The White House coronavirus task force warned that much of the country is in the grips of an “unrelenting” surge in Covid-19 cases and urged tough countermeasures, as the reported number of U.S. infections hit a new daily record of more than 91,000.

The United States broke the country’s daily record for new coronavirus infections with a reported 84,218 new cases due to outbreaks in virtually every part of the country, according to a Reuters tally.

Students in Boston’s public schools will shift to remote learning due to the rising Covid-19 infection rate in the city that was ravaged by the pandemic in the spring.

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.

Nine U.S. states reported record increases in Covid-19 cases over the last seven days, mostly in the upper Midwest and West where chilly weather is forcing more activities indoors.