Prince Harry and Meghan, the Duke and Duchess of Sussex, onstage at Central Park on Saturday afternoon.“This year, the world is expected to produce enough doses to meet the target of vaccinating 70% of people in every single country,” Meghan, the Duchess of Sussex, said to cheers from the Central Park crowd. “But it is wrong that so much of the vaccine supply has only gone to just 10 wealthy nations so far, and not everyone else.”The U.S.