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Fecal bacteria associated with protection from Cryptosporidium infection. Species with ≥2.5-fold difference in %RA are shown. Stool samples from healthy adults were collected prior to (or within 48 h of) exposure to Cryptosporidium oocysts. The median %RAs of the infected (Inf; n = 6) and uninfected (Uninf; n = 5) outcome groups are shown. IP bacteria include those in panels A and B.
