High Quality Content by WIKIPEDIA articles Pertussis, also known as whooping cough ( /ˈhuːpɪŋ kɒf/ or /ˈhwuːpɪŋ kɒf/), is a highly contagious bacterial disease caused by Bordetella pertussis. Symptoms are initially mild, and then develop into severe coughing fits, which produce the namesake high-pitched "whoop" sound in infected babies and children when they inhale air after coughing. The coughing...