SARS Coronavirus 2 CH.1.1

**Semantic type:** Virus

**Definition:** A sublineage variant of the BA.2.75 lineage of SARS coronavirus 2 where the following variations in the spike glycoprotein sequence have been identified: deletions of the amino acids at positions 25/27 and amino acid substitutions T19I, L24S, G142D, K147E, W152R, F157L, I210V, V213G, G257S, G339H, R346T, S371F, S373P, S375F, T376A, D405N, R408S, K417N, N440K, K444T, G446S, L452R, N460K, S477N, T478K, E484A, F486S, Q498R, N501Y, Y505H, D614G, H655Y, N679K, P681H, N764K, D796Y, Q954H and N969K.

**Synonyms:** - B.1.1.529.2.75.3.4.1.1.1.1 - BA.2.75.3.4.1.1.1.1 - BM.4.1.1.1.1 - CH.1.1 - Omicron - SARS Coronavirus 2 Variant Lineage CH.1.1 - SARS-CoV-2 CH.1.1 - SARS2 CH.1.1