It's a respiratory illness that may start out like a cold. But pertussis, also known as whooping cough, can last for weeks or months.

Bird flu is increasingly sparking concern across the country and in Illinois, following news this week of the first human ...

California is experiencing an increase in cases of whooping cough (also known as pertussis), a highly contagious bacterial disease that can be spread though coughing and can cause severe illness, ...