Two additional cases of West Nile virus have been confirmed in humans in Massachusetts, as public health officials raise the risk level in 9 more cities and town. So far this summer, there have been ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Experts are warning of a potential outbreak of West Nile virus in the U ...

High counts of West Nile virus cases are being reported in the U.S. this year, according to federal health data — and health officials are warning the season for this mosquito-borne disease isn't over ...

The world's deadliest animal is simple to kill, but that doesn't mean it's easy to get rid of them. Mosquitoes across New York City have been found with West Nile virus, and city officials have begun ...