In regions not recognised as free from swine vesicular disease, a pig holding shall be recognised as free from that disease if on two occasions at an interval of 28 to 40 days, sampling for serological testing has been carried out on a number of pigs sufficient to detect prevalence of swine vesicular disease of 5 % with a confidence interval of 95 % and the results were negative;
Piirkondades, mida ei ole sigade vesikulaarhaigusest vabaks tunnistatud, tunnistatakse seakasvatusettevõte kõnealusest haigusest vabaks juhul, kui seroloogiliste testide jaoks on võetud kahel korral intervalliga 28–40 päeva proove sigade selliselt hulgalt, mis on piisav sigade vesikulaarhaiguse 5 % levimuse avastamiseks 95 % usaldusvahemikuga, ja tulemused on olnud negatiivsed.