Ten new measles cases were confirmed in Lewis County, the article says.

Local health authorities announced the cluster and warned about risk to vulnerable residents.

The piece says measles spreads easily through the air, especially where vaccination is low.

It reports 11 documented cases in the immediate outbreak zone.

Every confirmed patient in that count is reported to be unvaccinated.

Neighboring Otsego County has its own spike, and many of those cases are unrelated.

Jefferson County issued a health advisory, and clinics are watching for fever and rash.

Nurses are contact tracing, and clinics are expanding access to the MMR vaccine.

Read the full article on the Lewis County measles cases and the vaccination findings.