Ten out of 14 infected ear sites (71%, Fig 5B, red line) developed papilloma at 4 weeks post-infection in K17KO mice treated with isotype control while 12 out of 12 infected ear sites developed papilloma in K17KO treated with anti-CXCR3 antibody at 4 weeks post-infection (100%, Fig 5B, dashed black line). This evidence concerns the gene CXCR3 and infection.