(CNN)The United States surpassed 11 million coronavirus cases on Sunday, according to data from Johns Hopkins University, as states across the country moved to enact restrictions aimed at slowing the spread of the virus.
The latest milestone comes just six days after the US recorded 10 million cases, per Johns Hopkins data. It was the fastest the US has added one million new cases since the pandemic began.
At least 45 states have reported more new infections this past week compared to the previous week, according to Johns Hopkins University.
"We have this firestorm of coronavirus all across the country," emergency medicine physician Dr. Leana Wen said. "It's not one or two hotspots, the entire country is a hotspot of coronavirus infection."
Even Wyoming is getting hit hard. On Saturday, the state set new records for Covid-19 hospitalizations and deaths, with 202 hospitalizations and 17 new deaths reported in one day.
Nationwide, more than 246,000 people have died -- including 1,266 new deaths reported on Saturday alone.
And while some officials toughen their restrictions, some say changing behavior is more important than shutting down.
More states are setting new rules
With the rapid acceleration of new infections, many states are scrambling to curb the virus with new restrictions.
The Navajo Nation will also implement stricter measures starting Monday, including virtual learning for students and the closure of non-essential government services.
"We are inching closer and closer to a major public health crisis in which we could potentially see our hospitals filling up with patients," Navajo Nation President Jonathan Nez said. "Our health care system on the Navajo Nation cannot sustain a long-term surge in COVID-19 cases."

Did they realize the seriousness of Covid-19? Social restrictions should have long been! Otherwise, so many people will not be infected and die. Those people are so pitiful!