Whooping cough, medically known as pertussis, is a highly contagious bacterial infection that affects the airways.

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 ...

Whooping cough is known as the "100-day cough" because symptoms can be prolonged. Initially, the cold-like symptoms can last ...

The Pasadena Public Health Department Health announced Wednesday it is investigating an outbreak of whooping cough involving four confirmed cases at Don Benito Fundamental School. The department is ...

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 ...

CLEVELAND, Ohio — Whooping cough, a highly infectious respiratory infection that laid low in recent years, has come roaring back. In Ohio, whooping cough cases have doubled in a year, spiking from ...

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 ...