Dr. Deborah Birx on Sunday said America is in a new phase in its ongoing fight against the coronavirus.
According to CNN, Dr. Birx said that the deadly virus is more widespread than when it first took hold earlier this year.
"What we are seeing today is different from March and April. It is extraordinarily widespread."
Her statement comes as the US has reported more coronavirus cases and deaths than any other country in the world.
The United States had reported more than 4.8 million cases of Covid-19 and at least 158,365 Americans have died.
Dr. Birx urged all Americans to follow health recommendations, including wearing a mask and practicing social distancing.
