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. 2017 May 1;214(5):1297–1311. doi: 10.1084/jem.20161141

Figure 2.

Figure 2.

Spore-initiated infection results in higher BA burdens and milder inflammatory responses than VB-initiated infection. (A) Mice were infected with BA (107 cfu per host) by footpad injection of VB or spores (Sp). Host survival (n = 10–15 mice/group) was monitored for 10 d. (B–D) Mice were infected with BA (2.5 × 106 cfu per host) by footpad injection of VB or Sp. Bacterial burdens in popliteal lymph nodes were determined (B) and neutrophil infiltration in footpad skin was analyzed by flow cytometry (C) 3 d after infection. Footpad swelling (n = 4 mice/group) was determined daily for 3 d (D). Data are representative of two experiments (A, B, and D) or four animals (C) with similar results. *, P < 0.05; **, P < 0.01; Log-rank test (A) and Student’s t test (B).