2002/270/EC: Commission Decision of 9 April 2002 amending Decisions 93/24/EEC, 93/244/EEC and 2001/618/EC as regards the list of Member States and regions free of Aujeszky's disease and regions where approved Aujeszky's disease eradication programmes are in place (Text with EEA relevance) (notified under document number C(2002) 1326)