Identification of an enzootic diarrhea (“Shasta river crud”) in Northern California as potomac horse fever

A disease entity known as the “Shasta River crud” (SRC) has been recognized for at least 25 years in areas of Siskiyou and Shasta counties, in far northern California. It is characterized by anorexia, lethargy, diarrhea, variable fever, and in some cases laminitis, and is tetracycline responsive. Th...

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Autores principales: Madigan, John E., Barlough, Jeffrey E., Rikihisa, Yasuko, Wen, Bohai, Miller, Paul E., Sampson, Thomas J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Published by Elsevier Inc. 1997
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7134899/
http://dx.doi.org/10.1016/S0737-0806(97)80046-9
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author Madigan, John E.
Barlough, Jeffrey E.
Rikihisa, Yasuko
Wen, Bohai
Miller, Paul E.
Sampson, Thomas J.
author_facet Madigan, John E.
Barlough, Jeffrey E.
Rikihisa, Yasuko
Wen, Bohai
Miller, Paul E.
Sampson, Thomas J.
author_sort Madigan, John E.
collection PubMed
description A disease entity known as the “Shasta River crud” (SRC) has been recognized for at least 25 years in areas of Siskiyou and Shasta counties, in far northern California. It is characterized by anorexia, lethargy, diarrhea, variable fever, and in some cases laminitis, and is tetracycline responsive. The incidence is seasonal, with cases occurring in the spring and summer months near the Shasta and Klamath rivers. Limited serologic testing has provided some suggestion that the illness may be linked to Ehrlichia risticii, the agent of Potomac horse fever. Here we report the identification of E. risticii genomic DNA in blood buffy-coat cells from horses with SRC, and so provide the first definitive evidence that this enzootic diarrhea is in fact Potomac horse fever.
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spelling pubmed-71348992020-04-08 Identification of an enzootic diarrhea (“Shasta river crud”) in Northern California as potomac horse fever Madigan, John E. Barlough, Jeffrey E. Rikihisa, Yasuko Wen, Bohai Miller, Paul E. Sampson, Thomas J. J Equine Vet Sci Article A disease entity known as the “Shasta River crud” (SRC) has been recognized for at least 25 years in areas of Siskiyou and Shasta counties, in far northern California. It is characterized by anorexia, lethargy, diarrhea, variable fever, and in some cases laminitis, and is tetracycline responsive. The incidence is seasonal, with cases occurring in the spring and summer months near the Shasta and Klamath rivers. Limited serologic testing has provided some suggestion that the illness may be linked to Ehrlichia risticii, the agent of Potomac horse fever. Here we report the identification of E. risticii genomic DNA in blood buffy-coat cells from horses with SRC, and so provide the first definitive evidence that this enzootic diarrhea is in fact Potomac horse fever. Published by Elsevier Inc. 1997-05 2007-11-12 /pmc/articles/PMC7134899/ http://dx.doi.org/10.1016/S0737-0806(97)80046-9 Text en Copyright © 1997 Published by Elsevier Inc. Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.
spellingShingle Article
Madigan, John E.
Barlough, Jeffrey E.
Rikihisa, Yasuko
Wen, Bohai
Miller, Paul E.
Sampson, Thomas J.
Identification of an enzootic diarrhea (“Shasta river crud”) in Northern California as potomac horse fever
title Identification of an enzootic diarrhea (“Shasta river crud”) in Northern California as potomac horse fever
title_full Identification of an enzootic diarrhea (“Shasta river crud”) in Northern California as potomac horse fever
title_fullStr Identification of an enzootic diarrhea (“Shasta river crud”) in Northern California as potomac horse fever
title_full_unstemmed Identification of an enzootic diarrhea (“Shasta river crud”) in Northern California as potomac horse fever
title_short Identification of an enzootic diarrhea (“Shasta river crud”) in Northern California as potomac horse fever
title_sort identification of an enzootic diarrhea (“shasta river crud”) in northern california as potomac horse fever
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7134899/
http://dx.doi.org/10.1016/S0737-0806(97)80046-9
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