As world grows desperate, US sits on tens of millions of unused COVID vaccine On Location: May 27, 2021 Replay Video UP NEXT Despite offers of lottery winnings, amusement park tickets and even cold hard cash, unvaccinated Americans are leaving tens of millions of unused doses for COVID-19 sitting on the shelves. Federal officials told state governors that as of earlier this week up to 53 million doses were still waiting to be ordered by the states – a staggering amount that, depending upon the type of vaccine, would offer protection against the virus to some 25 million people.MORE: Half of US adults now fully vaccinated against COVID-19: CDC