For the second year in a row, the US has surpassed 25,000 whooping cough cases — another sign of the risks of falling vaccination levels.

Whoopingcough might sound like a disease from another era. But the illness, also called pertussis, is alive and well in the U.S. Known as a childhood illness, whooping cough is actually most common in ...

WASHINGTON — For the second year in a row, the US has surpassed 25,000 whooping cough cases — another sign of the risks of falling vaccination levels. Often called the "100-day cough," whooping cough ...