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enfermedad vesicular porcina - Oficina Regional de la FAO para ...

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Capítulo 2.1.3. — Enfermedad <strong>vesicu<strong>la</strong>r</strong> <strong>porcina</strong>fuertemente positivos. Los sueros que registren una media <strong>de</strong> más <strong>de</strong>l 70% <strong>de</strong> inhibición en <strong>la</strong> dilución1/7,5, pero menos <strong>de</strong>l 70% <strong>de</strong> inhibición en <strong>la</strong> dilución 1/22,5 se consi<strong>de</strong>ran débilmente positivos odudosos. Se consi<strong>de</strong>ran negativos los sueros que muestren menos <strong>de</strong>l 70% <strong>de</strong> inhibición en ambasdiluciones. Deberán confirmarse todos los resultados positivos y los dudosos utilizando <strong>la</strong> prueba <strong>de</strong>NV.SUEROS DE REFERENCIA ESTÁNDAR PARA LAS PRUEBAS SEROLÓGICAS DE LA EVPEl Laboratorio <strong>de</strong> Referencia Mundial <strong>para</strong> <strong>la</strong> Fiebre Aftosa <strong>de</strong> <strong>la</strong> <strong>FAO</strong>/OIE mantiene una serie <strong>de</strong> sueros <strong>de</strong>referencia que han sido exhaustivamente validados por los Laboratorios <strong>de</strong> Referencia Nacionales <strong>de</strong> <strong>la</strong> EVP <strong>de</strong>los Estados Miembros <strong>de</strong> <strong>la</strong> Unión Europea.C. REQUISITOS PARA LAS VACUNAS Y LOS MATERIALES DE DIAGNÓSTICOActualmente no existen vacunas disponibles comercialmente <strong>de</strong> EVP. Los sueros estándar pue<strong>de</strong>n obtenerse <strong>de</strong>lLaboratorio <strong>de</strong> Referencia Mundial <strong>para</strong> <strong>la</strong> Fiebre Aftosa <strong>de</strong> <strong>la</strong> OIE/<strong>FAO</strong> (véase nota a pie <strong>de</strong> página 1). E<strong>la</strong>nticuerpo MAb 5B7 pue<strong>de</strong> conseguirse en el Laboratorio <strong>de</strong> Referencia <strong>de</strong> <strong>la</strong> OIE <strong>para</strong> <strong>la</strong> <strong>enfermedad</strong> <strong>vesicu<strong>la</strong>r</strong><strong>porcina</strong>, que se encuentra en Italia (véase el cuadro mostrado en <strong>la</strong> Parte 3 <strong>de</strong> este Manual).REFERENCIAS1. BROCCHI E., BERLINZANI A., GAMBA D. & DE SIMONE F. (1995). Development of two novel monoclonal antibodybasedELISAs for the <strong>de</strong>tection of antibodies and the i<strong>de</strong>ntification of swine isotypes against swine <strong>vesicu<strong>la</strong>r</strong>disease virus. J. Virol. Methods, 52, 155–167.2. BROCCHI E., ZHANG G., KNOWLES N.J., WILSDEN G., MCCAWLEY J.W., MARQUARDT O., OHLINGER V.F. & DESIMONE F. (1997). Molecu<strong>la</strong>r epi<strong>de</strong>miology of recent outbreaks of swine <strong>vesicu<strong>la</strong>r</strong> disease: two geneticallyand antigenically distinct variants in Europe, 1987–1994. Epi<strong>de</strong>miol. Infect., 118, 51–61.3. CALLENS M. & DE CLERCQ K. (1999). Highly sensitive <strong>de</strong>tection of swine <strong>vesicu<strong>la</strong>r</strong> disease virus based on asingle tube RT-PCR system and DIG-ELISA <strong>de</strong>tection. J. Virol. Methods, 77, 87–99.4. DONALDSON A.I., FERRIS N.P., KNOWLES N.J. & BARNETT I.T.R. (1983). Com<strong>para</strong>tive studies of United Kingdomiso<strong>la</strong>tes of swine <strong>vesicu<strong>la</strong>r</strong> disease virus. Res. Vet. Sci., 35, 295–300.5. GOLDING S.M., HEDGER R.S., TALBOT P. & WATSON J. (1976). Radial immunodiffusion and serumneutralisation techniques for the assay of antibodies to swine <strong>vesicu<strong>la</strong>r</strong> disease. Res. Vet. Sci., 20, 142–147.6. KITCHING R.P. & DONALDSON A.I. (1987). Collection and transportation of specimens for <strong>vesicu<strong>la</strong>r</strong> virusinvestigation. Rev. sci. tech. Off. int. Epiz., 6, 263–272.7. LIN F., MACKAY D.K.J. & KNOWLES N.J. (1997). Detection of swine <strong>vesicu<strong>la</strong>r</strong> disease virus RNA by reversetranscription-polymerase chain reaction. J. Virol. Methods, 65, 111–121.8. LOXAM J.R. & HEDGER R.S. (1983). Swine <strong>vesicu<strong>la</strong>r</strong> disease: clinical signs, diagnosis, epi<strong>de</strong>miology andcontrol. Rec. sci. tech. Off. int. Epiz., 2, 11–24.9. MANN J.A. (1981). Swine <strong>vesicu<strong>la</strong>r</strong> disease. In: Virus Diseases of Farm Animals, Vol. 2, Gibbs E.P.J., ed.Aca<strong>de</strong>mic Press, London, UK, 365–381.10. NUNEZ J.I., BLANCO E., HERNANDEZ T., GOMEX-TEJEDOR C., MARTIN M.I., DOPAZO J. & SOBRINO F. (1998). A RT-PCR assay for the differential diagnosis of <strong>vesicu<strong>la</strong>r</strong> viral diseases of swine. J. Virol. Methods, 72, 227–235.11. VANGRYSPERRE W. & DE CLERCQ K. (1996). Rapid and sensitive polymerase chain reaction based on<strong>de</strong>tection and typing of foot-and-mouth disease virus in clinical samples and cell culture iso<strong>la</strong>tes, combinedwith a simultaneous differentiation with other genomically and/or symptomatically re<strong>la</strong>ted viruses. Arch.Virol., 141, 331–344.** *NB: Existen <strong>la</strong>boratorios <strong>de</strong> referencia <strong>de</strong> <strong>la</strong> OIE <strong>para</strong> <strong>la</strong> Enfermedad <strong>vesicu<strong>la</strong>r</strong> <strong>porcina</strong> (ver Cuadro en <strong>la</strong>parte 3 <strong>de</strong> este Manual <strong>de</strong> animales terrestres o consultar <strong>la</strong> página web <strong>de</strong> <strong>la</strong> OIE <strong>para</strong> una listaactualizada: www.oie.int)Manual <strong>de</strong> <strong>la</strong> OIE sobre animales terrestres 2004 155

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