I’m NERVOUS again- about young adults. Korea’s pop wide #COVID19 tests have revealed something scary: YOUNG PEOPLE are leading carriers. (Italy only tests the rather sick, biases to old people). If the socially active age20-29 truly carry 30% of all cases— that means trouble! 😨 pic.twitter.com/r9RxAeTVrF

— Eric Feigl-Ding (@DrEricDing) March 15, 2020