C. rodentium-infected mice depleted of CXCL9 had (i) increased evidence of colitis in the cecum, which was shrunken and partially emptied; (ii) shortening and thickening of the colon; (iii) increased incidence of watery stool; and (iv) hematomas along the length of the cecum and colon (Fig. 2C). The gene discussed is CXCL9; the disease is colitis.