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.

Regeneron Pharmaceuticals Inc.’s coronavirus antibody cocktail – the experimental treatment that U.S. President Donald Trump received – significantly reduced medical visits in a trial of nearly 800 patients with mild-to-moderate Covid-19.

UW Health University Hospital in Madison, Wisconsin has been rushing to convert available space into units for Covid-19 patients, as the state’s medical facilities struggle to keep pace with a surge in new infections.

The U.S. government will pay as much as $1.19 billion to Eli Lilly to secure nearly 1 million doses of the company’s experimental Covid-19 antibody treatment, a drug similar to a treatment that U.S. President Donald Trump received.

The United States, Russia and France set new daily records for coronavirus infections as a second wave swelled across parts of the Northern Hemisphere, forcing some countries to impose new curbs.

New York, the former epicenter of the U.S. Covid-19 pandemic, became the fourth U.S. state to surpass half a million coronavirus cases amid a nationwide surge in infections.

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.

Researchers called for more research into using blood from recovered Covid-19 patients – or so-called convalescent plasma – as a potential treatment, after a small trial of hospitalized patients in India found it was of no benefit.

New York, New Jersey and Connecticut urged their residents to not travel between the three states as the U.S. Northeast sees a rise in Covid-19 cases, while California said major theme parks including Disneyland would not be opening anytime soon.