Details:

Alternative Title:
PLoS One
Publisher's site:
http://dx.doi.org/10.1371/journal.pone.0175081
Personal Author:
Chow, Nancy A. ; Lindsley, Mark D. ; McCotter, Orion Z. ; Kangiser, Dave ; Wohrle, Ron D. ; ... More +
Chow, Nancy A. ; Lindsley, Mark D. ; McCotter, Orion Z. ; Kangiser, Dave ; Wohrle, Ron D. ; Clifford, Wayne R. ; Yaglom, Hayley D. ; Adams, Laura E. ; Komatsu, Kenneth ; Durkin, Michelle M. ; Baker, Rocky J. ; Shubitz, Lisa F. ; Derado, Gordana ; Chiller, Tom M. ; Litvintseva, Anastasia P. Less -
Description:
Coccidioides is a soil-dwelling fungus that causes coccidioidomycosis, a disease also known as Valley fever, which affects humans and a variety of animal species. Recent findings of Coccidioides in new, unexpected areas of the United States have demonstrated the need for a better understanding of its geographic distribution. Large serological studies on animals could provide important information on the geographic distribution of this pathogen. To facilitate such studies, we used protein A/G, a recombinant protein that binds IgG antibodies from a variety of mammalian species, to develop an enzyme immunoassay (EIA) that detects IgG antibodies against Coccidioides in a highly sensitive and high-throughput manner. We showed the potential of this assay to be adapted to multiple animal species by testing a collection of serum and/or plasma samples from dogs, mice, and humans with or without confirmed coccidioidomycosis. We then evaluated the performance of the assay in dogs, using sera from dogs residing in a highly endemic area, and found seropositivity rates significantly higher than those in dogs of non-endemic areas. We further evaluated the specificity of the assay in dogs infected with other fungal pathogens known to cross-react with Coccidioides. Finally, we used the assay to perform a cross-sectional serosurvey investigating dogs from Washington, a state in which infection with Coccidioides has recently been documented. In summary, we have developed a Coccidioides EIA for the detection of antibodies in canines that is more sensitive and has higher throughput than currently available methods, and by testing this assay in mice and humans, we have shown a proof of principle of its adaptability for other animal species.
Subject:
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Animals
Antibodies, Fungal
Coccidioides
Coccidioidomycosis
Cross-Sectional Studies
Dog Diseases
Dogs
Immunodiffusion
Immunoenzyme Techniques

Source:
PLoS One. 12(4).
Pubmed ID:
28380017
Pubmed Central ID:
PMC5381914
Document Type:
Journal Article
Place as Subject:
Washington
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:e6d210c00718e2fe82bc6d93cd5694c8dee0345ce0c18989d5df3de266e3b3dc
File Type:

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