Pasadena health officials are investigating a whooping cough outbreak after four cases were confirmed at a school.

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 or pertussis ...

With more and more young kids opting out of vaccines, the cases of pertussis or whooping cough have been on the rise in the United States of America, with more than six times as many cases of the ...

Low vaccination rates, particularly for the MMR and DTaP vaccines, are contributing to the outbreaks. Wisconsin's childhood vaccination rates are among the lowest in the U.S., well below the CDC's ...

Two new laboratory-confirmed cases of the highly contagious Bordetella pertussis or whooping cough reported this week brings ...

The first day of school is just days away in Haywood County, and health officials are keeping a close watch on a summertime outbreak of pertussis, also known as whooping cough. The county has ...

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 ...