To assess Mtb survival in vitro, BMDMs from C57BL/6 mice, unless otherwise specified, were seeded 1 d before infection and infected with a single-cell suspension of Mtb at a MOI of ∼3, as previously described (24) and detailed in SI Materials and Methods. RAW264.7 cells were used when macrophages were transfected with CpsA as described in SI Materials and Methods.
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