MAP3K4 and malaria: The strong positive genetic correlation between Eimeria and cestodes resistance suggests the existence of common underlying genetic mechanisms, one of which may be within the MHC. Moreover, two of the candidate genes that we identified for cestode resistance, namely the mitogen-activated protein 3 kinase 4 (MAP3K4) and tumour necrosis factor alpha-induced protein 1 (TNFAIP1) genes, encode proteins that are associated with host immune response to malaria, a disease caused by a parasite that belongs to the same phylum as Eimeria [42–44].