Teacher burnout: Why schools around the US are closing their doorsAs the COVID-19 pandemic wears on, teachers and school staff across the country are facing exhaustion.Just the FAQs, USA TODAYAs COVID-19 cases skyrocket among teachers, school officials in Indiana, Michigan, North Carolina and Nevada announced this week they would temporarily close or shift to remote learning amid worsening teacher shortages.In Indiana, at least four Marion County school districts have shifted to remote learning this week, including Indianapolis Public Schools, said Wednesday the decision “has been made based on the number of staff absences, including COVID-19 isolation and quarantines at the middle and high school levels.”North Carolina has resorted to allowing state employees to use their allotted volunteer days to fill in as paid substitute teachers, Gov. Roy Cooper announced Wednesday. In Nevada, all schools in Carson City School District were also closed part of this week because of a surge in staff members getting infected with COVID-19.Maryland’s largest school district has asked the National Guard to fill in for bus drivers after staffing surges led to the cancellation of 40 to 80 bus routes, ABC News reported.Meanwhile, students nationwide are staging walkouts this week to demand a voice in ongoing battles over in-person and remote learning. Samantha Farrow, a 16-year-old student activist at Stuyvesant High School and organizer of a walkout this week, said many New York City schools have been left “pretty desolate” with half-empty classrooms and countless missing teachers.Farrow said most of her teachers this week have been absent due to exposure or infection. Due to staffing shortages, most days have been “non-instructional days” spent reading on her own or scrolling through her phone.”It just doesn’t seem like a good use of our time,” she said.In a reversal from his pledge to keep students in schools, New York City Mayor Eric Adams said Thursday he is also considering a return to remote learning as student attendance also falters amid spikes in COVID-19 cases.Also in the news:►As some experts say the current COVID-19 wave may be peaking, new coronavirus cases ticked down slightly for the second time this week. The U.S. reported some 5.51 million cases in the week ending Thursday, down from a revised 5.53 million in the week ending Wednesday, a USA TODAY analysis of Johns Hopkins University data shows. ►President Joe Biden announced Thursday that the government will double to 1 billion the rapid, at-home COVID-19 tests to be distributed free to Americans.►U.K. Prime Minister Boris Johnson’s office apologized Friday to the royal family for holding a late-night staff party the day before Queen Elizabeth II sat alone and mourned her late Prince Philip in a socially distanced funeral service due to the country’s COVID-19 rules.►More than half a million people in Israel have received a fourth dose of the COVID-19 vaccine, the country’s health ministry said Friday.►Cruise lines will no longer be obliged to follow COVID-19 guidance on ships as the CDC’s Framework for Conditional Sailing Order, which was extended and modified in October, will expire Saturday.📈Today’s numbers: The U.S. has recorded more than 63.9 million confirmed COVID-19 cases and more than 846,000 deaths, according to Johns Hopkins University data. Global totals: More than 319 million cases and nearly 5.5 million deaths. More than 208 million Americans – 62.8% – are fully vaccinated, according to the Centers for Disease Control and Prevention.📘What we’re reading: When will this COVID surge end? Scientists search your sewage for clues.Keep refreshing this page for the latest news. Want more? Sign up for USA TODAY’s free Coronavirus Watch newsletter to receive updates directly to your inbox and join our Facebook group.Tennis star Novak Djokovic faces deportation again after the Australian government revoked his visa for a second time.Immigration Minister Alex Hawke said Friday he used his ministerial discretion to revoke the 34-year-old Serb’s visa on public interest grounds three days before the Australian Open is to begin. Djokovic’s lawyers are expected to appeal the cancelation in the Federal Circuit and Family Court as they successfully did after the first cancellation.Djokovic arrived in Melbourne last week to defend his Australian Open title. His exemption from a COVID-19 vaccination requirement to compete was approved by the Victoria state government and Tennis Australia, the tournament organizer. That apparently allowed him to receive a visa to travel.But the Australian Border Force rejected the exemption and canceled his visa upon arrival in Melbourne. Djokovic spent four nights in an immigration detention hotel before a judge on Monday overturned that decision.— The Associated PressA coronavirus testing company under investigation by the Oregon Department of Justice and which has drawn criticism from customers in several states announced Thursday a “one-week pause on all operations.”The pause was expected to take effect Friday through Jan. 21 at all Center for COVID Control testing sites. The Illinois-based company’s website says it has more than 300 locations in the U.S. across several states. Two of those, Massachusetts and Washington, took action this week to shut down several of the company’s testing centers in their communities.In an internal company memo addressed to “all location owners and managers” and obtained by USA TODAY, the Center for COVID Control cited “increased scrutiny by the media into the operations of our collection sites” over the past week. The company says it processes 80,000 test requests per day.”This, coupled with various customer complaints, resulted in various state health departments and even Department of Justice taking a keen interest in our company,” the notice said. — Grace Hauck, USA TODAYThe Supreme Court on Thursday halted enforcement of one of President Joe Biden’s signature efforts to combat COVID-19, ruling that his administration doesn’t have the authority to impose vaccine-or-testing requirements on employers that would have covered tens of millions of Americans.The unsigned opinion, which came days after the justices heard arguments in the emergency appeal, marked the second time the nation’s highest court unwound a pandemic policy of the Biden administration, again concluding that federal officials exceeded the power given to them by Congress. The court blocked Biden’s eviction moratorium in August, ruling that it also was an overreach.At issue in the workplace case was whether the Occupational Safety and Health Administration had the power to impose the requirements under a 1970 law. It was not immediately clear what, if any, options the Biden administration has to respond to the ruling. In a statement, the president said he was “disappointed,” and it was “now up to states and individual employers to determine whether to make their workplaces as safe as possible for employees.” Read more here about what could be next for Biden’s vaccine campaign.— John Fritze, USA TODAYContributing: Celina Tebor, USA TODAY; The Associated Press