pertussis in missouri: evaluation of nasopharyngeal culture, direct fluorescent antibody testing, and clinical case definitions in the diagnosis of diagnostic test for pertussis in routine use in the united states has both high sensitivity and high specificity. during a statewide increase in the incidence of pertussis in missouri, we studied the clinical features of 153 patients with suspected pertussis in the greater st. louis area from whom a specimen for pertussis culture had been taken between 15 may and 19 september 1989. in this cross-sectional study, nasopharyngeal cultures were more likely to be positive for persons whose specime ...19938443307
seroimmunity to polioviruses and b. pertussis. population data for residents of kansas city. 19826285162
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