There are now 206 confirmed cases of the measles in Rockland. 82 percent of those affected are 18 years of age or younger. Moviegoers in California have been warned they may have been exposed to the measles at a midnight showing of Avengers Endgame last week, and hundreds of passengers on a cruise ship docked at the Caribbean island of St. Lucia were quarantined after a crew member was confirmed with the disease.