Table 1. Characteristics and origin of West Nile virus strains included in this investigation*.
| Strain, year of isolation | Passage | Source | Location | Syndrome | Outcome | L | Neuro | Glyco | Ref | GenBank |
|---|---|---|---|---|---|---|---|---|---|---|
| SPU116/89, 1989 | Mouse 3 | Human | SA | Necrotic hepatitis | Died | 2 | High | NYS† | This study | EF429197 |
| SA93/01, 2001 | Mouse 1 | Human | SA | Fever, rash, myalgia, encephalitis | Survived | 2 | High | NYS† | This study | EF429198 |
| SA381/00, 2000 | Mouse 1 | Human | SA | Fever, rash, myalgia, arthralgia | Survived | 2 | Mild | NYS† | This study | EF429199 |
| H442, 1958 | Mouse 2 | Human | SA | Fever, rash, myalgia, arthralgia | Survived | 2 | High | NYS† | This study | EF429200 |
| B956, 1937 | Mouse 2 | Human | Uga | Febrile disease | Survived | 2 | Mild | Deletion of entire motif | (7) | AY532665 |
| B956D117B3,‡ 1937 | Unknown | Human | Uga | Febrile disease | Survived | 2 | Less than B956 | Deletion of entire motif | (15) | M12294 |
| Madagascar-AnMg798, 1978 | Unknown | Parrot§ | Mad | NA | Died | 2 | None | NYP | (16) | DQ176636 |
| NY 385–99, 1999 | Vero 2 | Human | USA | Unknown | Unknown | 1 | High | NYS† | (17) | DQ211652 |
| NY-385–99 Clone TYP-9376, 2005 | Hamster | Hamster | USA | NA | NA | 1 | None¶ | NYS† | (18) | AY848697 |
| NY-385–99 Clone 9317B, 2005 | Hamster | Hamster | USA | NA | NA | 1 | None¶ | NYS† | (18) | DO66423 |
| TM171–03, 2003 | Vero 1 | Common raven | Mex | Unknown | Died | 1 | None¶ | NYP | (19) | AY660002 |
| MRM61C, 1960 | NA | Mosquito# | Aus | NA | NA | 1 | None | NYF | (20) | D00246 |
*L, lineage; Neuro, neuroinvasiveness in mice; Glyco, glycosylation of envelope protein; Ref., reference no.; GenBank, GenBank accession no.; SA, South Africa; Uga, Uganda; Mad, Madagascar; NA, not applicable; USA, United States; Mex, Mexico; Aus, Australia. †Strains that are glycosylated in the envelope protein positions 154–156. ‡A descendant of B956. §Coracopsis vasa. ¶Attenuated laboratory strains. #Culex annulirostris.