Biden Raises Lab Leak Theory; G-7 Falls Short: Virus Update Bloomberg 25 mins ago (Bloomberg) -- The Group of Seven fell short on a pledge Sunday to donate 1 billion additional vaccine doses to developing nations. President Joe Biden said the U.S. may be able to provide 1 billion more doses to the world by 2023, and again raised the possibility that the virus may have escaped from a Chinese laboratory. The U.S. death toll is approaching 600,000. The country added 19,675 new cases Saturday, the most since June 2, according to data compiled by Johns Hopkins University and Bloomberg. The U.K. was removed from Abu Dhabi’s “Green List,” meaning travelers from the country now need to quarantine on arrival in the Middle Eastern city. The move comes as cases rise in the U.K. Prime Minister Boris Johnson said he’s now less hopeful about lifting England’s restrictions as planned on June 21.