The incubation period of whooping cough generally has no autonomous discomfort symptoms. If there is close contact with a patient and the body lacks antibodies, suspecting the presence of this pathogen, corresponding auxiliary examinations can be conducted for diagnosis. Bacteriological examinations and fluorescent antibody methods can be performed, using nasopharyngeal swab secretions smear or nasal mucosa impression smear fluorescent antibody staining to detect specific antigens, with an early positive rate of 75%-85%. Complement fixation tests in serology can also be conducted to detect specific antibodies, effectively aiding in the diagnosis of atypical cases.