Jason Gallagher, an infectious disease pharmacist in Philadelphia had gotten the Johnson & Johnson Covid-19 vaccine through a clinical trial in November, but this summer he didn't like the direction Covid-19 cases were taking due to variants.
원문출처 : https://www.cnn.com/2021/07/26/health/covid-19-vaccine-should-you-get-additional-dose/index.html
원문출처 : https://www.cnn.com/2021/07/26/health/covid-19-vaccine-should-you-get-additional-dose/index.html