Answering questions, concerns about the coronavirus vaccines | PolitiFact The most common reason given for not wanting the shot: The vaccines are too new and not enough is known about them. Â Â Scott Oburn, left, gets his COVID-19 vaccination from Laurie Haberzetle, as vehicles enter the garages for people to get vaccinated Tuesday at the Indianapolis Motor Speedway. [ KELLY WILKINSON/INDYSTAR | The Indianapolis Star ] Updated 5 hours ago If youâre not one of the 120 million Americans who have already received at least one dose of a coronavirus vaccine, you may be wondering: Is the shot worth it? And is it safe? Youâre not alone. A March poll found that 13 percent of Americans say they will âdefinitely notâ get vaccinated, with Republicans and white evangelical Christians leading the pack. The most common reason given: The vaccines are too new and not enough is known about them.