Johns Hopkins ABX Guide
Blastomyces spp.
Blastomyces spp. is a topic covered in the Johns Hopkins ABX Guide.
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MICROBIOLOGY
- Thermally dimorphic fungus: mycelial in nature (room temperature) and yeast in tissue (37°C).
- Yeast form is 8 x 30 micron with broad-based budding [Fig 1], differentiates from Histoplasma narrow-based budding.
- Fungus especially found in moist, acid soils in forests, decomposing matter.
- Blastomycosis:
- Blastomyces dermatiditis: usually strikes immunocompetent people.
- B.gilchristii
- B. helicus (previously Emmonsia helicus): this organism does not appear to produce conidia. Described to date as a rare cause of often disseminated human infection in the Western U.S., Rocky Mountains, Western Canada, and in immunocompromised hosts--differentiating from B. dermatitidis[2].
- Cutaneous findings not yet described with this species.
- This species may be misdiagnosed as H. capsulatum or B. dermatitidis.
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Last updated: March 5, 2019
Citation
Auwaerter, Paul G, and John G Bartlett. "Blastomyces Spp." Johns Hopkins ABX Guide, The Johns Hopkins University, 2019. Johns Hopkins Guide, www.hopkinsguides.com/hopkins/view/Johns_Hopkins_ABX_Guide/540059/all/Blastomyces_spp_.
Auwaerter PG, Bartlett JG. Blastomyces spp. Johns Hopkins ABX Guide. The Johns Hopkins University; 2019. https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_ABX_Guide/540059/all/Blastomyces_spp_. Accessed October 17, 2019.
Auwaerter, P. G., & Bartlett, J. G. (2019). Blastomyces spp. In Johns Hopkins ABX Guide. Available from https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_ABX_Guide/540059/all/Blastomyces_spp_
Auwaerter PG, Bartlett JG. Blastomyces Spp [Internet]. In: Johns Hopkins ABX Guide. The Johns Hopkins University; 2019. [cited 2019 October 17]. Available from: https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_ABX_Guide/540059/all/Blastomyces_spp_.
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TY - ELEC
T1 - Blastomyces spp.
ID - 540059
A1 - Auwaerter,Paul,M.D.
AU - Bartlett,John,M.D.
Y1 - 2019/03/05/
BT - Johns Hopkins ABX Guide
UR - https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_ABX_Guide/540059/all/Blastomyces_spp_
PB - The Johns Hopkins University
DB - Johns Hopkins Guide
DP - Unbound Medicine
ER -