Covid-19 vaccines are protecting more than half the US population from current strains, experts say. But if too few people get vaccinated, the virus will be allowed to continue to spread -- and the result could be an even more dangerous variant, Dr. Anthony Fauci said.
원문출처 : https://www.cnn.com/2021/08/09/health/us-coronavirus-monday/index.html
원문출처 : https://www.cnn.com/2021/08/09/health/us-coronavirus-monday/index.html