"From epidemiological data, countries that have been most effective in reducing the spread of #COVID19 have implemented universal masking, including Taiwan, Hong Kong, Singapore, and South Korea."— Bojan Pancevski (@bopanc) June 1, 2020
"From epidemiological data, countries that have been most effective in reducing the spread of #COVID19 have implemented universal masking, including Taiwan, Hong Kong, Singapore, and South Korea."