Haemophilus pertussis, also known as Bordetella pertussis, is a gram-negative bacillus that causes pertussis. Haemophilus pertussis is a gram-negative bacillus that produces pathogenic substances such as pertussis toxin, tracheal cytotoxin, heat-resistant toxin, and endotoxin, which can cause whooping cough, an acute respiratory infection. H. pertussis is mainly transmitted through the respiratory tract and is infectious. H. pertussis mainly affects infants and young children, causing lesions in the respiratory tract that lead to pertussis. The course of the disease is usually long, with a mild cough in the early stages of the disease, and paroxysmal spasmodic cough and dyspnea occurring 1 to 2 weeks after the disease has progressed, usually lasting for several weeks. The infection of hemophilus pertussis, need to go to the regular hospital in time for examination and treatment. At the same time, it is necessary to do a good job of protection to avoid spreading the disease to others.