. West Nile virus has reached its highest early-season case count in over two decades, with an unusual proportion of infections striking the nervous system, while Eastern equine encephalitis continues its grim arithmetic of one-in-three fatalities. Drought and warmth have conspired to concentrate the conditions that accelerate transmission, and with no vaccines or antivirals in existence for either disease, the only shield available is human behavior itself.
West Nile Cases Surge Early; CDC Warns of Severe Neurologic Complications
West Nile virus can cause permanent disability or death; EEE is fatal in approximately one-third of cases and causes permanent neurologic damage in survivors.