Figure 2.

B cell–deficient (μMT) and RAG2^−/− mice are as resistant as wild-type mice when infected intradermally with low doses (10²) of Trypanosoma brucei or Trypanosoma congolense. A, Wild-type C57BL/6 mice were infected intraperitoneally with 10² T. congolense, clone TC13 or 10² T. brucei brucei, strain 10–26. B–D, Groups of 5–6 wild-type C57BL/6 mice (B), B cell–deficient (μMT) (B^−/−) mice (C), or RAG2^−/− mice (D) were infected intradermally in a hind footpad with either 10² T. congolense, clone TC13 or 10² T. brucei brucei, strain 10–26. Parasitemia was monitored after the infection.