TY - JOUR T1 - MEasles outbreak—chicago, 1989 Y1 - 1989/11/01 N1 - 10.1001/archpedi.1989.02150230031016 JO - American Journal of Diseases of Children SP - 1273 EP - 1275 VL - 143 IS - 11 N2 - AS OF AUGUST 23, 1989, 1123 confirmed cases of measles have been reported to the Chicago Department of Health. Information is available for 1019 (91%) of these cases; 799 (78%) have occurred in preschool-aged children (less than 5 years old), including 340 (33%) children less than 16 months of age (i.e., too young for routine immunization). Blacks and Hispanics have accounted for 955 (94%) of the cases. Four measles-associated fatalities have been reported.Outbreak-control activities have included intensified surveillance and lowering of the recommended age for measles vaccination to 6 months during the outbreak, with revaccination at age 15 months for children vaccinated before the first birthday. Single-antigen measles vaccine is being used for children before the first birthday, and measles-mumps-rubella vaccine (MMR) is administered to older children. Seven new vaccination clinics have been established and have administered approximately 21,000 doses of vaccine; door-to-door vaccination teams in high-risk SN - 0002-922X M3 - doi: 10.1001/archpedi.1989.02150230031016 UR - http://dx.doi.org/10.1001/archpedi.1989.02150230031016 ER -