The increase of 84,218 cases surpassed the previous record of 77,299 cases reached on July 16, and researchers at the University of Washington anticipate that the death toll from Covid-19 could reach 500,000 by February.

In 16 US states, daily records were set for new Covid-19 virus infections on Friday, including five key states for the Nov. 3 presidential election: Ohio, Michigan, North Carolina, Pennsylvania and Wisconsin.

Health experts did not give an explanation for these increases, but cited factors such as colder temperatures that made people stay indoors longer, fatigue from taking precautions, and returning students to classes in the classroom. schools and colleges.

“We are heading for substantial growth in the fall / winter,” said Chris Murray, director of the Institute for Medical Statistics and Evaluation.

However, the death toll could be lower by 130,000 if 95% of Americans wore masks, he said, echoing the recommendation made by renowned infectious disease specialist Anthony Fauci.

“The good news is that vaccines look promising. And we hope that by the end of November, the beginning of December, we will show that we have at least two, maybe more, but at least two safe and effective vaccines, “Fauci said in an interview with CNN.

Health Secretary Alex Azar attributed the increase in cases nationwide to people’s behavior, saying private meetings had become “a major factor in the spread of the disease”.

Asked about President Donald Trump’s statement Thursday during a debate with Democrat Joe Biden that the United States is close to “a turning point in the pandemic,” Azar told CNN that Trump has tried to give hope to people waiting for a vaccine. .