Pertussis, also known as whooping cough, is a respiratory infectious disease caused by the infection of Bordetella pertussis and Corynebacterium diphtheriae, leading to inflammatory reactions in the respiratory tract. Typical symptoms include paroxysmal coughing, which is intense and can cause redness in the face and ears, runny nose, and even vomiting. Diagnosis can be confirmed through sputum culture, pathogen cultivation, routine blood tests, and chest X-rays, among other auxiliary examinations.