Chicago Declares End to Measles Outbreak After 64 Cases

City health officials confirm no new cases in 42 days, attributing success to rapid vaccination and containment efforts.

The outbreak began on March 7, marking the first measles case in Chicago in five years.
A total of 64 cases were confirmed, with most linked to a migrant shelter in Pilsen.
Over 30,000 MMR vaccine doses were administered during the outbreak.
The last reported case was on April 20, allowing officials to declare the outbreak over after two incubation periods.
Health experts emphasize the importance of vaccination to prevent future outbreaks.