The study by Oxford University investigated the ability of monoclonal antibodies in Sera from recovered people and from vaccinated people to neutralize the Delta and Kappa variants, the statement said.
Amazon saw over $5.6 billion in total online sales in the United States on the first day of its Prime promotional event, according to Adobe Digital Economy Index.
OPEC+ is discussing a gradual increase to oil output from August, but no decision has been taken on the exact volumes, an OPEC+ source said on Tuesday.