An international traveler with the measles may have exposed a number of South Bay residents to the virus at a variety of locations within Santa Clara County — including stops at Stanford University, the Apple visitor center, and the Santa Clara Macy's — during a trip earlier this month, health officials said.

The person contracted measles overseas and has since been hospitalized, but not before visiting 20 places in San Jose, Santa Clara, Mountain View, Sunnyvale and Cupertino in a period spanning Sunday, March 16 and Friday, March 22.