Table 3.
Semisolid plating of larvae fed to repletion on syringe-inoculated mice
| Isolate and groupa | No. of CFU per larva (avg ± SD)b |
|---|---|
| WT 297 | |
| Larval pool 1 | 1,395.7 ± 513.4 |
| Larval pool 2 | 1,629.1 ± 377.3 |
| Larval pool 3 | 4,650 ± 2,192 |
| Bb508 | |
| Larval pool 1 | ND |
| Larval pool 2 | 6 ± 6.8 |
| Larval pool 3 | ND |
| Bb807 | |
| Larval pool 1 | 4.4 ± 3.9 |
| Larval pool 2 | 0.2 ± 0.4 |
| Larval pool 3 | ND |
| Bb1197 | |
| Larval pool 1 | ND |
| Larval pool 2 | ND |
| Larval pool 3 | ND |
a
Strain used to syringe inoculate the mice used for larval infestation.
b
The number of CFU per larva is based on larvae (15 per pool) fed to repletion on individual infected mice, with 3 mice per isolate (animals M1 to M3). Values represent the average number of CFU (± standard deviation) from three serial dilutions (undiluted, 10−1, and 10−2), plated in duplicate, for each larval pool. ND, no CFU detected.