Abstract
Hammondia hammondi is a protozoan parasite that, until 1975, was misidentified as Toxoplasma gondii. Recently, the validity of H. hammondi has been questioned. In this article, the authors redescribe the parasite and its life cycle, provide accession numbers to its specimens deposited in a museum, and distinguish it structurally and biologically from T. gondii. Hammondia hammondi was found to be structurally, biologically, and molecularly different from T. gondii.
MeSH terms
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Animals
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Biological Assay
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Brain / parasitology
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Cat Diseases / diagnosis
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Cat Diseases / parasitology*
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Cat Diseases / transmission
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Cats
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Coccidia / pathogenicity
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Coccidia / physiology*
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Coccidia / ultrastructure*
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Coccidiosis / diagnosis
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Coccidiosis / transmission
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Coccidiosis / veterinary*
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Interferon-gamma / genetics
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Intestinal Diseases, Parasitic / veterinary*
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Intestine, Small / parasitology*
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Life Cycle Stages
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Mice
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Mice, Inbred Strains
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Mice, Knockout
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Microscopy, Electron
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Muscles / parasitology
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Oocysts
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Parasitology / methods
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Toxoplasma / physiology
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Toxoplasma / ultrastructure