Here's a revised version:
"The recent uptick in measles cases both in the United States and worldwide has led the CDC to issue a new advisory on March 18.
The advisory strongly recommends that parents ensure their children receive both doses of the measles, mumps, and rubella (MMR) vaccine, which has been proven to be 97% effective.
This increase in cases coincides with a concerning trend: a decline in vaccination rates and a rise in exemptions for the 2022-2023 school year, particularly among kindergartners.
While overall vaccination coverage against measles is still high enough to prevent widespread outbreaks, there is apprehension among public health experts regarding potential outbreaks in pockets of vulnerable communities with lower vaccination rates."