See the following information on biological agents.

Bacteria

• Actinomyces species
• Bacteroides species
• Bacteroides thetaiotamicron
• Bifidobacterium species
• Blautia species
• Cadidatus arthromitus 
• Citrobacter rodentium
• Clostridioides difficile
• Clostridium species
• Cutibacterium acnes
• Enterococcus faecalis
• Enterococcus faecium
• Enterococcus species
• Escherichia coli, Nissle 1917
• Escherichia coli, non-pathogenic strains
• Eubacterium species
• Faecalibacterium species
• Helicobacter polygyrus
• Klebsiella pneumoniae
• Lactobacillus reuteri
• Listeria monocytogenes
• Parabacteroides species
• Prevotella species
• Pseudomonas aeruginosa
• Ruminococcus species
• Salmonella typhimurium
• Segmented Filamentous Bacteria (SFB)
• Staphylococcus aureus
• Staphylococcus cohnii
• Staphylococcus epidermidis
• Staphylococcus lentus
• Staphylococcus saprophyticus
• Staphylococcus xylosus
• Streptococcus species
• Yersinia pseudotuberculosis

Fungi

• Candida albicans

Parasites

• Nippostrongylus brasiliensis
• Plasmodium species
• Trichuris muris

Viruses

• Adeno-Associated Virus
• Adenovirus
• Canine adenovirus 2
• Coxsackievirus B
• Dengue Virus
• Glycoprotein-deleted recombinant Rabies virus
• Hepatitis A Virus
• Hepatitis B Virus
• Hepatitis C Virus
• Hepatitis Delta Virus
• Hepatitis E Virus
• Herpes Simplex Virus-1
• Human Immunodeficiency Virus
• Influenza Virus A (H1N1), strain A/PR/8/34
• Langat Virus
• Lentivirus
• Lymphocytic Choriomeningitis Virus
• Moloney Murine Leukemia Virus
• Murine Norovirus
• Murine Stem Cell Virus
• Pseudorabies Virus, Bartha strain
• Pseudotyped Rabies Virus
• Reovirus
• Respiratory Syncytial Virus
• St. Louis Encephalitis Virus
• Usutu Virus
• West Nile Virus
• Woodchuck Hepatitis B Virus
• Woolly Monkey Hepatitis B Virus
• Yellow Fever Virus 17D Strain
• Zika Virus

Other

• House Dust Mite
• LNP-mRNA
• Vampire Bats