Investigations on hookworm infections in dogs, cats, and man were carried out in Taiwan during the summer of 1966. Ancylostoma ceylanicum was found in two of eight dogs and in three of 10 cats captured in the area of Taipei. Anthelmintic treatment revealed. A. ceylanicum in two of 12 aborigines and in three of 128 Chinese of the general population. A. braziliense was not found in either man or animals.
Department of Medical Zoology, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Department of Parasitology, College of Medicine, National Taiwan University, Taipei, Taiwan.