Here is what you need to know about COVID-19 booster doses

Do you need extra shots of the vaccine for COVID-19 if you are fully vaccinated?

Most people who are fully vaccinated against the coronavirus are relatively protected from severe illness and death from COVID-19. However, even highly effective vaccine’s immunity often fades over time. Early studies on vaccines that use mRNA to protect against coronavirus, such as those conducted by Pfizer and Moderna, have shown that they work regardless of the virus variant (such as alpha, beta, or delta). A new vaccine, called a booster, a few months after the first dose can help make the vaccine more effective, research suggests.