West Nile virus cases confirmed in multiple states; Colorado reports 41 cases, including three deaths.

West Nile virus cases have been confirmed across multiple states, including Iowa, Utah, Massachusetts, and Colorado. In Iowa, a middle-aged adult tested positive, while Utah and Massachusetts report increased mosquito-borne virus activity. In Massachusetts, ten cities and towns are at high risk, with no human cases reported yet. Colorado has seen 41 cases, including three fatalities. Health officials advise using EPA-registered insect repellents, wearing long sleeves, and removing standing water to prevent mosquito bites.