The cumulative total of confirmed COVID-19 cases in the United States exceeded 66 million as of Monday, with the death toll surpassing 851,000, according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. Specifically, the country's case count rose to 66,375,579 while the death toll reached 851,451 as of 18:21 Eastern Standard Time (EST) Monday. A total of 524,266,897 doses of vaccines have been administered in the country, according to the CSSE tally.