(CNN) A Covid-19 vaccine likely won't be "widely available" in the US until "several months" into next year, Dr. Anthony Fauci, the director of the National Institute of Allergy and Infectious Diseases, said Friday.

"I think as we get into 2021, several months in, that you would have [a] vaccine that would be widely available to people in the United States," Fauci told the Washington Post's Bob Costa during a Post Live event.

The United States on Tuesday recorded more than 1,000 daily deaths from the coronavirus for the first time since May, another grim sign the country is struggling to contain the pandemic six months after it emerged in the U.S.

The daily death toll from Covid-19 had been falling steadily for months after peaking at over 2,000 in mid-April, but deaths began trending upward again earlier this month as the virus stormed across the South and Southwest.

SYDNEY/LONDON (Reuters) - Global coronavirus infections surged past 15 million on Wednesday, according to a Reuters tally, with the pandemic gathering pace even as countries remain divided in their response to the crisis.

In the United States, which has the highest number of cases in the world with 3.91 million infections, President Donald Trump warned: “It will probably, unfortunately, get worse before it gets better.”

U.S. prosecutors have charged two Chinese nationals, said to be working for China’s state intelligence bureau, for their alleged involvement in a massive global hacking operation that targeted hundreds of companies and governments for more than a decade.

The risk of nasty side effects in the Moderna and Oxford trials should be made clear now, before it ends up as fodder for the skeptics.

A coronavirus vaccine developed by the University of Oxford appears safe and triggers an immune response.

Trials involving 1,077 people showed the injection led to them making antibodies and T-cells that can fight coronavirus.

The findings are hugely promising, but it is still too soon to know if this is enough to offer protection and larger trials are under way.