|| screaming-banner-text banner-text-size–char-44″ data-analytics=”_list-hierarchical-xs_article_”> Birx says US needs a testing ‘breakthrough’ ||” , title: “CNN – Breaking News, Latest News and Videos” , siblings: {“articleList”:[{“uri”:”/2020/04/26/politics/coronavirus-testing-deborah-birx/index.html”,”headline”:”u003cstrong>The White House coronavirus response coordinator says a certain type of antigen testing technology is needed to screen large numbers of people quicklyu003c/strong>”,”thumbnail”:”//cdn.cnn.com/cnnnext/dam/assets/200421194657-01-birx-coronavirus-0421-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/2020/04/26/world/coronavirus-newsletter-04-26-20-intl/index.html” target=”_blank”> Catch upu003c/a> | u003ca href=”https://www.cnn.com/interactive/2020/health/covid19-pandemic-video-timeline/index.html” target=”_blank”>Timeline of eventsu003c/a> “,”layout”:””