title: A serological investigation of Mycoplasma pneumoniae infection on the Witwatersrand.
abstract: Sera from patients with respiratory disease were examined for antibody to Mycoplasma pneumoniae by complement fixation test. During the study period of about 6 years, a 3-year cycle of infection was observed, which coincided with some epidemics in the UK and USA, suggesting the possibility of an approximately simultaneous world-wide spread. The epidemics lasted about 18 months each, during which the incidence of infection was over 10 times that of the interepidemic periods.
mesh_terms: D000907:Antibodies, Bacterial / Q000032:analysis; D003168:Complement Fixation Tests; D004196:Disease Outbreaks / Q000453:epidemiology*; D006801:Humans; D009174:Mycoplasma / Q000276:immunology; D009175:Mycoplasma Infections / Q000453:epidemiology*; D013019:South Africa
chemical_list: D000907:Antibodies, Bacterial