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Infect Immun. 1972 July; 6(1): 77-82
Copyright © 1972 American Society for Microbiology. All Rights Reserved.

Mycoplasma-Like Organism, Parasite of Red Blood Cells of an Amphibian, Hydromantes italicus (Spelerpes fuscus)

Laboratori di Microbiologia, Istituto Superiore di Sanità, Roma, Italia

ABSTRACT

In the present investigation we studied a parasite of red blood cells in the amphibian Hydromantes italicus. The parasite, a globular microorganism having a diameter of 0.25 to 0.3 µm, was found in large numbers in vacuoles of red blood cells. As seen by electron microscopy, it possesses no cell wall and has the morphological appearance of a mycoplasma. The parasite has great motility by mechanisms not yet elucidated. It is possible to transmit the infection experimentally from infected to healthy amphibians. Culture of the microorganism, named Chondrostagon haematicum, in artificial media has not yet been successful.