@drjoe_md: Whooping cough, or pertussis, is a highly contagious respiratory disease caused by the bacterium *Bordetella pertussis*. It is characterized by severe coughing fits that can end in a high-pitched "whoop" sound when the person breathes in. The disease primarily affects infants and young children, but it can occur in people of any age. Symptoms typically begin with mild respiratory issues resembling a common cold, but as the disease progresses, the coughing fits become more intense and can last for weeks. #pediatrics #sickkids #parentingtips #cough