FDA Approves Booster Shot # 2 For Americans Over 50Americans 50 and older can get a second COVID-19 booster if it’s been at least four months since their last vaccination, a chance at extra protection for the most vulnerable in case the coronavirus rebounds.
https://www.news4jax.com/business/2022/03/29/fda-oks-another-pfizer-moderna-covid-booster-for-50-and-up/