California on Aug. 11 became the first U.S. state to require that its teachers and other school staff be vaccinated or regularly tested for Covid-19, a move Governor Gavin Newsom called “a responsible step” to ensure the safety of children.

Only eight intensive care unit beds were available on Aug. 9 in Arkansas, the state’s governor said, as the rapid spread of the Delta variant of the coronavirus pushed cases and hospitalizations in the United States to a six-month high.

The number of new Covid-19 cases climbed to a six-month high in the United States, with more than 100,000 infections reported on Aug. 5 as the Delta variant ravages Florida and other states with lower vaccination rates.

U.S. states are set to begin using the vaccine from Pfizer Inc. and BioNTech SE to inoculate young adolescents against Covid-19 after advisers to the U.S. Centers for Disease Control and Prevention (CDC) backed the plan in a unanimous vote on May 12.

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 more than 15,000 deaths from Covid-19 and over 1.2 million new cases for the week ended Dec. 27, though those numbers may be artificially low due to reporting gaps over the Christmas holiday.

The U.S. Supreme Court agreed to hear a bid by President Donald Trump’s administration to revive pilot programs adopted by the states of Arkansas and New Hampshire that allow work requirements to be imposed on people who receive healthcare under the Medicaid program for the poor.

The United States reported a record increase in coronavirus cases for a fourth consecutive day with at least 131,420 new infections, bringing the country’s total caseload to about 9.91 million, according to a Reuters tally.

Seven U.S. states reported record one-day increases in Covid-19 cases so far in September even as the average daily number of new infections is falling nationally.

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.