WASHINGTON - The United States registered a record high of over 510,000 daily COVID-19 cases on Monday, according to latest data of Johns Hopkins University. A total of 512,553 new cases and 1,762 new deaths were reported across the nation on Monday. The single-day increase of cases has set a new record since the onset of the pandemic in the country. Over the past week, nearly 1,660,000 new cases and over 10,000 new deaths were added to the tally, according to Johns Hopkins University. The 7-...