| candidatus mycoplasma haemominutum | No | species | bacteria | bacteria | species | 209446 | click here |
| carnivore protoparvovirus 1 | No | species | | | species | 1511906 | click here |
| feline immunodeficiency virus | No | species | viruses and viroids | viruses | species | 11673 | click here |
| feline leukemia virus | No | species | viruses and viroids | viruses | species | 11768 | click here |
| feline morbillivirus | No | species | | | species | 1170234 | click here |