The Occurrence of Amphizoic Amebae in Domestic Animals

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Abstract
Random examination of domestic animals revealed the frequent presence of free-living amoebae in their bodies. In diseased or dead cows, dogs, pigs, rabbits, pigeons and turkeys 15 strains of amoebae were found, belonging to the genera Acanthamoeba (A. polyphaga), Hartmannella (H. vermiformis) and Vahlkampfia (V. avara, V. enterica and V. inornata). They were usually accompanied by other infectious agents in different parts of the host bodies. Pathogenicity of 3 isolates could not be demonstrated by inoculation of laboratory animals. Some features of the isolates differed from those previously known for members of these genera. These strains may be considered amphizoic amoebae according to Page (1974).