Trends in Disease Severity and Health Care Utilization During the Early Omicron Variant Period Compared with Previous SARS-CoV-2 High Transmission Periods — United States,December 2020–January 2022
1.CDC COVID-19 Emergency Response Team; 2.Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland; 3.Booze Allen Hamilton, McLean, Virginia; 4.Becton, Dickinson and Company, Franklin Lake, New Jersey.