Definition: A genus of trichuroid nematodes parasitic in the liver and intestines of many mammals and birds. Two species, C. hepatica and C. philippinensis, produce often fatal infections in man.
a genus of nematodes in liver & intestines of birds & mammals including man; infection: coord IM with ENOPLIDA INFECTIONS (IM); for antigens, coord with ANTIGENS, HELMINTH, for antibodies, coord with ANTIBODIES, HELMINTH