Isolation of Coccidioides Immitis (Stiles) from the Soil

Stewart, Ray E.; Meyer, K. F.

doi:10.3181/00379727-29-6159

Cited by 98 publications

(35 citation statements)

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“…These results prompted researchers to attempt to define ecological factors associated with the presence of Coccidioides, as well as to determine directly the distribution of the fungus in the soil at local sites (35)(36)(37)(38). Stewart and Meyer were the first to show that Coccidioides could be isolated from soil (39). Extensive soil mapping indicated that the distribution of the fungus was sporadic and localized (40).…”

Section: Coccidioides In the Environmentmentioning

confidence: 99%

“…Recovery of environmental isolates by use of semiselective plating has had a low rate of success, due at least partially to overgrowth of Coccidioides by other soil fungi (44). The most efficient way of isolating the organism from the soil involves using mice as biosensors; injecting susceptible animals with soil extracts results in purification of Coccidioides from soil microbes and allows recovery of pure cultures (18,37,39,47). Unfortunately, this approach is cost-prohibitive, requires fungal virulence, and, as such, is a biased method for isolating environmental strains.…”

Section: Coccidioides In the Environmentmentioning

confidence: 99%

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Recent Advances in Our Understanding of the Environmental, Epidemiological, Immunological, and Clinical Dimensions of Coccidioidomycosis

et al. 2013

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SUMMARY Coccidioidomycosis is the endemic mycosis caused by the fungal pathogens Coccidioides immitis and C. posadasii . This review is a summary of the recent advances that have been made in the understanding of this pathogen, including its mycology, genetics, and niche in the environment. Updates on the epidemiology of the organism emphasize that it is a continuing, significant problem in areas of endemicity. For a variety of reasons, the number of reported coccidioidal infections has increased dramatically over the past decade. While continual improvements in the fields of organ transplantation and management of autoimmune disorders and patients with HIV have led to dilemmas with concurrent infection with coccidioidomycosis, they have also led to advances in the understanding of the human immune response to infection. There have been some advances in therapeutics with the increased use of newer azoles. Lastly, there is an overview of the ongoing search for a preventative vaccine.

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Section: Coccidioides In the Environmentmentioning

confidence: 99%

Section: Coccidioides In the Environmentmentioning

confidence: 99%

Recent Advances in Our Understanding of the Environmental, Epidemiological, Immunological, and Clinical Dimensions of Coccidioidomycosis

et al. 2013

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“…Stewart et Meyer [1932] ont isolé pour la première fois le C. immitis à partir du sol en Californie. Postérieurement et dans d'autres régions, Smith, Emmons, etc... en ont fait de même [Negroni, 1966], En Argentine, dans les zones arides du Rio Colorado, tandis qu'il réalisait une étude épidémiologique, Negroni [1966] a trouvé un grand nombre de malades présentant une réaction positive à la coccidioïdine.…”

Section: Dermatophytes Géophilesunclassified

Le sol, réservoir des agents de mycoses opportunistes

Pereiro-Miguens¹

1979

Dermatology

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We studied the soil as a reservoir of vegetable detritus, keratinous materials of birds, terrestrial animals and micro-organisms. In the last group we can mention the bacteria and fungi. We classified the opportunistic fungi in three groups: (1) parasites of plants or growing on the vegetable detritus; (2) geophylic dermatophytes; (3) pathogenic fungi that in some cases behave like opportunistic ones. In each group we studied the opportunistic fungi of the soil, their relations with its chemical and physical composition, the mycoflora and the role of animal habitats.

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“…tilie lliliblel' of cases wits Small11 because of the( limlited timle of exposure and t he sniall i'oop st rengt h, but in 1 943 cases uii ibered 55.0-50 and the( r'at e per 1 ,000) was 188. 81, not (lissinhilar to t hat of Sou thlwest Paci.fic. in thle salute year'.…”

Section: Central and South Pacifc Areamentioning

confidence: 99%