A Vermont teenager who volunteered at the New England Aquarium is Boston's latest measles patient, the Boston Public Health Commission reports.
The commission says anybody who worked at or visited the aquarium's main building after noon on May 19 or 22 and who isn't sure of their measles immunity status, should stay away from the public until June 9 or June 12, depending on which day. Although measles usually shows up 10 to 12 days after exposure, it can take up to three weeks to develop.