Healthcare workers prepare Pfizer coronavirus disease (COVID-19) vaccinations in Los Angeles, California, January 7, 2021.
Lucy Nicholson | Reuters
The White House coronavirus task force said there could be a new variant of the virus that evolved in the U.S. and is driving spread, according to a document obtained by NBC News.
The new variant, in addition to the U.K. variant, is already spreading in communities and may be 50% more transmissible, according to the report that was issued to states on Jan. 3.
Representatives for the Centers for Disease Control and Prevention and the Department of Health and Human Services did not immediately return CNBC’s requests for comment.
This is a developing story. Please check back for updates.