Papwijitsil, R., Suangtho, P., Jaiyong, R., Thananun, S., Wareewanit, K., Angthong, T., & Doung-ngern, P. (2020). An Investigation of Coronavirus Disease (COVID-19) in a Chinese Tourist, January-February 2020: Surgical Mask Wearing in Pre-Physical Distancing Strategy. Outbreak, Surveillance, Investigation & Response (OSIR) Journal, 13(2), 55–63. https://doi.org/10.59096/osir.v13i2.262820