After months of frustration over testing shortages and delays, a new saliva test could give Americans a fast and inexpensive option to learn if they have Covid-19.
원문출처 : https://www.cnn.com/2020/08/16/health/us-coronavirus-sunday/index.html
원문출처 : https://www.cnn.com/2020/08/16/health/us-coronavirus-sunday/index.html