Blastomyces dermatitidis and Blastomycosis

BLASTOMYCOSIS Kingdom: Fungi Phylum: Ascomycota Class: Euascomycetes regularise: Onygenales Family: Onygenaceae Genus: Blastomyces (Blastomyces dermatitidis is the only species included in this genus.) Blastomycosis, also called Gilchrists Disease, is caused by Blastomyces dermatitidis. This fungus is thermally dimorphic and a probable saprobe of the soil. It specifically inhabits decaying wood material, animal feces, plant fragments, and insect remains. Soil with an vinegarish pH and a high organic content is contributive to growth. At room temperature and in its natural site in soil, it grows as a mold. However, when the spores be inhaled and environmental temperature is elevated , B. dermatitidis conidia switch over into invasive large yeasts. While this is non a common disorder, it does conk sporadically in the US. In the U.S.A., the enzootic area for blastomycosis includes the Ohio, Missouri, and manuscript river valleys and Midwestern states bordering the Great Lakes. There are estimated 1-2 nerves per 100,000 people in these endemic areas, which all permit close proximity to waterways. Although a review of death records for 2002 indicated blastomycosis was the account underlying cause of death for 44 persons in the united States, epidemiologic patterns for this disease have not been fully characterized because blastomycosis is not nationally notifiable. It is a reportable disease only in Wisconsin and small, local areas of other states. fit to the CDC, there is a 5% mortality rate. African-type B. dermatitidis strains isolated from cases in Africa also exist. It was demonstrated that the African-type strains are not identical to the normality American strains. The disease is hereditary by inhaling spore-laden dust. Person-to-person contagious disease does not occur. It is more than common in men who produce in open-air(prenominal) occupations (construction, farming, etc.) Analysis of information regarding sporadic case repo rts suggests the risk for disease may be gre! ater among old (35-55 years)... If you want to notice a full essay, order it on our website: OrderEssay.net

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