New coronavirus cases have surged to an all-time high at nursing homes across the country despite federal efforts to shield residents through aggressive testing and visitor restrictions, a new report shows. Federal data shows 10,279 COVID-19 cases during the week of Nov. 1, the most recent data available. The figures surpassed the previous high of 9,903 cases in late July, according to a report by the American Health Care Association and National Center for Assisted Living.