-lrb- bratislava sme in slovak 18 jan 94 p 14 au -rrb- measures to control swine fever : the district anti-epidemiologic commission in prievidza , central slovakia , adopted special measures against the spread of swine fever on 18 january , after the disease was discovered in the tissue of a boar shot in the area on january 9 . district veterinarian jaroslav hatapka told journalists that two protective belts had been set up within a 15-km and 25-km radius from where the disease was found .