The outbreak prompted New York city officials to declare a public health emergency, and order residents in affected neighborhoods to be vaccinated or pay a $1,000 fine.
Before the measles, mumps and rubella vaccine became available in 1963, the CDC said an estimated 48,000 people were hospitalized with the disease each year, and 400 to 500 people died of the disease annually.
The widespread use of the MMR vaccine has led to a greater than 99% reduction in measles cases, according to the CDC. The disease was declared eliminated in the United States in 2000. However, measles would no longer be considered eliminated if it’s continuously transmitted for longer than 12 months.