SAN DIEGO, CA — The number of pertussis cases, also known as whooping cough, are on the rise in San Diego County.

Nearly half of this year's cases were among people who had never received a dose of whooping cough vaccines, Oregon officials ...

Oregon health officials are alarmed over the state's rising pertussis case count, which is expected to beat the state's ...

The number of pertussis, or whooping cough, cases in Oregon are on track to hit an all-time high by the end of the year, ...

HUNTINGTON, W.Va. (WSAZ) - Whooping cough cases are on the rise, according to the Centers for Disease Control and Prevention, ...

Oregon is expected to beat the state’s record for whooping cough, also known as pertussis, cases by the end of the year, as ...

Public health officials Thursday reported a marked increase in the number of pertussis — or whooping cough — cases this year ...

Symptoms of whooping cough typically start five to 10 days after exposure but can take up to 21 days to develop. After a slight fever and cough, the cough gets worse and symptoms ...

Madison County is the latest in the state to warn the public of an increase in cases of pertussis, also known as whooping ...

A whooping cough outbreak is currently making its way across the Inland Northwest, leaving many families worried about ...

“As it gets worse, the cough can become severe and last for weeks or even months. The coughing can make it hard to breathe.