Table 2. Genotype analysis for complete sequences of H5N1 highly pathogenic avian influenza virus from mammal species, including substitutions in the PB2 gene at the consensus and subconsensus level, grouped by species, United States, 2022*.
| Animal | A3 | B1.1 | B1.2 | B2 | B3.1 | B3.2 | B4 | Minor 02 | Minor 15 | Total |
|---|---|---|---|---|---|---|---|---|---|---|
| Red fox | 1 | 7 | 6 E627K (1), D701N† (1) | 8 E627K† (2), D701N† (1) | 4 D701N (1) | 6 E627K (1) | 1 | 2 | 2 | 37 |
| Skunk | 4 | 4 | ||||||||
| Raccoon | 1 E627K† (1) | 1 E627K (1) | 2 | |||||||
| Opossum | 2 | 2 | ||||||||
| Bobcat | 1 | 1 | ||||||||
| Coyote | 1 D701N† (1) | 1 | ||||||||
| Fisher | 1 | 1 | ||||||||
| Total | 1 | 9 | 8 | 9 | 4 | 12 | 1 | 2 | 2 | 48 |
*Values are no. detections of PB2 substitutions. PB2, polymerase basic protein 2. †Substitutions were detected at the PB2 subconsensus level (mixed); those without a dagger were detected at the consensus level.