| | | | | Experimental host and age | Passage history and strain | Inoculation Route-Dose | Evidence of infection | AST (days) | Titer log10/ml | |
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| | Mice (nb) | No. 131, SMB 2 | ic 0.02 | Encephalitis, death | 5-6 | 5.0 | | | Mice (nb) | | ip | | | | | | Mice (nb) | | sc | | | | | | Mice (wn) | SMB 4 | ic 0.03 | Encephalitis, death | 12 | 1.0 | | | Mice (wn) | | ip | | | | | | hamster (ad) | SMB 2 | sc 0.03 | Viremia 4th, 6th days, survived; CF antibody 27th, 46th days | | | | | rabbit (ad) | | sc 0.03 | CF antibody 27th day, survived | | | | | guinea pig (ad) | | ip 0.01 | CF antibody 26th day, survived | | | | | Lepus americanus (yg,ad) | Low | ic,iv | Viremia in 3/9 animals (8) | 5 | 3.0-5.0 | | | | | | | | | |
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