| | The following is a summary of some recent studies on COVID-19. They include research that warrants further study to corroborate the findings and that has yet to be certified by peer review. | | | The U.S. drugs regulator said on Wednesday it had authorized AstraZeneca's antibody cocktail to prevent COVID-19 infections in individuals who have weak immune systems or a history of severe side effects from coronavirus vaccines. | | | The United States has administered 475,728,399 doses of COVID-19 vaccines in the country as of Wednesday morning and distributed 586,471,075 doses, the U.S. Centers for Disease Control and Prevention said. | | | British Prime Minister Boris Johnson imposed tougher COVID-19 restrictions in England on Wednesday, ordering people to work from home, wear masks in public places and use vaccine passes to slow the spread of the Omicron coronavirus variant. | | | Theranos founder Elizabeth Holmes finished testifying in her own defense against fraud charges on Wednesday morning, telling jurors that investors "weren't interested in today" but focused on the blood-testing startup's impact in the long-run. | | | France's Ile-de-France region on Wednesday said that all hospitals are activating an emergency plan due to the strained COVID-19 situation. | | | BioNTech and Pfizer said on Wednesday a three-shot course of their COVID-19 vaccine was able to neutralise the new Omicron variant in a laboratory test, an early signal that booster shots could be key to protection against infection from the newly identified variant. | | | Denmark will again impose restrictions aimed at curbing the rapid spread of COVID-19 including the new Omicron variant, the country's prime minister said on Wednesday. | | | British researchers on Wednesday started recruitment for a clinical trial to test antiviral COVID-19 treatments for use in people early on in the disease who are at higher risks of complications, starting with Merck's molnupiravir. | | | South Africa reported nearly 20,000 new COVID-19 cases on Wednesday, a record since the Omicron variant was detected, and 36 new COVID-related deaths. | | | | |