Viruses: Toolan’s H-1 Parvovirus (H-1), Kilham Rat Virus (KRV), Rat Minute Virus (RMV), Rat Parvovirus (RPV), Rat Coronavirus (SDAV/RCV), at Theilovirus (RTV), Pneumonia Virus of Mice (PVM), Mouse AdeNovirus-1 (MAV-FL, MAV-1), Mouse AdeNovirus-2 (MAV-K87, MAV-2), Respiratory Enteric Virus III (REO), Sendai Virus (SEV), and Hantaan Virus (HANT). Bacteria and Fungi: Pneumocystis carinii (PCAR), Cilia-Associated Respiratory Bacillus (CARB), Clostridium Piliforme (CPILI), Mycoplasma Pulmonis (MPUL), Helicobacter (HELICO), Pasteurella Pneumotropica (PASTP), Streptococcis B Hemolytic Group A (STREPA), Streptococcis B Hemolytic Group B (STREPB), Streptococcis B Hemolytic Group C (STREPC), Streptococcis B Hemolytic Group G (STREPG), Streptococcus pneumoniae (SPNE), Salmonella spp. (SALM), and Streptobacillus Moniliforme (SMONI). Parasites: Fur mites (FUR), Giardia (GIAR), Spironucleus spp. (SPIR), Cryptosporidium (CRYP), Pinworm (PIN), and Entomoeba spp. (ENT).