The omicron variant has been found in 24 countries
More should be known about the transmissibility and severity of the new variant in "days, not necessarily weeks," a senior World Health Organization scientist says.
Updated December 1, 2021 at 2:13 PM ET
The has now been found in two dozen countries and the World Health Organization says that although there's still much to be learned about the new strain, there's no indication that existing COVID-19 vaccines won't continue to save lives.
