In Minnesota, the HealthPartners system has seen a “precipitous decline” in COVID-19 hospitalizations, says Dr. Mark Sannes, an infectious disease physician and senior medical director for the system, which operates nine hospitals and more than 55 clinics. Butnow, nearly every admitted patient he does see is unvaccinated. “Less than 1% of our hospitalized COVID patients are vaccinated,"he said. In Ohio, at University Hospitals Cleveland Medical Center, only 2% of the COVID-19 patients admitted in the last month were vaccinated, said Dr. Robert Salata, the hospital's physician-in-chief. And at Sanford Health, which runs 44 medical centers and more than 200 clinics across the Dakotas, Minnesota and Iowa, less than 5% of the 1,456 patients admitted with COVID-19 so far this year were fully vaccinated, said spokesperson Angela Dejene.