Epidemiology and Infection

Research Article

Isolations of African horse sickness virus from vector insects made during the 1988 epizootic in Spain

P. S. Mellora1 c1, J. Boneda2 p1, C. Hamblina1 and S. Grahama1

a1 Institute for Animal Health, Pirbright Laboratory, Ash Rd, Pirbright, Woking, Surrey GU24 0NF

a2 Junta de Andalucia, Consejeria de Agricultura y Pesca, Direccion General de Agricultura, Ganoderia y Montes, Laboratorio de Sanidad y Produccion Animal, Apartado de Correos 259, 14080 Cordoba, Spain.

Abstract

This paper describes the first isolations of African horse sickness virus (AHSV) from insects in Spain. Seven isolations of AHSV serotype 4 were made; four from Culicoides imicola a known vector of the virus elsewhere, two from mixed pools of Culicoides species not including C. imicola and one from blood engorged mosquitoes. Three further isolations of AHSV serotype 4 were also made from horses kept adjacent to the insect collecting sites.

This work presents the first definitive identification of the vectors of AHSV in Spain during the 1987, 88 and 89 epizootics. Suggestions are also made concerning the significance of these findings with regard to the epidemiology of African horse sickness in Spain.

(Accepted April 23 1990)

Correspondence:

c1 Dr P. S. Mellor, Institute for Animal Health, Pirbright Laboratory, Ash Road, Pirbright, Woking GU24 0NF.

p1 Present address: Apartado 77, 46980 Paterna, Spain.

Metrics