nematodiriasis

noun

nem·​a·​to·​di·​ri·​a·​sis ˌnem-ə-ˌtō-di-ˈrī-ə-səs 

plural nematodiriases -ˌsēz 

: an infestation of the small intestine especially of sheep by nematode worms of the genus Nematodirus that is characterized primarily by the scours