Only 5.4 million Americans have been vaccinated so far despite 17.2 million doses being shipped out The US has only vaccinated 1.7 percent of the population in just over three weeks, with about two-thirds of vaccine doses currently unused across the country Officials, both federal and state, are struggling to explain why the train wreck rollout has been so slow Dr Anthony Fauci admitted the US should have done better with the historic vaccination rollout - as cases, deaths and hospitalizations continue to surge to record highs across the country States such as North Carolina, Louisiana, Georgia, Mississippi and Alabama have all said they will now add elderly residents to list of people currently allowed to be vaccinated