Malignant Catarrhal Fever: See Bovine Herpesvirus (Malignant Catarrhal fever) (dsDNA, Herpesviridae, GammaherpesvirinaeMacavirus, species Alcelaphine gammaherpesvirus 1 (AIHV-1) and Ovine gammaherpesvirus 2 (OHV-2): Molecular diagnosis (PCR).