The number of new Covid-19 cases in the United States last week rose 13% to more than 393,000, approaching levels last seen during the summer peak, according to a Reuters analysis.

U.S. cases of the novel coronavirus crossed 8 million, rising by 1 million in less than a month, as another surge in cases hits the nation at the onset of cooler weather.

The number of new Covid-19 cases rose 11% in the United States last week compared to the previous seven days, with infections spreading rapidly in the Midwest, which reported some of the highest positive test rates, according to a Reuters analysis.

Covid-19 shattered records for new cases in the U.S. Midwest, straining hospitals, and will darken New York’s Broadway theaters until June, a decision the Actors’ Equity Association union called “difficult but responsible.”

The number of new Covid-19 cases in the United States rose two weeks in a row in 27 out of 50 states, with North Carolina and New Mexico both reporting increases above 50% last week, according to a Reuters analysis.

The number of tests coming back positive for Covid-19 is topping 25% in several states in the U.S. Midwest as cases and hospitalizations also surge in the region, according to a Reuters analysis.

The number of new cases of the novel coronavirus reported in the United States fell 15 percent last week from the previous seven days, and deaths fell for a fourth week in a row, according to a Reuters analysis.