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. - Oka, Prawira; Jia, Huan; Kongsuphol, Patthara; Ng, Say Yong; Saravanan, Vivekanandan; Ng, Chirk Jenn; Moosa, Aminath Shiwaza; Xiong, Mengfei; Gun, Shih Ying; Tsang, Li Ping Marianne; Lim, Jingyi; Vijaykumar, Kayshini; et al. (BMC Infectious Diseases, 2025)