“The measles outbreak that started at Disneyland and one other California theme park is expanding, with 59 confirmed cases in patients ranging in age from 7 months to 70 years. The California Department of Public Health has linked 42 of these cases to people who visited Disneyland or Disney’s California Adventure Park.
Initially, cases were linked to people who visited the parks in mid-December, but health officials now say that other people with measles were at the parks in January while infectious and also have spread the disease.”
(Source: Disneyland Measles Outbreak Hits 59 Cases And Counting : Shots – Health News : NPR