CNN New Day With John Berman and Brianna Keilar December 20, 2021 12:04:00
Fauci and others talking about the need for better testing. dr. fauci saying we need to flood the country with tests. right now the testing is not great in all parts of the country. >> the reason it's not clear about omicron, is that because they weren't testing against omicron when they started to do these trials? >> reporter: right. of course. when they did the clinical trials back in 2020, omicron didn't exist. delta didn't exist. they were testing it against the original form of coronavirus. sometimes called the wild type. people didn't even know omicron was around. so that is part of the ...