SummaryMassachusetts has confirmed two new cases of West Nile virus, bringing the state’s total to eight this season. With the risk level now “high” in several areas, health officials urge residents to use mosquito repellent and cover exposed skin until the first frost. Learn what West Nile virus is, how common it is in the U.S., its symptoms, and why experts say public awareness and prevention remain critical as mosquito season continues.