PAPWIJITSIL, Ratchadaporn et al. An Investigation of Coronavirus Disease (COVID-19) in a Chinese Tourist, January-February 2020: Surgical Mask Wearing in Pre-Physical Distancing Strategy. OSIR Journal, [S.l.], v. 13, n. 2, june 2020. ISSN 2651-1061. Available at: <http://osirjournal.net/index.php/osir/article/view/179>. Date accessed: 29 mar. 2024.