Division (b)
United Kingdom
"singleton reactors" means any pig which yields a positive result in serological tests for classical swine fever but which has no history of contact with classical swine fever virus and from which there is no evidence of spread of infection to in-contact pigs f1 ;
Annotations
Footnotes
- f1
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Singleton reactors may have titres of virus neutralising antibodies ranging from borderline (which is more often the case) to strongly positive. On re-sampling, singleton reactors may show a decreasing or constant titre. In general only few pigs in a herd give rise to these false/positive reactions.