infection was mildly suppressed in the midguts depleted for p38b in ECs (by 24.1%) or mutant for p38b (p38bex9) (22.5% in p38bex9/+; 37.2%, p38bex9/p38bex9)39 (Supplementary Fig. 2g, i). The gene discussed is MAPK11; the disease is infection.