TABLE 1.
H2 influenza viruses used in this study
| Virus | Subtype | Abbreviation |
|---|---|---|
| A/Japan/305/1957 | H2N2 | Jap/57 |
| A/Krasnodar/101/1959 | H2N2 | Kras/59 |
| A/Ann Arbor/6/1960 | H2N2 | AA/6/60 |
| A/Berlin/3/1964 | H2N2 | Berlin/64 |
| A/Berkeley/1/1968 | H2N2 | Berk/68 |
| A/pintail/Praimoric/695/1976 | H2N3 | pin/Prai/76 |
| A/mallard/New York/6750/1978 | H2N2 | mal/NY/78 |
| A/mallard/Potsdam/178-3/1983 | H2N2 | mal/Pots/83 |
| A/chicken/New York/29878/1991 | H2N2 | ck/NY/91 |
| A/duck/Hokkaido/107/2001 | H2N2 | dk/Hok/01 |
| A/mallard/Alberta/149/2002 | H2N4 | mal/Alb/02 |
| A/tern/Australia/1/2004 | H2N5 | tern/Aus/04 |
| A/duck/Hokkaido/W259/2006 | H2N5 | dk/Hok/05 |
| A/ruddy shelduck/Mongolia/28/2006 | H2N2 | dk/Mng/06 |
| A/swine/MO/4296424/2006 | H2N3 | sw/MO/06 |