"singleton reactor" means any single seropositive pig in a holding which yields a positive result in serological tests for swine vesicular disease, but which has no history of contact with swine vesicular disease virus and from which there is no evidence of spread of infection to in-contact pigs.
"posamezni reaktor" je katerikoli serološko pozitiven prašič, ki je kot edini na tistem gospodarstvu pozitivno reagiral pri serološkem testu na vezikularno bolezen prašičev, vendar v preteklosti ni prišel v stik z virusom vezikularne bolezni prašičev in ni dokazov, da bi širil okužbo na prašiče, s katerimi je v stiku.