New study shows that AstraZeneca is 79% effective

There’s been a lot of mixed news about the AstraZeneca vaccine over the past months. In some countries in Europe, the vaccine was put on pause, while other countries never stopped using it. Now, there is new data out: According to a clinical trial conducted in the US, AstraZeneca’s vaccine was found to be 79% effective. Host Marco Werman talks with Dr. Miguel Nicolelis, based in São Paulo, Brazil.