title: [Ultrastructure of chronic reticuloendothelial forms of Isospora of sparrows].
abstract: Mononucleated reticulo-endothelial stages of Isospora from Sparrows were studied by T. E. M. during the winter period when the extra intestinal infection is chronic. Results show a very slow evolution from merozoite to trophozoite stage, a transformation of the parasite nucleus and a characteristic reaction of the host cell. These observations are discussed in relation to what is known of hypnozoite and chronic schizogony of Plasmodium.
mesh_terms: D000818:Animals; D001717:Birds / Q000469:parasitology*; D007549:Isospora / Q000254:growth & development / Q000648:ultrastructure*; D012157:Mononuclear Phagocyte System / Q000469:parasitology*; D013997:Time Factors
vernacular_title: Ultrastructure des formes chroniques réticulo-endothéliales des Isospora du moineau.