| helicobacter pylori | 246 | species | bacteria | bacteria | 210 |
| campylobacter sputorum | 22 | species | bacteria | bacteria | 206 |
| campylobacter rectus | 41 | species | bacteria | bacteria | 203 |
| campylobacter lari | 35 | species | bacteria | bacteria | 201 |
| campylobacter curvus | 11 | species | bacteria | bacteria | 200 |
| campylobacter concisus | 20 | species | bacteria | bacteria | 199 |
| campylobacter hyointestinalis | 23 | species | bacteria | bacteria | 198 |
| campylobacter jejuni | 130 | species | bacteria | bacteria | 197 |
| campylobacter fetus | 57 | species | bacteria | bacteria | 196 |
| campylobacter coli | 65 | species | bacteria | bacteria | 195 |
| leptospira borgpetersenii | 18 | species | bacteria | bacteria | 174 |
| leptospira interrogans | 49 | species | bacteria | bacteria | 173 |
| treponema pallidum | 87 | species | bacteria | bacteria | 160 |
| borrelia turicatae | 21 | species | bacteria | bacteria | 142 |
| borrelia parkeri | 13 | species | bacteria | bacteria | 141 |
| borrelia hermsii | 44 | species | bacteria | bacteria | 140 |
| borreliella burgdorferi | 144 | species | bacteria | bacteria | 139 |
| wanowrie virus | 1 | species | | viruses | |
| trichostrongylus skrjabini | -3 | species | | helminths | |
| trichostrongylus calcaratus | 2 | species | | helminths | |
| variant creutzfeldt-jakob disease agent | 31 | species | | | |
| brugia guyanensis | 2 | species | | helminths | |
| bertiella mucronata | 1 | species | | helminths | |
| treponema carateum | 1 | species | | bacteria | |
| trichobilharzia brevis | -3 | species | | helminths | |
| achillurbainia recondita | -3 | species | | helminths | |
| spirillum minus | 5 | species | | bacteria | |
| retortamonas intestinalis | 1 | species | | protozoa | |
| rhabditis inermis | -3 | species | | helminths | |
| plagiorchis philippinensis | -3 | species | | helminths | |
| penicillium dupontii | 1 | species | | fungi | |
| phoma cruris-hominis | -3 | species | | fungi | |
| sarcocystis lindemanni | -3 | species | | protozoa | |
| scytalidium infestans | -3 | species | | fungi | |
| sandfly fever virus group | -3 | species | | viruses | |
| pseudamphistomum aethiopicum | -3 | species | | helminths | |
| procerovum calderoni | 1 | species | | helminths | |
| phaeoanellomyces werneckii | -3 | species | | fungi | |
| physaloptera caucasica | -3 | species | | helminths | |
| paecilomyces fumerosoreus | -3 | species | | fungi | |
| nosema ocularum | 1 | species | | fungi | |
| microfilaria bolivarensis | 2 | species | | helminths | |
| zinga virus | 3 | species | | viruses | |
| achillurbainia nouveli | -3 | species | | helminths | |
| syphacea obvelata | -3 | species | | helminths | |
| rictularia | 5 | genus | | | |
| poikilorchis congolensis | 1 | species | | helminths | |
| prosthodendrium molenkampi | 5 | species | | helminths | |
| philophthalmus lacrymosus | -3 | species | | helminths | |
| phoma oculo-hominis | 1 | species | | fungi | |
| enterobius gregorii | 4 | species | | helminths | |
| amphimerus pseudofelineus | 3 | species | | helminths | |
| bovine spongiform encephalopathy agent | 101 | species | | | |
| dirofilaria tenuis | 11 | species | | helminths | |
| echinostoma echinatum | 2 | species | | helminths | |
| diphyllobothrium houghtoni | -3 | species | | helminths | |
| diphyllobothrium scoticum | -3 | species | | helminths | |
| diplogonoporus brauni | -3 | species | | helminths | |
| cylindrocarpon cyanescens | 1 | species | | fungi | |
| cheilospirura | 5 | genus | | | |
| cathaemasia cabrerai | -3 | species | | helminths | |
| chaetomium perpulchrum | 1 | species | | fungi | |
| volutella cinerescens | -3 | species | | fungi | |
| aspergillus flavus group | 19 | species | | fungi | |
| rhabditis niellyi | -3 | species | | helminths | |
| plagiorchis harinasutai | 1 | species | | helminths | |
| trichostrongylus affinis | 2 | species | | helminths | |
| trichostrongylus instabilis | -3 | species | | helminths | |
| stictodora fuscata | 1 | species | | helminths | |
| raillietina celebensis | 2 | species | | helminths | |
| prohemistomum vivax | 1 | species | | helminths | |
| paragonimus uterobilateralis | 8 | species | | helminths | |
| phaneropsolus bonnei | 5 | species | | helminths | |
| opisthorchis guayaquilensis | -3 | species | | helminths | |
| haplorchis vanissima | -3 | species | | helminths | |
| artyfechinostomum mehrai | 2 | species | | helminths | |
| anatrichosoma cutaneum | 1 | species | | helminths | |
| bangui virus | 1 | species | | viruses | |
| aspergillus nidulans group | 10 | species | | fungi | |
| aspergillus fumigatus group | 4 | species | | fungi | |
| brugia beaveri | 2 | species | | helminths | |
| dirofilaria striata | 4 | species | | helminths | |
| dichotomophthoropsis nymphaerum | -3 | species | | fungi | |
| wuchereria lewisi | 1 | species | | helminths | |
| trichostrongylus lerouxi | 1 | species | | helminths | |
| thelazia californiensis | 6 | species | | helminths | |
| trichomaris invadens | 4 | species | | fungi | |
| ovadendron ochraceum | -3 | species | | fungi | |
| nosema africanum | -3 | species | | fungi | |
| himasthla muehlensi | -3 | species | | helminths | |
| inermicapsifer madagascariensis | 8 | species | | helminths | |
| acremonium recifei | 4 | species | | fungi | |
| acanthocephalus rauschi | -3 | species | | helminths | |
| far eastern tick-borne encephalitis virus | 1 | no rank | | viruses | |
| alternaria stemphyloides | -3 | species | | fungi | |
| acremonium roseogriseum | -3 | species | | fungi | |
| aspergillus fisherianus | -3 | species | | fungi | |
| ancylostoma malayanum | 1 | species | | helminths | |
| aspergillus terreus group | -3 | species | | fungi | |
| diphyllobothrium mansonoides | -3 | species | | helminths | |