This is great news, but it’s too soon to be certain: Fmr. CDC director on Pfizer’s vaccine trial

Dr. Tom Frieden, former CDC director under President Obama, says he is encouraged by the data from Pfizer’s vaccine trials that showed it would be 90 percent effective. But he also warned it’s too soon to tell if it will work for everyone. He joins ‘Closing Bell’ to provide insight into Pfizer’s Covid-19 vaccine data and the impact it's had on the broader markets.
Mon, Nov 9 20203:58 PM EST