(Portland, OR)  --  Health officials say the number of E. coli cases in Oregon is up to 12, and up to 28 in Washington.  Most of the patients reportedly ate at Chipotle restaurants, 43 locations of which have been temporarily closed in Oregon and Washington.  The ages of the patients range from one to 61.  No deaths from the outbreak have been reported.  Health officials say contaminated produce may have been the cause of the E. coli cases.