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All BTV’s share group antigens, which can be demonstrated by agar gel diffusion tests, fluorescent antibody tests and the group
All BTV’s share group antigens, which can be demonstrated by agar gel diffusion tests, fluorescent antibody tests and the group
reactive ELISA<sup>1</sup>. There are 24 distinct serotypes, which are are distinguished by epitopes on the outer capsid protein VP2<sup>2</sup>, encoded by L2, the only serotype-specific BTV gene. Serotypes are differentiated using serum neutralisation tests, although there is some degree of cross-reactivity between serotypes<sup>1</sup>. Numerous strains of bluetongue virus also exist, and these are characterised by molecular analysis.
reactive ELISA<sup>1</sup>. There are 24 distinct serotypes, which are are distinguished by epitopes on the outer capsid protein VP2<sup>4</sup>, encoded by L2, the only serotype-specific BTV gene. Serotypes are differentiated using serum neutralisation tests, although there is some degree of cross-reactivity between serotypes<sup>1</sup>. Numerous strains of bluetongue virus also exist, and these are characterised by molecular analysis.
==Hosts==
==Hosts==