| concinnum procyonis | -3 | species | | helminths | |
| cooperia bisonis | 2 | species | | helminths | |
| cordylobia rodhaini | 4 | species | | fly | |
| cotugnia fastigata | -3 | species | | helminths | |
| caryophyllaeus fimbriceps | -3 | species | | helminths | |
| cheyletiella yasguri | 9 | species | | | |
| amidostomum anseris | 3 | species | | helminths | |
| babesia foliata | -3 | species | | protozoa | |
| calliphora australis | -3 | species | | fly | |
| caparinia tripilis | 1 | species | | | |
| capillaria obsignata | 7 | species | | helminths | |
| theileria lawrenci | -3 | species | | protozoa | |
| achillurbainia nouveli | -3 | species | | helminths | |
| alaria arisaemoides | 2 | species | | helminths | |
| stephanofilaria dedoesi | -3 | species | | helminths | |
| stephanofilaria stilesi | 2 | species | | helminths | |
| syphacea obvelata | -3 | species | | helminths | |
| sarcoptes scabiei type bovis | -3 | species | | | |
| simulium pecuarum | -3 | species | | fly | |
| rictularia | 5 | genus | | | |
| psoroptes caprae | -3 | species | | | |
| pterygocrusolichus chanayi | -3 | species | | | |
| plistophora salmonae | -3 | species | | fungi | |
| poikilorchis congolensis | 1 | species | | helminths | |
| posthodiplostomum cuticula | 1 | species | | helminths | |
| prosarcoptes faini | -3 | species | | | |
| prosthodendrium molenkampi | 5 | species | | helminths | |
| oxyuris tenuicorda | -3 | species | | helminths | |
| parastrigea robusta | -3 | species | | helminths | |
| pedicinus eurygaster | 1 | species | | | |
| philophthalmus lacrymosus | -3 | species | | helminths | |
| phoma oculo-hominis | 1 | species | | fungi | |
| enterobius gregorii | 4 | species | | helminths | |
| enterocytozoon intestinalis | -3 | species | | fungi | |
| ostertagia bisonis | 5 | species | | helminths | |
| oxyuris karamoja | 1 | species | | helminths | |
| eimeria neoleporis | 1 | species | | protozoa | |
| eimeria hagani | -3 | species | | protozoa | |
| alaria michiganensis | -3 | species | | helminths | |
| acanthocephalus jacksoni | 5 | species | | helminths | |
| eimeria bukidnonensis | 4 | species | | protozoa | |
| armillifer moliniformis | -3 | species | | | |
| amphimerus pseudofelineus | 3 | species | | helminths | |
| avitellina tatia | -3 | species | | helminths | |
| ascaris columnaris | 1 | species | | helminths | |
| capillaria entomelas | -3 | species | | helminths | |
| bovine spongiform encephalopathy agent | 101 | species | | | |
| booponus intonsus | -3 | species | | fly | |
| dirofilaria tenuis | 11 | species | | helminths | |
| echinostoma echinatum | 2 | species | | helminths | |
| echinostoma lindoensis | -3 | species | | helminths | |
| diorchitrema amplicaecale | -3 | species | | helminths | |
| diorchitrema pseudocirratum | -3 | species | | helminths | |
| diphyllobothrium houghtoni | -3 | species | | helminths | |
| diphyllobothrium scoticum | -3 | species | | helminths | |
| diplogonoporus brauni | -3 | species | | helminths | |
| cytauxzoon taurotragi | 1 | species | | protozoa | |
| demodex aurati | 3 | species | | | |
| demodex cervi | -3 | species | | | |
| demodex ratti | 1 | species | | | |
| dicrocoelium lanceolatum | 5 | species | | helminths | |
| cooperia spatulata | 4 | species | | helminths | |
| cotylurus platycephalus | 1 | species | | helminths | |
| cuterebra buccata | 2 | species | | fly | |
| cylindrocarpon cyanescens | 1 | species | | fungi | |
| cytauxzoon strepsicerosi | -3 | species | | protozoa | |
| cheilospirura | 5 | genus | | | |
| cheyletiella furmani | -3 | species | | | |
| cheyletiella parasitivorax | 9 | species | | | |
| chrysomya micropogon | -3 | species | | fly | |
| cnemidocoptes mutans | 1 | species | | | |
| wohlfahrtia meigeni | 1 | species | | fly | |
| cathaemasia cabrerai | -3 | species | | helminths | |
| central european tickborne encephalitis virus | 2 | no rank | | viruses | |
| chaetomium perpulchrum | 1 | species | | fungi | |
| trombicula alfreddugesi | 1 | species | | | |
| volutella cinerescens | -3 | species | | fungi | |
| cittotaenia ctenoides | -3 | species | | helminths | |
| candida paratropicalis | 4 | species | | fungi | |
| aspergillus flavus group | 19 | species | | fungi | |
| babesia trautmanni | 2 | species | invertebrates | protozoa | |
| ambiphyra | -3 | genus | | | |
| theileria camelensis | -3 | species | | protozoa | |
| tracheophilus cymbius | -3 | species | | helminths | |
| syngamus skrjabinomorpha | 1 | species | | helminths | |
| synhimantus spiralis | -3 | species | | helminths | |
| syringophilus columbae | 1 | species | | | |
| streptopharagus armatus | -3 | species | | helminths | |
| radfordia affinis | 3 | species | | | |
| raillietina echinobothridia | 1 | species | | helminths | |
| rhabditis niellyi | -3 | species | | helminths | |
| protostrongylus davtiani | -3 | species | | helminths | |
| protostrongylus tauricus | 1 | species | | helminths | |
| psoroptes equi | 2 | species | | | |
| pteronyssus striatus | -3 | species | | | |
| plagiorchis harinasutai | 1 | species | | helminths | |
| plagiorchis megalorchis | -3 | species | | helminths | |
| plasmodium durae | 3 | species | | protozoa | |
| postharmostomum commutatus | -3 | species | | helminths | |
| postharmostomum suis | -3 | species | | helminths | |