| | South Africa registered more than 24,000 cases of COVID-19 on Friday, its highest tally of new infections since the pandemic began, as a third wave of the virus spread through a population in which just 5% have been vaccinated. | | | The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the virus. | | | The U.S. Food and Drug Administration said on Friday it had authorized the use of an additional batch of Johnson & Johnson's (JNJ.N) one-dose COVID-19 vaccine manufactured at the problem-plagued Baltimore factory of Emergent BioSolutions Inc (EBS.N). | | | At least 26,000 out-of-date AstraZeneca (AZN.L) COVID-19 vaccine shots have been administered in Brazil, newspaper Folha de S.Paulo reported on Friday, citing Health Ministry data. | | | Slovakia has sold most Russian Sputnik V coronavirus vaccines back to the country of origin, the Slovak Health Ministry said on Friday, as public interest is low after months of government hesitation over using the product that lacks European regulatory approval. | | | The United States had administered 328,809,470 doses of COVID-19 vaccines in the country as of Friday morning and distributed 382,636,520 doses, the U.S. Centers for Disease Control and Prevention said. | | | The United States will send 1.5 million doses of Moderna Inc's (MRNA.O) COVID-19 vaccine to El Salvador on Sunday, White House spokeswoman Jen Psaki told reporters at a news briefing on Friday. | | | Terry Gou, the billionaire founder of Taiwan's Foxconn (2317.TW), and TSMC (2330.TW) reached initial agreements to buy 5 million doses each of BioNTech SE's (22UAy.DE) COVID-19 vaccine on Friday, three sources with knowledge of the situation told Reuters. | | | Spain reported 12,563 new coronavirus infections and 28 deaths on Friday, up from 12,345 cases and eight deaths on Thursday, as cases continue to spike mainly due to the more contagious Delta variant. | | | The first case of the Delta coronavirus variant was confirmed in Bosnia on Friday, contracted by a visiting Spanish pilgrim, the N1 regional television reported. | | | | |