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Experimental infection of humans with LPAI strains.
| Antigenic subtype | Strain | Infectivity (%) | Clinical reactions |
|---|---|---|---|
| H1N1 | Dk/Alberta/35/76 | 20 (1/5) | None |
| H3N2 | Dk/NY/6874/78 | 33 (1/3) | None |
| H3N8 | Dk/Ukraine/1/63 | 50 (3/6) | None |
| H4N8 | Dk/Alberta/288/78 | 23 (3/14) | Mild clinical symptoms |
| H6N1 | Dk/Penn/486/69 | 18 (2/12) | Mild clinical symptoms |
| H6N2 | Dk/Alberta/33/78 | 0 (0/5) | None |
| H9N2 | Turkey/WI/1/66 | 18 (3/16) | None |
| H10N7 | Turkey/MN/3/79 | 36 (6/16) | Mild clinical symptoms |
