CNN3: “:”u003cstrong>Sean Doyle knows the risks. By volunteering, he has become a critical part of the fastest moving vaccine trials in the history of the world.u003c/strong>”, “BANNER=|pagerendered| ((lubuntu at wor3))

|| screaming-banner-text banner-text-size–char-47″ data-analytics=”_list-hierarchical-xs_article_”> He is one of the first in the US injected with a possible Covid-19 vaccine ||” , title: “CNN – Breaking News, Latest News and Videos” , siblings: {“articleList”:[{“uri”:”/2020/04/24/health/coronavirus-vaccine-speed-sanjay-gupta/index.html”,”headline”:”u003cstrong>Sean Doyle knows the risks. By volunteering, he has become a critical part of the fastest moving vaccine trials in the history of the world.u003c/strong>”,”thumbnail”:”//cdn.cnn.com/cnnnext/dam/assets/200424203023-gupta-dnt-vaccine-trial-small-11.jpg”,”duration”:””,”description”:”u003ca href=”https://www.cnn.com/interactive/2020/health/coronavirus-us-maps-and-cases/” target=”_blank”>Tracking US casesu003c/a> | u003ca href=”https://www.cnn.com/audio/podcasts/corona-virus” target=”_blank”>Podcastu003c/a> | u003ca href=”https://www.cnn.com/2020/04/20/world/coronavirus-newsletter-04-20-20-intl/index.html” target=”_blank”>Catch upu003c/a> | u003ca href=”http://cnn.com/CoronavirusAnswers” target=”_blank”>Q&Au003c/a> | u003ca href=”https://www.cnn.com/2020/04/24/world/gallery/coronavirus-after-lockdown/index.html” target=”_blank”>Life after lockdownu003c/a>”,”layout”:””