Viruses: Guinea Pig Adenovirus (GPADV), Parainfluenza Virus 3 (PIV-3), Sendai Virus (SEV), and Guinea Pig CMV (GPCMV). Bacteria and Fungi: Bordetella Bronchiseptica (BBRO), Clostridium piliforme (CPILI), and Encephalitozoon cuniculi (ECUN).