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. 2004 Oct;72(10):5919–5924. doi: 10.1128/IAI.72.10.5919-5924.2004

FIG. 6.

FIG. 6.

Colonization of wild-type and C3-deficient mice by Tohama I-derived wild-type and ΔbrkA mutants of B. pertussis. Groups of three 4-to 6-week-old C57B1/6 and C3−/− mice were inoculated with 5 × 105 CFU of Tohama I, TohΔbrkA, BP338, or BP338ΔbrkA delivered in a 50-μl volume of PBS into the nares. The number of bacteria recovered from the lungs at 3 days postinoculation is expressed as the log10 mean ± the standard error. Statistical differences between groups are indicated (*, P < 0.05). Dashed line indicates limit of detection.