theileriosis

noun
thei·​le·​ri·​o·​sis | \ thī-ˌlir-ē-ˈō-səs How to pronounce theileriosis (audio) \
plural theilerioses\ -​ˌsēz How to pronounce theilerioses (audio) \ or theileriosises

Medical Definition of theileriosis

: infection with or disease caused by a protozoan of the genus Theileria especially : east coast fever