| | The U.S. Food and Drug Administration has authorized a third dose of COVID-19 vaccines by Pfizer Inc (PFE.N)-BioNTech and Moderna Inc (MRNA.O) for people with compromised immune systems who are likely to have weaker protection from the two-dose regimens. | | | Here is a summary of some recent studies on COVID-19. They include research that warrants further study to corroborate the findings and that have yet to be certified by peer review. | | | The U.S. drug regulator has declined to approve Sesen Bio Inc's (SESN.O) lead therapy candidate for a type of bladder cancer, the company said on Friday, sending its shares down more than 80%. | | | The U.S. agency that regulates workplace safety issued guidance on Friday urging employers to require many fully vaccinated workers to wear masks to protect unvaccinated colleagues and customers, amid a surge in COVID-19 cases. | | | An advisory panel to the U.S. Centers for Disease Control and Prevention on Friday voted in favor of allowing people with compromised immune systems to receive extra doses of COVID-19 vaccines from Pfizer Inc (PFE.N) and Moderna (MRNA.O). | | | A U.S. appeals court on Friday revived a rule requiring private insurers that administer federally funded Medicare plans to return potentially billions of dollars in overpayments they receive based on incorrect diagnoses. | | | Reluctant French people lined up to get vaccinated as authorities were set to get tougher on the mandatory health pass for entering restaurants, trains and public places. | | | Cuba, grappling with a dire COVID-19 outbreak fueled by the Delta variant, said "only 21,000," or 0.8% of the 2.5 million people inoculated with its homegrown vaccines, had fallen ill with the disease so far. | | | Alberta backtracked on Friday on plans to lift its remaining COVID-19 restrictions, as hospitalizations and infections rose in the Western Canadian province just weeks before students return to school. | | | Canada on Friday said it will soon require all federal public servants and many other workers to be vaccinated against COVID-19, as it looks to boost its already world-leading inoculation rate amid a Delta variant-driven surge in new infections. | | | | |