CDC says U.S. measles cases hit 1,671 in 2026: what families and schools should do now about records, exclusions, and catch-up MMR shots
CDC’s April 3, 2026 measles update shows higher U.S. case counts, but not a new national vaccine schedule. The practical message for families and schools is simpler: check written MMR records now, understand who may be excluded after an exposure, and move quickly if catch-up vaccination or post-exposure treatment may be needed.
