Annex III: Standards for Aujeszky’s disease serological tests — Protocol for the enzyme linked immunosorbent assay (ELISA) for detecting antibodies to Aujeszky’s disease virus (whole virus), to glycoprotein B (ADV-gB), to glycoprotein D (ADV-gD) or to glycoprotein E (ADV-gE) - Commission Decision of 21 February 2008 on additional guarantees in intra-Community trade of pigs relating to Aujeszky’s disease and criteria to provide information on this disease (notified under document number C(2008) 669) (Codified version) (Text with EEA relevance) (2008/185/EC)