Fecha/hora: 12/06/2024 01:13:56

Biblioteca(s): 	INIA La Estanzuela.	
Fecha corriente: 	17/09/2019	
Fecha de la última actualización: 	17/09/2019	
Autoria: 	MACÍAS-RIOSECO, M.; RIET-CORREA, F.; MILLER, M.M.; SONDGEROTH, K.; FRAGA, M.; SILVEIRA, C.S.; UZAL, F.A.; GIANNITTI, F.	
Afiliación: 	MELISSA MACÍAS RIOSECO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FRANKLIN RIET-CORREA AMARAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MYRNA M. MILLER, Wyoming State Veterinary Diagnostic Laboratory, University of Wyoming, Laramie, WY; KERRY SONDGEROTH, Wyoming State Veterinary Diagnostic Laboratory, University of Wyoming, Laramie, WY.; MARTIN FRAGA COTELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CAROLINE DA SILVA SILVEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FRANCISCO A. UZAL, California Animal Health and Food Safety Laboratory, University of California at Davis, San Bernardino, CA .; FEDERICO GIANNITTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./Department of Veterinary Population Medicine, University of Minnesota, Saint Paul, MN.	
Título: 	Bovine abortion caused by Coxiella burnetii : report of a cluster of cases in Uruguay and review of the literature.	
Año de publicación: 	2019	
Fuente/Imprenta: 	Journal of Veterinary Diagnostic Investigation; Jul 2019,  v. 31, n. 4, p.634-639.	
DOI: 	10.1177/1040638719856394	
Idioma: 	Inglés	
Notas: 	Article history: Article first published online: June 10, 2019//Issue published: July 1, 2019.	
Contenido: 	Abstract:
A cluster of 4 bovine abortions caused by Coxiella burnetii occurred in a dairy herd in Uruguay during a 2-mo period. Case 1 consisted of a placenta from an aborted cow; cases 2?4 were fetuses and their placentas. Grossly, the placenta from one aborted cow had moderate, diffuse reddening of the cotyledons and loss of translucency of the intercotyledonary areas. No gross lesions were observed in the other 3 placentas. Microscopically, 2 of 4 placentas had fibrinonecrotizing placentitis with abundant intratrophoblastic gram-negative coccobacilli. C. burnetii was identified intralesionally by immunohistochemistry (IHC) in all 4 placentas, and by PCR and DNA sequencing in 3 placentas analyzed by these techniques. One fetus had mild neutrophilic alveolitis with multinucleate syncytial cells; no gross or microscopic lesions were observed in the other 2 fetuses examined. The lungs of the 3 fetuses were negative for C. burnetii by IHC. Tests performed to investigate other possible causes of abortions in the 4 cases were negative. C. burnetii causes Q fever in humans and coxiellosis in animals. Clusters of abortions in cattle by C. burnetii have not been reported previously, to our knowledge; this bacterium has been considered an opportunistic pathogen associated only with sporadic abortion in cattle. We present herein a cluster of 4 bovine abortions caused by C. burnetii in a dairy farm during a period of 2?mo and a review of the literature on C. burnetii infection in cattle.	
Palabras-Clave: 	ABORTO BOVINO; BOVINE ABORTION; COXIELLA BURNETII; COXIELLOSIS; PLATAFORMA SALUD ANIMAL; Q FEVER; ZOONOSIS.	
Categoría del tema: 	--	
Registro original: 	INIA La Estanzuela (LE)	
Ejemplares: 	LE - (102988-1) - PXI - AP - DD - PP/J. Vet.Dia.Inv./2019 -  -  - DIS