IL10 and colitis: To examine if S.C./pLJD-CMV-mIL19 could induce IL-10 in vivo, colitis was induced in C57BL/6 mice receiving 2% DSS for 3 days, and 108 CFU of S.C./pLJD-CMV-mIL19 was delivered orally (day 0–3) into the gastrointestinal tract of DSS-induced mice.