| prevalence of diphtheria and tetanus antibodies and circulation of corynebacterium diphtheriae in são paulo, brazil. | the introduction of routine vaccination against tetanus and diphtheria in brazil has decreased the incidence and changed the epidemiology of both diseases. we then investigated the prevalence of corynebacterium diphtheriae carrier status and diphtheria and tetanus immunity in são paulo, brazil. from november 2001 to march 2003, 374 individuals were tested for the presence of c. diphtheriae in the naso-oropharynx and of serum diphtheria and tetanus antibodies. participants were all healthy indivi ... | 2007 | 17906776 |