Whooping cough, also known as pertussis, is a highly contagious respiratory disease caused by the bacterium Bordetella pertussis. It is characterized by severe coughing fits that can make it difficult to breathe, often leading to a "whooping" sound when inhaling. The illness can affect people of all ages but is particularly dangerous for infants. Vaccination is the best way to prevent whooping cough. The DTaP vaccine is recommended for children, while the Tdap booster is advised for adolescents and adults. Early diagnosis and treatment with antibiotics can help reduce the severity and spread of the disease.