Overview
- Massachusetts DPH reported an out-of-state visitor with confirmed measles moved through Logan Terminals B and C on Dec. 11–12 and stayed at the DoubleTree by Hilton Hotel Boston–Westborough during the same period.
- In Colorado, health officials said a traveler with measles passed through Denver International Airport’s B Concourse on Dec. 12, arriving at Gate B45 at 7:24 p.m. and departing from Gate B84 at 9:41 p.m.
- Colorado officials noted the Denver traveler was fully vaccinated with mild symptoms, which lowers but does not eliminate the risk of transmission, and exposed passengers will be contacted directly.
- State agencies said they are working with the CDC and airlines to identify and notify potentially exposed passengers, and advise anyone who develops symptoms to call a provider before seeking in-person care.
- Officials reiterated prevention guidance: two MMR doses are about 97% effective, vaccination within 72 hours of exposure may prevent illness, monitor for symptoms for up to 21 days, and the U.S. has recorded nearly 2,000 measles cases this year.