Seroprevalence of COVID-19 neutralizing antibodies among multi-ethnic staff of an Asian primary healthcare institution: insights from point-of-care testing and implications for booster vaccination decisions

The study revealed a high seroprevalence of COVID-19 nAb among the fully vaccinated participating staff. The necessity for timely boosters is underscored by 79.7% contracting COVID-19 post-vaccination. Most subjects were willing to undergo point-of-care testing, with results potentially influencing their decisions for booster vaccination.