SARS Coronavirus 2 FD.1.1

**Semantic type:** Virus

**Definition:** A sublineage variant of the XBB.1.5 recombinant lineage of SARS coronavirus 2. This lineage has the same amino acid variations as XBB.1.5 but harbors the amino acid substitutions A1473V and T4174I in the ORF1a protein and F456L in the spike glycoprotein.

**Synonyms:** - FD.1.1 - Omicron - SARS Coronavirus 2 Variant Lineage FD.1.1 - SARS-CoV-2 FD.1.1 - SARS2 FD.1.1 - XBB.1.5.15.1.1