For fully vaccinated people, the risk of still getting Covid-19 -- described as "breakthrough infections" -- remains extremely low, a new study out of New York suggests.
원문출처 : https://www.cnn.com/2021/04/21/health/two-breakthrough-infections-covid-19/index.html
원문출처 : https://www.cnn.com/2021/04/21/health/two-breakthrough-infections-covid-19/index.html