The best and worst-case scenario that the omicron variant could cause, according to Dr. Anthony Fauci | Video | CNN

The omicron variant of the new coronavirus begins to reach all corners of the world, after being detected in South Africa in November.

But what would be the most serious or the most encouraging thing that could happen with this variant?

Dr. Anthony Fauci, director of the US National Institute of Allergies and Infectious Diseases, responds in Conclusions.