At least seven people in five U.S. states were infected with the novel coronavirus weeks before those states reported their first cases, a new government study showed.

Walmart Inc. is preparing to offer Covid-19 vaccinations in seven more states, as well as in Chicago and Puerto Rico, expanding beyond the two states where the company’s pharmacists are offering inoculations.

The United States recorded 10,000 coronavirus deaths and more than 1.1 million new cases for the week ended Nov. 29, although state and health officials said the Thanksgiving holiday likely caused numbers to be under-reported.

The number of Covid-19 deaths in the United States crossed 250,000, according to a Reuters tally, as a third coronavirus wave brings a fresh surge in infections and puts immense strain on the healthcare system.

The number of coronavirus cases in the United States crossed the 11 million mark, according to a Reuters tally, as the third wave of Covid-19 infections surged across the country.

Chicago’s mayor issued a month-long stay-at-home advisory, and Detroit’s public schools called a halt to in-person instruction to curb the spread of the coronavirus as more than a dozen U.S. states reported a doubling of new Covid-19 cases in the last two weeks.

The United States became the first nation since the pandemic began to surpass 10 million coronavirus infections, according to a Reuters tally, as the third wave of the Covid-19 virus surges across the country.

U.S. coronavirus infections surged by at least 129,606, according to a Reuters tally, the third consecutive daily rise of more than 100,000 cases as a third wave of Covid-19 sweeps the United States.

Coronavirus cases in the United States surged by at least 120,276, according to a Reuters tally, the second consecutive daily record rise as the outbreak spreads in every region.

The number of coronavirus patients in U.S. hospitals breached 50,000, the highest level in nearly three months, as a surge in infections threatens to push the nation’s health care system to the edge of capacity.