The first case of measles in Greenville County Schools has been confirmed at Crestview Elementary School, with one bus route from Greer Middle School and Greer High School also exposed. Anyone who went to Crestview Elementary on Jan. 6 may have been exposed. The exposure is part of a larger measles outbreak in the Upstate that began last October, now with the total number of cases exceeding 400. Parents and staff at all three schools were notified of the potential exposure, and anyone required to quarantine was contacted individually.