medRxiv preprint doi: https://doi.org/10.1101/2020.07.13.20151944; this version posted July 17, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted medRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license . 1 Seroprevalence of Hospital Staff in Province with Zero COVID-19 Cases 2 Tanawin Nopsopon, M.D. 3 Lecturer, Department of Preventive and Social Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, 4 Thailand 5
[email protected] 6 7 Krit Pongpirul, M.D., M.P.H., Ph.D. (Corresponding Author) 8 Assistant Professor, Department of Preventive and Social Medicine, Faculty of Medicine, Chulalongkorn 9 University, Bangkok, Thailand; Department of International Health, Johns Hopkins Bloomberg School of Public 10 Health, Baltimore, MD, USA; Bumrungrad International Hospital, Bangkok, Thailand 11
[email protected] 12 13 Korn Chotirosniramit 14 Medical Student, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand 15
[email protected] 16 17 Wutichai Jakaew, M.D. 18 Chairman of Infectious Control Board, Ranong Hospital, Ranong, Thailand 19
[email protected] 20 21 Chuenkhwan Kaewwijit, B.Sc. 22 Head of Medical Laboratory Department, Ranong Hospital, Ranong, Thailand. 23
[email protected] 24 25 Sawan Kanchana, M.D., MFRCPT. 26 Hospital Director, Ranong Hospital, Ranong, Thailand 27
[email protected] 28 29 Narin Hiransuthikul, M.D., Ph.D. 30 Professor, Department of Preventive and Social Medicine, Faculty of Medicine, Chulalongkorn University, 31 Bangkok, Thailand 32
[email protected] 33 Words: 1,939 words (Text), 260 words (Abstract), 1 figure, 2 tables 34 1 NOTE: This preprint reports new research that has not been certified by peer review and should not be used to guide clinical practice.