States that once had the lowest rates have seen infections soar as the distribution of COVID-19 cases changes across the ...

Following research into harms of social media and cellphones among minors, U.S. states are bringing in policies to restrict ...

Eastern equine encephalitis is a rare but deadly virus spread by mosquitoes. An outbreak in the Northeast has raised alarm. What to know about symptoms and prevention.

Six states are expecting below normal temperatures this week, with some areas dropping as much as 20 degrees Fahrenheit.