Seroprevalence of SARS-CoV-2 in Hong Kong and in residents evacuated from Hubei province, China: a multicohort study oleh Kelvin Kai-Wang To, MD, Vincent Chi-Chung Cheng, MD, Jian-Piao Cai, BSc, Kwok-Hung Chan, PhD, Lin-Lei Chen, MPhil, Lok-Hin Wong, MPhil, Charlotte Yee-Ki Choi, BSc, Carol Ho-Yan Fong, PhD, Anthony Chin-Ki Ng, BSc, Lu Lu, BSc, Cui-Ting Luo, BSc, Jianwen Situ, MPhil, Tom Wai-Hin Chung, MRCP, Shuk-Ching Wong, MNurs, Grace See-Wai Kwan, MMedSc, Siddharth Sridhar, FRCPath, Jasper Fuk-Woo Chan, MD, Cecilia Yuen-Man Fan, FRACGP, Vivien W M Chuang, FRCPath, Kin-Hang Kok, PhD, Ivan Fan-Ngai Hung, ProfMD, Kwok-Yung Yuen, ProfMD