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Development of a Duplex Real-Time PCR Assay for the Differentiation of Blastomyces dermatitidis and Blastomyces gilchristii and a Retrospective Analysis of Culture and Primary Specimens from Blastomycosis Cases from New York (2005 to 2019)
Author(s) -
M.R. Kaplan,
YanChun Zhu,
Julianne V. Kus,
Lisa R. McTaggart,
Vishnu Chaturvedi
Publication year - 2021
Publication title -
journal of clinical microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.349
H-Index - 255
eISSN - 1070-633X
pISSN - 0095-1137
DOI - 10.1128/jcm.02078-20
Subject(s) - blastomyces dermatitidis , blastomyces , blastomycosis , biology , microbiology and biotechnology , taqman , polymerase chain reaction , virology , immunology , genetics , gene
Blastomycosis due to Blastomyces dermatitidis and Blastomyces gilchristii is a significant cause of respiratory mycoses in North America with occasional reported outbreaks. We developed a highly sensitive, specific, and reproducible TaqMan duplex real-time PCR assay for the differentiation of B. dermatitidis and B. gilchristii The new assay permitted retrospective analysis of Blastomyces cultures (2005 to 2019) and primary clinical specimens from blastomycosis cases (2013 to 2019) from New York patients. We identified B. dermatitidis as the predominant pathogen in 38 cases of blastomycosis, while B. gilchristii was a minor pathogen involved in five cases; these findings expand understanding of blastomycosis in New York. The duplex real-time PCR assay could be implemented in reference and public health laboratories to further understand the ecology and epidemiology of blastomycosis due to B. dermatitidis and B. gilchristii .

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