US marks deadliest day of Covid-19 pandemic as experts mull expanding vaccine distribution

The United States reported 3,865 Covid-19 deaths on Wednesday, the highest number of deaths reported in a single day since the pandemic began. The nation's death toll as of Thursday stands at more than 364,500, according to data from Johns Hopkins University, while the number of people who have been infected has topped more than 21.53 million. The Centers for Disease Control and Prevention's most recent forecast projected there will be between 405,000 and 438,000 deaths by the end of the month. The previous forecast, published December 30, projected up...