Coccidioides immitis


Coccidioides immitis
Ascomycota
Scientific classification
Kingdom: Fungi
Division: Ascomycota
Class: Euascomycetes
Order: Onygenales
Family: Onygenaceae
Genus: Coccidioides
Binomial name
Coccidioides immitis
G.W. Stiles
Sputum culture of Coccidioides immitis on Sabouraud's medium, showing white, cottony fungus growth.

Coccidioides immitis is a pathogenic fungus that resides in the soil in certain parts of the southwestern United States, northern Mexico, and a few other areas in the Western Hemisphere.

It, along with its relative Coccidioides posadasii, can cause a disease called coccidioidomycosis (Valley Fever), and it is a rare cause of meningitis, mostly in immunocompromised persons. It has been declared a select agent by both the U.S. Department of Health and Human Services and the U.S. Department of Agriculture, and is considered a biosafety level 3 pathogen.

In popular culture

Coccidioides immitis is used as a plot device in Thunderhead, a novel by Douglas Preston and Lincoln Child. The fungus (prepared from infected victims) is revealed to be the principal agent in corpse powder (based on corpse poison used by Witch). It was also mentioned by the fictional antihero Dr Gregory House (played by actor James Hugh Calum Laurie) on the Television Series, House MD (episode Lines in the Sand).

Microscopic appearance of an old culture of Coccidioides immitis, showing fragmented chlamydospores. This is the infective form of the fungus occurring in nature.
Septate hyphae of Coccidioides immitis with 90 degree branching and thick walled barrel shaped arthoconidia alternating with empty cells.



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  • Coccidioides immitis —   Coccidioides …   Wikipedia Español

  • Coccidioides immitis — паразитический грибок рода Coccidioides сем. Cymnoascaceae кл. Ascomycetes, характеризующийся ветвящимся мицелием, распадающимся на артроспоры, заражение которыми происходит гл. обр. воздушно пылевым путем; возбудитель кокцидиоидоза …   Большой медицинский словарь

  • Coccidioides immitis — a species that is found primarily in the San Joaquin Valley of California and causes coccidioidomycosis and fungal pneumonia …   Medical dictionary

  • Coccidioides — Systematik Abteilung: Schlauchpilze (Ascomy …   Deutsch Wikipedia

  • Coccidioides — C. immitis Scientific classification Kingdom: Fungi …   Wikipedia

  • Coccidioides posadasii — Ascomycota Scientific classification Kingdom: Fungi Division: Ascomycota Class: Euascomycetes …   Wikipedia

  • Coccidioides —   Coccidioides …   Wikipedia Español

  • Coccidioides — A genus of fungi found in the soil of the semi arid areas of the Southwestern U.S. and smaller areas throughout Central and South America, but has not been found elsewhere. The only pathogenic species, C. immitis, causes coccidioidomycosis.… …   Medical dictionary

  • Coccidioidomycosis — Classification and external resources Histopathological changes in a case of coccidioidomycosis of the lung showing a large fibrocaseous nodule. ICD 10 B …   Wikipedia

  • coccidioidomycosis — A variable, benign, severe, or sometimes fatal systemic mycosis due to inhalation of arthroconidia of Coccidioides immitis. In benign forms of the infection, the lesions are limited to the upper respiratory tract, lungs, and near lymph node s; in …   Medical dictionary


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