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1.
Rev. MVZ Córdoba ; 19(3): 4350-4357, Sept.-Dec. 2014. ilus, tab
Article in Spanish | LILACS, COLNAL | ID: lil-730969

ABSTRACT

We report an outbreak of contagious ecthyma (CE) in a herd of goats at Paso Canoas quarantine station, Panama. The goats were adult intact females. Visible clinical signs became apparent from day 13 after the start of quarantine. We performed clinical examination. Serum biopsy and scabs were collected from crusted lesions in the epithelium of the lips, nose and eyelid corners. Samples were studied by histopathology,complement fixation test, transmission electron microscopy (TEM), DAS-ELISA, viral isolationand nucleic acid amplification tests. Histopathology revealed ortho and parakeratotic hyperkeratosis, epithelial hyperplasia, viral inclusion bodies, keratinocytes with balonoid degeneration, vesicles with neutrophils and degenerated cells, in superficial dermis there is marked neovascularization. Complement fixation test, DAS-ELISA and nucleic acid amplification tests resulted positive for contagious ecthyma. TEM showed viral particles, consistent with Parapoxvirus. Clinical and laboratory findings were consistent with poxvirus infection in the quarantine goat herd.


El presente reporte describe un brote de ectima contagioso (EC) en un rebaño de cabras. Este caso tuvo lugar en la estación cuarentenaria de Paso Canoas, Panamá. Las cabras eran hembras, adultas, enteras y los signos clínicos fueron observados 13 días después de dar inicio al período de cuarentena. Se practicó el examen clínico, se colectaron fragmentos de costras y suero, además se realizaron biopsias de lesiones costrosas en el epitelio de los labios, nariz y comisuras palpebrales. Las muestras fueron analizadas por histopatología, prueba de fijación de complemento, microscopía electrónica de transmisión (MET), DAS-ELISA, aislamiento viral y amplificación de ácidos nucleicos. La histopatología reveló hiperqueratosis orto y paraqueratósica, hiperplasia epitelial, cuerpos de inclusión viral, eosinofílicos intracitoplasmáticos, degeneración balonoide de los queratinocitos, así como vesículas que contenían neutrófilos y células degeneradas; además, en la dermis superficial se observó una marcada neovascularización y edema. Las pruebas de fijación de complemento, DAS-ELISA y amplificación de ácidos nucléicos resultaron positivas para EC. El resultado de MET reveló partículas virales consistentes con Parapoxvirus. Los hallazgos clínicos y los resultados de laboratorio confirmaron el brote infeccioso de Parapoxvirus, agente etiológico de EC, en el hato en cuarentena.


Subject(s)
Orf virus , Disease Prevention , Goats , Parapoxvirus
2.
Int J Antimicrob Agents ; 21(3): 285-8, 2003 Mar.
Article in English | MEDLINE | ID: mdl-12636993

ABSTRACT

Seventy-nine Klebsiella pneumoniae and 124 Escherichia coli clinical strains, isolated consecutively during August-October 2001 in two Greek hospitals, were examined for production of extended-spectrum beta-lactamases (ESBLs). Seventy-one (35%) isolates (46 K. pneumoniae and 25 E. coli) were ESBL-positive by phenotypic methods. Isoelectric focusing of beta-lactamases and PCR assays for bla genes showed that SHV-5-type ESBLs were the most frequent (45 isolates, 22%) followed by CTX-M (24 isolates, 12%) and IBC (three isolates, 1.5%). The latter two ESBL types may have been established recently in this setting.


Subject(s)
Escherichia coli/enzymology , Klebsiella pneumoniae/enzymology , beta-Lactamases/biosynthesis , Base Sequence , DNA, Bacterial/genetics , Drug Resistance, Bacterial/genetics , Escherichia coli/isolation & purification , Escherichia coli Infections/drug therapy , Escherichia coli Infections/epidemiology , Escherichia coli Infections/microbiology , Genes, Bacterial , Greece/epidemiology , Humans , In Vitro Techniques , Isoelectric Focusing , Klebsiella Infections/drug therapy , Klebsiella Infections/epidemiology , Klebsiella Infections/microbiology , Klebsiella pneumoniae/drug effects , Klebsiella pneumoniae/genetics , Klebsiella pneumoniae/isolation & purification , Polymerase Chain Reaction , beta-Lactamases/classification , beta-Lactamases/drug effects , beta-Lactamases/genetics , beta-Lactamases/isolation & purification
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