Table 1 Comparison based on the percent amino acid identity of the HA1 domain and their antigenic sites between Chilean (ChH1A and ChH1B) and North American (α, β, γ, and δ) H1 swine IAV clusters.
From: Antigenic characterization of novel H1 influenza A viruses in swine
ChH1A cluster | ChH1B cluster | |||
|---|---|---|---|---|
HA1 | Antigenic sites | HA1 | Antigenic sites | |
ChH1A cluster | 92.6–100 | 86.0–100 | — | — |
ChH1B cluster | 86.5–87.7 | 78.0–86.0 | 98.2–100 | 96.0–100 |
α clade 1A.1 | 68.7–76.1 | 42.0–54.0 | 72.4–81.0 | 40.0–52.0 |
β clade 1A.2 | 65.4–72.5 | 42.0–56.0 | 69.0–75.2 | 40.0–52.0 |
γ clade 1A.3.2 (γ-2) | 67.8–73.1 | 44.0–56.0 | 71.8–75.2 | 40.0–54.0 |
γ clade 1A.3.3.3 (γ) | 66.7–72.2 | 40.0–52.0 | 71.5–75.5 | 40.0–52.0 |
δ clade 1B.2.1 (δ-2) | 82.5–89.6 | 72.0–90.0 | 85.9–90.8 | 72.0–84.0 |
δ clade 1B.2.2 (δ-1) | 83.7–89.3 | 68.0–86.0 | 87.7–90.8 | 70.0–84.0 |
δ clade 1B.2.2.1 (δ-1a) | 82.8–87.4 | 70.0–84.0 | 85.5–90.2 | 68.0–78.0 |
δ clade 1B.2.2.2 (δ-1b) | 82.2–86.2 | 66.0–80.0 | 85.3–89.6 | 68.0–78.0 |
