Seniors, particularly those aged 75 and over, are recommended to get a COVID-19 booster every 6 months. For adults aged 65-74, the recommendation is generally a booster every 12 months, but they may be eligible for a 6-month booster depending on their risk assessment. This semiannual booster schedule is advised because older adults have a higher risk of severe COVID-19 illness and death, and recent boosters significantly reduce their risk of mortality and serious illness. Additional details:
- Adults 75+ and aged care residents should get boosters every 6 months.
- Adults 65-74 and adults with severe immunocompromise are recommended boosters every 12 months, with the option to get them every 6 months based on risk.
- COVID-19 vaccines can be safely administered with other vaccines such as the flu shot.
- The booster vaccines target current variants and help restore waning immunity.
- CDC and international health bodies advise continuing vaccinations to maintain protection in seniors, especially given their vulnerability to severe outcomes from COVID-19.
This guidance reflects the situation as of 2025 and may adjust with emerging data and variant changes.
