Second covid-19 vaccination booster can now be offered to all persons aged 50 years and older to further increase their protection. As of 2022-07-21 MOH

Data has shown that the risk of severe COVID-19 can increase in persons aged 50 years and older. As such, the second booster can now be offered to all persons aged 50 years and older to further increase their protection.

https://www.moh.gov.sg/news-highlights/details/groups-eligible-for-second-booster-and-dosing-interval-for-covid-19-primary-vaccination-series#:~:text=All%20persons%20aged%2080%20years%20and%20older%20are%20strongly%20recommended,months%20after%20the%20first%20booster.