Table 5.
Isolatea | No. of CFU per larva (avg ± SD)b |
---|---|
WT 297 | 227.3 ± 94.4 |
Bb508 | 0.1 ± 1.3 |
Bb807 | 0.3 ± 0.5 |
WT B31 | 1,226 ± 855 |
Bb1197 | 9.0 ± 9.0 |
Strain used to immerse naïve larvae. Viability of spirochetes within immersion-fed larvae was assessed after ticks had fed to repletion on naïve mice.
The number of CFU is based on pools of 15 larvae per isolate. Values represent results from three serial dilutions (undiluted, 10−1, and 10−2), plated in triplicate, for each larval pool.