The Wasco County Courthouse was evacuated for a time Monday afternoon after the Sheriff’s Office received a suspicious letter similar to one received in other Oregon counties.  Wasco County Sheriff Rick Eiseland said they had received word from Grant and Harney counties about identical letters that had contained a white powder, and reportedly a worker in Grant County became sick after it was opened.  Eiseland said the letter in Wasco County was unopened, so it was double wrapped and left in the Sheriff’s Office as the Courthouse was cleared, adding the Sheriff’s Office has been wiped down and staff was to be checked by health officials.  A hazmat team has been called in to deal with the letter.  The Courthouse was reopened after a sweep of the building, but the Sheriff’s Office remained closed.  Eiseland indicated about a dozen other Oregon counties have received similar letters, including Hood River and Sherman counties.  Hood River County Sheriff Matt English confirmed receiving such a letter, saying he believed it had been opened but no illness or issues were reported, and the Sheriff’s Office was closed as a precaution.  Eiseland and English said both the Oregon State Police and FBI are investigating.