Overview
- Nassau County health officials confirmed a measles infection in a local child and opened a joint investigation with the New York State Department of Health to identify exposures and limit spread.
- The patient is under age 5 and not vaccinated, and officials say the child did not attend daycare or school as they work to notify anyone who may have had contact.
- Measles spreads through the air and from contaminated surfaces, and people can pass it from four days before a rash appears to four days after it starts.
- Health leaders urge up-to-date MMR vaccination, with two doses recommended by the CDC, and ask anyone with symptoms to call a provider before seeking care to avoid exposing others.
- New York has recorded 10 measles cases so far in 2026, and this is Nassau County’s first since March 2024, signaling persistent risk across the region.