Postexposure prophylaxis, isolation, and quarantine to control an import-associated measles outbreak--Iowa, 2004.

On March 12, 2004, a college student infectious with measles returned to Iowa from India by a commercial airliner; the case was subsequently linked to two other measles cases. This report updates information about this outbreak and provides details regarding vaccination, quarantine, and other measures used by Iowa public health authorities to interrupt disease transmission in a vulnerable population. The effective uses of quarantine and isolation during the outbreak underscore the utility of these public health tools in halting communicable disease transmission.