President Biden announced that the U.S. is purchasing 500 million doses of Pfizer's COVID-19 vaccine to send to countries in need. Thursday (6/10), ahead of the G7 in England, the president said it's "the largest single purchase and donation of COVID-19 vaccines by any single country ever." "The United States will purchase a half a billion doses of Pfizer COVID-19 vaccine to donate to nearly 100 nations that are in dire need in the fight against this pandemic. That's a historic step. The largest single purchase and donation of COVID-19 vaccines by any single country ever. Importantly, this is the mRNA vaccine, which is proven to be extremely effective against COVID-19 and every known variant of that virus thus far. These half a billion vaccines will start to be shipped in August, as quickly as they roll off the manufacturing line." Get more Central Virginia news: https://www.wtvr.com Like us: / cbs6news Follow us: / cbs6 Instagram: / cbs6 Depend on CBS 6 News and WTVR.com for complete coverage of important stories.