PORTLAND, Ore. (KOIN) -- Another measles exposure site has been discovered in Clackamas County, the Oregon Health Authority announced on Wednesday. Officials say people may have been exposed to measles at the Canby Rodeo (694 NE 4th Ave, Canby, OR) on Aug. 18, between 7:30 p.m. and 11 p.m. "People who were at this location [...]