Microsporidia


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Related to Microsporidia: cryptosporidium, Enterocytozoon bieneusi

mi·cro·spor·id·i·a

(mī'krō-spōr-id'ē-ă),
Common name for members of the protozoan phylum Microspora. It includes some 80 genera parasitizing all classes of vertebrates and many invertebrates, especially the insects. Several genera, such as Encephalitozoon, Enterocytozoon, Nosema, Vittaforma, Pleistophora, and Trachipleistophora have been implicated in the infection of immunocompromised humans.

Microsporidia

A phylum of ubiquitous spore-forming unicellular parasites, which have been reclassified as fungi. Microsporidia have a long polar filament and a polar cap that serves as a means of extrusion. They primarily infect infects, but crustaceans, fish and humans are not immune. Of the estimated million species of Microsporidia, 1500 have been formally named.

Microsporidia genera that cause human disease
• Brachiola—B algerae, B connori, B vesicularum.
• Encephalitozoon—E cuniculi, E hellem, E intestinalis.
• Enterocytozoon—E bieneusi (prolonged production of intra- and extracellular spores by Enterocytozoon bieneusi is not always associated with systemic disease).
• Microsporidium—M ceylonensis, M africanum.
• Nosema—N ocularum.
• Pleistophora species.
• Trachipleistophora—T hominis, T anthropophthera.
• Vittaforma species—V corneae.

Microsporidia

Parasitology A phylum of ubiquitous unicellular obligate intracellular protozoans–eg, Enterocytozoon, which infect insects and vertebrates, and humans. See Encephalitozoon species.

Microsporidia

an order of the subphylum Sporozoa characterized by having small spores and one polar capsule. Common occurrence is as parasites of arthropods and fish. Includes nosema. In finfish may cause xenomas, in crustaceans cause 'cotton flesh'.
References in periodicals archive ?
For both patients we report, microsporidia were not detected in fecal samples of both patients during the 6-month follow-up.
Ishalli olgularda Microsporidia sikliginin farkli boyama yontemleriyle arastirilmasi, Mikrobiyol Bul 2012; 46: 85-92.
Microsporidia are "really nasty parasites, but fascinating," Keeling says.
Table 1 shows the underlying diseases of patients found with microsporidia in their feces.
Comparison of three staining methods for detecting Microsporidia in fluids.
The presence of opportunistic parasites Cryptosporidium parvum, Cyclospora cayetanensis, Isospora belli and Microsporidia are documented in patients with AIDS (4).
This report from the American Water Works Association summarizes the results of a nucleic acid extraction method for microsporidia designated on the EPA's Candidate Contaminant List (CCL).
Miao YM, Awad-El-Kariem FM, Franzen C, Ellis DS, Muller A, Counihan HM, Hayes PJ, Gazzard BG (2000) Eradication of cryptosporidia and microsporidia following successful antiretroviral therapy.
Other species of protozoan parasites can also be found in the human gut, but they are not pathogenic, except Microsporidia sp.
Sporozoa": Apicomplexa, Microsporidia, Haplosporidia, Paramyxea, Myxosporidia and Actinosporidia.