July 11, 2014; 8:00 PM ET
After a rain-free weekend for much of the New York City area, the risk of severe thunderstorms and flash flooding will ramp up quickly early next week. more >
About a fifth of children seen by their doctors for persistent coughs may actually have whooping cough, a new study suggests.
A new map shows the path of H1N1 "swine flu" as it spread across the United States in the fall of 2009, when the brunt of the pandemic hit the country.