U.S. Hits Record Number of New Covid Cases Twice in Same Week

New daily Covid-19 cases in the U.S. set a fresh record on Wednesday, as the World Health Organization warned governments that easing self-isolation rules and testing requirements come with a trade-off between slowing transmission rates and keeping economies running.

Cases in the U.S. climbed to 300,887 a day on a seven-day average, according to a Wall Street Journal analysis of Johns Hopkins University data.