White House coronavirus task force coordinator Dr. Deborah Birx said on Sunday that the U.S. is in a "new phase" of the pandemic, urging people to follow public health guidance as cases continue to climb in many parts of the United States. "What we're seeing today is different from March and April," Birx said on CNN's State of the Union. "It is extraordinarily widespread — it's into the rural as equal urban areas." The U.S. has surpassed more than 4.6 million confirmed cases of the coronavirus and 154,000 deaths, according to data from Johns Hopkins University. Cases have skyrocketed in many Southern and Western states in recent months, and members of the White House's coronavirus task force are warning of emerging hot spots in the Midwest.