Measles at an international gymnastics competition--Indiana, 1991.

On September 7, 1991, the Indiana State Department of Health (ISDH) was notified of three suspected measles cases among athletes from New Zealand (NZ) participating in an international gymnastics competition September 6-15 in Indianapolis (Marion County). Among those potentially at risk for measles were approximately 700 athletes and 1200 coaches, trainers, and managers from 51 countries; an estimated 2500 volunteers and staff; international media, families, and employees; and approximately 60,000 spectators attending the competition. This report summarizes the epidemiologic investigation of these cases.