Interstate measles transmission from a ski resort--Colorado, 1994.
During April 1-May 25, 1994, a chain of measles transmission began in Breckenridge, Colorado, and extended into nine additional states; a total of 247 measles cases were reported, representing 36% of all U.S. measles cases reported to the National Notifiable Diseases Surveillance System (excluding those reported from U.S. territories) through July 2 (week 26). The source of exposure was unknown but is believed to have been an out-of-state tourist who probably visited Breckenridge during March because 1) no measles cases had previously been reported in Colorado during 1994, and 2) the only common exposure appeared to have been at a ski resort visited by many out-of-state travelers. Persons associated with spread of measles from Breckenridge were predominantly school- and college-aged. This report summarizes the investigation of this chain of interstate measles transmission.
D000293:Adolescent; D000328:Adult; D003120:Colorado / Q000453:epidemiology; D004196:Disease Outbreaks; D005260:Female; D006294:Health Resorts; D006801:Humans; D008297:Male; D008457:Measles / Q000453:epidemiology* / Q000635:transmission*; D008875:Middle Aged; D012865:Skiing; D014195:Travel