Clinical case report: First laboratory-confirmed diagnosis of Rhodococcus equi in a foal in Costa Rica

Rhodococcus equi pneumonia is an important cause of morbidity and mortality in foals all over the world. Prevalence and/or virulence of bacteria is apparently low in Costa Rica since no outbreaks have been reported and suspicious cases show only mild to moderate clinical signs. However, there has ne...

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Autores: Estrada, Roberto, Murillo, Carla, Razquin, Patricio, Barquero-Calvo, Elías, Chacón-Díaz, Carlos, Estrada, Manuel
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:Costa Rica
Recursos:Universidad Nacional de Costa Rica
Repositorio:Portal de Revistas UNA
Idioma:español
OAI Identifier:oai:www.revistas.una.ac.cr:article/13955
Acesso em linha:https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/13955
Access Level:acceso abierto
Palavra-chave:Rhodococcus equi
16SrRNA
foal bronchopneumonia
monetary impact
Costa Rica
bronconeumonía potrillos
impacto monetario
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oai_identifier_str oai:www.revistas.una.ac.cr:article/13955
network_acronym_str CR
network_name_str Costa Rica
repository_id_str
dc.title.none.fl_str_mv Clinical case report: First laboratory-confirmed diagnosis of Rhodococcus equi in a foal in Costa Rica
Reporte de caso clínico Primer diagnóstico de Rhodococcus equi confirmado, laboratorialmente, en un potrillo de Costa Rica
title Clinical case report: First laboratory-confirmed diagnosis of Rhodococcus equi in a foal in Costa Rica
spellingShingle Clinical case report: First laboratory-confirmed diagnosis of Rhodococcus equi in a foal in Costa Rica
Estrada, Roberto
Rhodococcus equi
16SrRNA
foal bronchopneumonia
monetary impact
Costa Rica
Rhodococcus equi
16SrRNA
bronconeumonía potrillos
impacto monetario
Costa Rica
title_short Clinical case report: First laboratory-confirmed diagnosis of Rhodococcus equi in a foal in Costa Rica
title_full Clinical case report: First laboratory-confirmed diagnosis of Rhodococcus equi in a foal in Costa Rica
title_fullStr Clinical case report: First laboratory-confirmed diagnosis of Rhodococcus equi in a foal in Costa Rica
title_full_unstemmed Clinical case report: First laboratory-confirmed diagnosis of Rhodococcus equi in a foal in Costa Rica
title_sort Clinical case report: First laboratory-confirmed diagnosis of Rhodococcus equi in a foal in Costa Rica
dc.creator.none.fl_str_mv Estrada, Roberto
Murillo, Carla
Razquin, Patricio
Barquero-Calvo, Elías
Chacón-Díaz, Carlos
Estrada, Manuel
author Estrada, Roberto
author_facet Estrada, Roberto
Murillo, Carla
Razquin, Patricio
Barquero-Calvo, Elías
Chacón-Díaz, Carlos
Estrada, Manuel
author_role author
author2 Murillo, Carla
Razquin, Patricio
Barquero-Calvo, Elías
Chacón-Díaz, Carlos
Estrada, Manuel
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Rhodococcus equi
16SrRNA
foal bronchopneumonia
monetary impact
Costa Rica
Rhodococcus equi
16SrRNA
bronconeumonía potrillos
impacto monetario
Costa Rica
topic Rhodococcus equi
16SrRNA
foal bronchopneumonia
monetary impact
Costa Rica
Rhodococcus equi
16SrRNA
bronconeumonía potrillos
impacto monetario
Costa Rica
description Rhodococcus equi pneumonia is an important cause of morbidity and mortality in foals all over the world. Prevalence and/or virulence of bacteria is apparently low in Costa Rica since no outbreaks have been reported and suspicious cases show only mild to moderate clinical signs. However, there has never been a definitive diagnosis of the disease in Costa Rican horses. R. equi is a G (+) facultative intracellular bacteria causing pneumonia in young foals (up to 4-5 months of age). This paper refers to a 4-week old Friesian foal with a humerus fracture and omphalophlebitis that was referred to the Equine Hospital, National University, Costa Rica, for surgery. In the postoperatory period, the patient showed signs of moderate bilateral nasal discharge, cough, fever, lymphocytosis, and neutrophilia. The radiological evaluation of the thorax showed a bronchoalveolar pattern in the ventro cranial region of the lungs. The transtracheal aspirate cytology confirmed the presence of suppurative bronchopneumonia. The samples were aerobically cultured in Columbia agar + 5% blood at 37°C for 24h. The macroscopic, microscopic, and biochemical characteristics of the isolated bacteria, in addition to the partial sequencing of the “16SrRNA” gene, were compatible with R. equi. The foal was euthanized due to the humerus re-fracture before the R. equi diagnosis was confirmed. R. equi can potentially cause a severe monetary impact in the equine breeding industry; consequently, accurate diagnosis and treatments are important to avoid the emergence of resistant strains. Further studies are needed to determine the local prevalence of the pathogen and to evaluate its impact.
