July 4, 2023 Mayor Francis Zamora led the launching of the bivalent COVID-19 vaccines, initially, for the A1 category or frontline healthcare workers working in San Juan hospitals. The Metro Manila Council President and San Juan City Mayor was joined by Department of Health (DOH) Regional Director Dr. Aleli Anne Grace P. Sudiacal for the bivalent inoculation launch. These bivalent COVID-19 vaccines were administered to healthcare workers who have received their second booster shot at least four (4) months prior. It is considered as the third booster dose for the eligible population. Related video: https://www.facebook.com/MayorFrancisZamora/videos/1873432443041536