Moderna is finalizing data on several booster shots for Covid 19 and urges elderly populations such as The Villages to get a booster shot to avoid respiratory complications. The efficacy of the first two shots diminishes after 6 to 9 months. We got our second shot in March 2021 so about November we will sign up for the booster. Moderna is a vaccine company that developed a vaccine against Covid 19 last year under Operation Warp Speed.