HLA-C and Nematoda infectious disease: Lastly, resistance to small bowel and abomasum/gastric nematode infections of sheep, have highlighted a number of suggestive QTL[40-42], homologous to Tm17, and downstream of Tm10. All studies demonstrated that resistance/susceptibility to GI nematode infection is under multi-genetic control, with MHC and non-MHC loci important in outcome[43].