HARRISBURG, Pa. (AP) — Tens of thousands of U.S. medical workers are suddenly out of work as casualties of measures to prioritize coronavirus patients at hospitals and of the economic troubles the crisis is creating. Hospitals are plucking professionals from the industry to treat the burgeoning numbers of people with COVID-19, but others are being left behind. Many nurse anesthetists in Pennsylvania have been laid off, though they are particularly critical to the coronavirus response. Big-city specialist groups, tiny hospitals and big multistate systems are seeing big revenue dropoffs. Minnesota reported that over 13,600 practitioners or technicians filed unemployment claims in the last half of March.