On Jan. 26, 2023, the U.S. Food and Drug Administration revised the Emergency Use Authorization for Evusheld (tixagevimab co-packaged with cilgavimab) to limit its use to when the combined frequency of non-susceptible SARS-CoV-2 variants nationally is less than or equal to 90%. Based on this revision, Evusheld is not currently authorized for use in the U.S. until further notice by the Agency.