| classical swine fever in wild boar in the lombardy region of italy from 1997 to 2002. | in 1997, outbreaks of classical swine fever occurred in wild boar and domestic pigs in the italian province of varese (lombardy region). statutory animal health measures were imposed, and a control plan aimed at preventing the virus from spreading outside the infected hunting zone of 108 km2 was implemented. however, in 1998, virologically positive wild boar were found outside this zone, including within swiss territory. the infected zone was then enlarged to include the three other hunting area ... | 2003 | 12723629 |