The new coronavirus spreads mainly via airborne transmission and wearing a mask is the most effective way to stop person-to person spread, according to a new study.
원문출처 : https://www.cnn.com/2020/06/12/health/coronavirus-mask-wellness-trnd/index.html
원문출처 : https://www.cnn.com/2020/06/12/health/coronavirus-mask-wellness-trnd/index.html