(Portland, OR)  --  A TriMet operator has been confirmed to have COVID-19.  TriMet says the operator didn't have symptoms while at work and hasn't been at work since March 20th, because the operator stayed home after a concern of exposure to the virus.  Health officials say the risk to other TriMet workers and riders is low.  The operator worked out of the Merlo facility which has been cleaned multiple times over the past 10 days along with all of the buses.