Nursing homes saw drop in COVID-19 cases after first dose of vaccine: Study Print this article The prioritization of nursing homes for coronavirus vaccines may be yielding results, even before most staff and residents receive a second dose. New research from the Center for Health Policy Evaluation in Long-Term Care, an industry-backed group, compared 797 nursing homes that conducted their first vaccination clinics from Dec. 18 to Dec. 27 to 1,709 facilities that did not. Three weeks after the clinics were held, vaccinated nursing homes saw a 48% decline in new COVID-19 cases among residents. Those that had not had clinics saw a decline of only 21%. Among staff, new cases fell 33% in the facilities that had clinics, but they fell only 18% in those that had not.