SEATTLE (AP) — Nursing homes around the country have been complaining that they lack adequate testing to identify COVID-19 patients. But in the Seattle area, teams from UW Medicine have been conducting testing of all residents and staff at several skilled nursing facilities _ even those that haven’t had a single positive case before. Doctors and public health officials say that conducting such blanket testing is key to quickly identifying and containing cases before they become outbreaks. Gov. Jay Inslee this week announced that the state intends to more than double its workforce of employees devoted to contact tracing from 700 to 1,500, with help from the National Guard.