Whooping cough, or pertussis, is a highly contagious bacterial infection caused by Bordetella pertussis. It primarily affects the respiratory system and is characterized by severe coughing fits that can cause difficulty breathing. The term "whooping" refers to the high-pitched sound that follows a coughing spell as the person gasps for air. Pertussis is most common in infants and young children but can affect people of all ages. Vaccination is the most effective way to prevent whooping cough.
