FIG. 2.

Quantitation of jejunal SP levels in macaques before and after Cryptosporidium infection. SP protein measurements were studied by competitive ELISA of jejunal biopsies derived from macaques (n = 3) before C. parvum challenge and after C. parvum challenge. Results are expressed as picograms of SP in 1 mg of total protein extract. *, P = 0.011 (Student's paired t test for SP protein level in prechallenge biopsies versus postchallenge biopsies derived from macaques) (error bars represent standard errors of the means).