The CDC has expanded eligibility for some people to get a second vaccine booster. Older adults - especially those with underlying medical conditions - and people with compromised immune systems are at higher risk of severe health impacts if infected by COVID-19, and are therefore among those most likely to benefit from the additional protection of a second booster shot. The emergence of the Omicron variant and subvariant BA.2 underscores the importance of vaccination, boosters, and preventive efforts to protect against COVID-19. Talk with your healthcare provider about whether an additional booster is recommended for you at this time.