‘Difficult’ to Tell if Omicron Coronavirus Variant More Transmissible Than Delta, Fauci Says

"Obviously, when you look at the molecular configuration of those particular variants, it suggests strongly that there is increased transmission compared with the original pandemic virus, but it is difficult to infer what the relationship between this transmissibility and Delta. Although you can suggest it might be more, we do not know until we see the dynamics of how this evolves," Fauci said.