It’s too soon to know whether the Omicron variant of the novel coronavirus will bring the COVID-19 pandemic to an end, Dr. Anthony Fauci said on Monday.

“It’s an open question as to whether or not Omicron is going to be the live virus vaccination everyone is hoping for,” Fauci said via videoconference at the World Economic Forum’s Davos Agenda virtual event on Monday.

“Because you have such a great deal of variability with new variants emerging,” he said.