Even as our nation struggles to achieve herd immunity from COVID-19, talks are beginning about the need for a booster vaccine shot. The possible need for an additional dose to strengthen immunity was always a consideration, but now that millions of individuals have been inoculated over the span of many months, the data tells a more complete story. In today's post, we'll go over 5 things you need to know about this discussion so that you can know if or when to get your booster shot.