Vast majority of americans are worried that a vaccine is being rushed to the public. Nearly half now say they will not get a vaccine when one is ready. This is a big deal. Vaccines dont work unless the popration trusts them. Cnns senior medical correspondent Elizabeth Cohen joins us now. Okay. Tell us first about the testing guidance because this confused everyone when it happened. I was talking to dr. Fauci on the air. Clearly not in line with his thinking. How did this happen, and has it is been corrected since then . Reporter it has not been corrected, and i think that we should all keep an eye on cdc website to see if they do correct it. Heres sort of the of the narrative of what happened. The cdc all of a sudden a few weeks ago said, you know, what you dont necessarily need to get tested if youve been exposed to someone with covid as long us a dont have symptoms, so youve spent, you know, 15 minutes or more near someone with covid, so youve been exposed but you dont have symptoms,