如何才能避免感染新型冠狀病毒 (COVID-19)？

Title from PDF caption (viewed on March 5, 2020)."OHA 2681 TRADITIONAL CHINESE (02/2020)."This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Mode of access: Internet from the Oregon Government Publications Collection.Text in Traditional Chinese