title: Pertussis outbreaks--Massachusetts and Maryland, 1992.
abstract: During November 1992, cases of pertussis among students in Massachusetts and Maryland were reported to the respective state health departments. This report summarizes the investigation of and approaches to controlling these outbreaks.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks / Q000517:prevention & control; D006801:Humans; D007223:Infant; D008396:Maryland / Q000453:epidemiology; D008404:Massachusetts / Q000453:epidemiology; D012574:Schools; D014917:Whooping Cough / Q000453:epidemiology* / Q000517:prevention & control / Q000635:transmission