Delta Air Lines, Inc., typically referred as Delta, is a major American airline, with its headquarters in Atlanta, Georgia. The airline, along with its subsidiaries and regional affiliates, operates over 5,400 flights daily and serves an extensive domestic and international network that includes 325 destinations in 52 countries on six continents, as of 31 March 2019. Read More
Pfizer and BioNTech said on Thursday that a booster shot of their COVID-19 vaccine has shown 95.6 per cent efficacy when compared to those who did not receive the booster dose. ...
Sputnik Light, Russia's single-dose COVID-19 vaccine, has been found to demonstrate 70 per cent efficacy against infection with the Delta variant during the first three months after vaccination. ...
