Whooping cough is an acute respiratory infectious disease caused by Bordetella pertussis. It often manifests as repeated severe coughing, and the course of the disease can last for 1 to 2 months or even longer.
The cough occurs suddenly and violently, but there are often no obvious abnormalities between attacks. Pertussis in young infants is easily complicated by pneumonia, encephalopathy, pulmonary hypertension, and can even lead to death. immunization is a very important measure to ensure that vaccinated children do not become seriously ill or die.