Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
| Lineage | Trunk substitutions from MRCA to F159X fixation | Trunk substitutions post- F159X fixation |
|---|---|---|
| F159Y (lineage 1, Clade 3C.2a) | L3I, N225D, Q311H, N144S, K160T | R142K, R261L |
| F159S (lineage 2, Clade 3C.3a) | R142G, T128A, A138S, N225D |
