CDC steps up measles travel warning after spread in airplane

The Centers for Disease Control and Prevention has updated its warning about the risk of contracting measles while traveling, after the agency tallied dozens of cases so far this year in travelers who were infectious while flying on airplanes within the U.S.

"Travelers can catch measles in many travel settings including travel hubs like airports and train stations, on public transportation like airplanes and trains, at tourist attractions, and at large, crowded events," the agency now says, in an update published Wednesday.

Since the beginning of the year, the CDC has received at least 62 reports of travelers who were contagious with the highly transmissible virus while flying into the U.S. or within the country, a spokesperson for the health agency told CBS News in a statement.