publishDate 2020
dc.date.none.fl_str_mv 2020-02-02
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dc.identifier.none.fl_str_mv https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/13955
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url https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/13955
identifier_str_mv 10.15359/rcv.38-1.4
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https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/13955/19485
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dc.publisher.none.fl_str_mv Universidad Nacional, Costa Rica
publisher.none.fl_str_mv Universidad Nacional, Costa Rica
dc.source.none.fl_str_mv Ciencias Veterinarias; Vol. 38 No. 1 (2020): Ciencias Veterinarias (Enero-junio); 43-52
Ciencias veterinarias; Vol. 38 Núm. 1 (2020): Ciencias Veterinarias (Enero-junio); 43-52
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repository.name.fl_str_mv Portal de Revistas UNA - Universidad Nacional de Costa Rica
repository.mail.fl_str_mv andrea.mora.campos@una.cr
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spelling Clinical case report: First laboratory-confirmed diagnosis of Rhodococcus equi in a foal in Costa RicaReporte de caso clínico Primer diagnóstico de Rhodococcus equi confirmado, laboratorialmente, en un potrillo de Costa RicaEstrada, RobertoMurillo, CarlaRazquin, PatricioBarquero-Calvo, ElíasChacón-Díaz, CarlosEstrada, ManuelRhodococcus equi16SrRNAfoal bronchopneumoniamonetary impactCosta RicaRhodococcus equi16SrRNAbronconeumonía potrillosimpacto monetarioCosta RicaRhodococcus equi pneumonia is an important cause of morbidity and mortality in foals all over the world. Prevalence and/or virulence of bacteria is apparently low in Costa Rica since no outbreaks have been reported and suspicious cases show only mild to moderate clinical signs. However, there has never been a definitive diagnosis of the disease in Costa Rican horses. R. equi is a G (+) facultative intracellular bacteria causing pneumonia in young foals (up to 4-5 months of age). This paper refers to a 4-week old Friesian foal with a humerus fracture and omphalophlebitis that was referred to the Equine Hospital, National University, Costa Rica, for surgery. In the postoperatory period, the patient showed signs of moderate bilateral nasal discharge, cough, fever, lymphocytosis, and neutrophilia. The radiological evaluation of the thorax showed a bronchoalveolar pattern in the ventro cranial region of the lungs. The transtracheal aspirate cytology confirmed the presence of suppurative bronchopneumonia. The samples were aerobically cultured in Columbia agar + 5% blood at 37°C for 24h. The macroscopic, microscopic, and biochemical characteristics of the isolated bacteria, in addition to the partial sequencing of the “16SrRNA” gene, were compatible with R. equi. The foal was euthanized due to the humerus re-fracture before the R. equi diagnosis was confirmed. R. equi can potentially cause a severe monetary impact in the equine breeding industry; consequently, accurate diagnosis and treatments are important to avoid the emergence of resistant strains. Further studies are needed to determine the local prevalence of the pathogen and to evaluate its impact.Neumonía por Rhodococcus equi es importante causa de morbilidad y mortalidad en potrillos de todo el mundo. La prevalencia y/o virulencia de la bacteria es, aparentemente, baja en Costa Rica, pues nunca han sido reportados brotes. Los casos sospechosos muestran solamente signos clínicos de leves a moderados. Sin embargo, un diagnóstico definitivo de la enfermedad nunca ha sido hecho anteriormente en caballos costarricenses. R. equi es una bacteria G (+) facultativa intracelular que causa neumonía en potrillos jóvenes (hasta 4-5 meses de edad). Este caso corresponde a un potrillo Frisón de cuatro semanas de edad que fue referido para cirugía al Hospital Equino, Universidad Nacional de Costa Rica, con una fractura de húmero y onfaloflebitis. En el período postoperatorio, el paciente presentó: signos de secreción nasal bilateral moderada, tos, fiebre, linfocitosis y neutrofilia. La evaluación radiológica del tórax mostró un patrón bronquialveolar en el aspecto ventrocraneal de los pulmones. La citología del aspirado transtraqueal confirmó un cuadro de bronconeumonía supurativa. Las muestras fueron cultivadas aeróbicamente en agar Columbia + 5% sangre a 37°C por 24h. Las características macroscópicas, microscópicas, bioquímicas y la identificación, por medio de la secuenciación parcial del gen “16SrRNA”, de la bacteria aislada fueron compatibles con R. equi. El potrillo fue eutanasiado debido a re-fractura del húmero antes de que el diagnóstico de R. equi fuera confirmado. R. equi tiene el potencial de causar un severo impacto monetario a la industria de cría equina, por lo cual, es importante hacer el diagnóstico y tratamiento precisos para evitar el surgimiento de cepas resistentes. Son necesarios más estudios para determinar la prevalencia local del patógeno y evaluar su impacto.Universidad Nacional, Costa Rica2020-02-02info:eu-repo/semantics/publishedVersiontextoartículo originalhttp://purl.org/coar/resource_type/c_18cfhttp://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/articleapplication/pdftext/htmlapplication/epub+zipvideo/mp4https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/1395510.15359/rcv.38-1.4Ciencias Veterinarias; Vol. 38 No. 1 (2020): Ciencias Veterinarias (Enero-junio); 43-52Ciencias veterinarias; Vol. 38 Núm. 1 (2020): Ciencias Veterinarias (Enero-junio); 43-522215-45070250-5649reponame:Portal de Revistas UNAinstname:Universidad Nacional de Costa Ricainstacron:UNAspahttps://www.revistas.una.ac.cr/index.php/veterinaria/article/view/13955/19431https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/13955/19484https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/13955/19485https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/13955/19641Derechos de autor 2020 Revista Ciencias Veterinariasacceso abiertohttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccess2020-07-02T14:04:39Zoai:www.revistas.una.ac.cr:article/13955Portal de revistashttp://revistas.una.ac.cr/Universidadhttp://www.una.ac.crhttps://revistas.una.ac.cr/index.php/index/oaiandrea.mora.campos@una.crCosta RicaNo aplicaNo aplicaNo aplicaopendoar:2020-07-02T14:04:39Portal de Revistas UNA - Universidad Nacional de Costa Ricafalse
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