The gene encoding KRT17, which promotes epithelial cell proliferation as well as a TH1/TH17 response [38], had significantly increased transcript levels at the site of infection at Days 1 and 4 post-challenge (LFC 1.76 and 1.39, respectively), and Krt16 was highly expressed at the site of infection at all three time points, with LFCs greater than 5. The gene discussed is KRT17; the disease is infection.