News Do you need a booster shot for COVID-19? It’s not recommended, yet. Here’s what to know. July 13, 2021 Karen Weintraub, USA TODAY Comments Off on Do you need a booster shot for COVID-19? It’s not recommended, yet. Here’s what to know. Vaccine companies are studying the effectiveness of a third COVID-19 shot, known as a booster. Here's what you need to know.