Viruses: Mouse Hepatitis Virus (MHV), Mouse Minute Virus (MMV), Mouse Parvovirus (MPV), Murine Norovirus (MNV), Rotavirus/Epizootic Diarrhea of Infant Mice (EDIM), Theiler’s Mouse Encephalomyelitis Virus (TMEV/GDVII), Lymphocytic Choriomeningitis Virus (LCMV), Mouse Adenovirus-1 (MAV-FL), Mouse Adenovirus-2 (MAV-K87), Pneumonia Virus of Mice (PVM), Respiratory Enteric Virus III (REO), and Sendai Virus (SEV). Bacteria and Fungi: Mycoplasma pulmonis, (MPUL), Clostridium piliforme (CPILI), Helicobacter (HELICO), Rodentibacter pneumotropica (RPNEU), Streptococcus B Hemolytic Group A (STRGA), Streptococcus B Hemolytic Group B (STRGB), Streptococcus B Hemolytic Group C (STRGC), Streptococcus B Hemolytic Group G (STRGG), Streptococcus pneumoniae (SPNE), Citrobacter rodentium (CROD), Corynebacterium kutscheri (CKUT), Salmonella spp. (SALM), and Streptobacillus moniliformis (SMONI). Parasites: Fur mites (FUR), Giardia muris (GMUR), Spironucleus muris (SMUR), Cryptosporidium spp. (CRYP), Pinworm (PIN), and ntamoeba muris (EMUR).