The U.S. death toll from Covid-19 surpassed a grim new milestone of 250,000 lives lost as New York City’s public school system – the nation’s largest – called a halt to in-classroom instruction, citing a jump in coronavirus infection rates.

Dr. Anthony Fauci, the top U.S. infectious disease expert, said he has had no contact with President-elect Joe Biden’s coronavirus transition team and sees no reason to quit to join that effort when there is so much to do now to fight the surging pandemic.

U.S. regulators authorized emergency use of the first experimental antibody drug for Covid-19 in patients who are not hospitalized but are at risk of serious illness because of their age or other conditions.

The number of coronavirus patients in U.S. hospitals breached 50,000, the highest level in nearly three months, as a surge in infections threatens to push the nation’s health care system to the edge of capacity.

The White House coronavirus task force warned that much of the country is in the grips of an “unrelenting” surge in Covid-19 cases and urged tough countermeasures, as the reported number of U.S. infections hit a new daily record of more than 91,000.

The United States saw the country’s highest-ever number of new Covid-19 cases in the past two days, keeping the pandemic a top election issue as Vice President Mike Pence travels the U.S. to campaign despite close aides testing positive.

The number of coronavirus deaths reported in the United States reached its highest total in two months, offering more evidence that the pandemic was gaining fresh momentum across the country as cooler weather sets in.

U.S. President Donald Trump had no Covid-19 symptoms for the past 24 hours, with a physical examination and his vital signs showing his condition remains sable, White House physician Sean Conley said.

White House officials said they would block new vaccine guidance that would delay hurried approvals ahead of the Nov. 3 election.

President Donald Trump returned to the White House after a three-night hospital stay for treatment for Covid–19, facing a staff hit by a wave of infections and a campaign further shadowed by the pandemic four weeks before Election Day.