| listeria ivanovii | 32 | species | bacteria | bacteria | 1638 |
| soybean mosaic virus | 32 | species | viruses | viruses | 12222 |
| zucchini yellow mosaic virus | 32 | species | viruses | viruses | 12232 |
| barley stripe mosaic virus | 32 | species | viruses | viruses | 12327 |
| peste-des-petits-ruminants virus | 32 | species | viruses | viruses | 31604 |
| phakopsora pachyrhizi | 32 | species | plants | fungi | 170000 |
| cystoisospora belli | 32 | species | invertebrates | protozoa | 482538 |
| naegleria fowleri | 33 | species | invertebrates | protozoa | 5763 |
| rotavirus c | 33 | species | viruses | viruses | 36427 |
| mycobacterium xenopi | 34 | species | bacteria | bacteria | 1789 |
| human parainfluenza virus 1 | 34 | species | viruses | viruses | 12730 |
| pneumocystis jirovecii | 34 | species | plants | fungi | 42068 |
| pseudomonas savastanoi pv. glycinea | 35 | no rank | bacteria | bacteria | 318 |
| alexandrium tamarense | 35 | species | plants | protozoa | 2926 |
| angiostrongylus cantonensis | 35 | species | invertebrates | helminths | 6313 |
| monkeypox virus | 35 | species | viruses | viruses | 10244 |
| streptococcus viridans | 35 | species | bacteria | bacteria | 78535 |
| bartonella bacilliformis | 36 | species | bacteria | bacteria | 774 |
| rickettsia typhi | 36 | species | bacteria | bacteria | 785 |
| staphylococcus haemolyticus | 36 | species | bacteria | bacteria | 1283 |
| molluscum contagiosum virus | 36 | species | viruses | viruses | 10279 |
| coxsackievirus a9 | 36 | no rank | viruses | viruses | 12067 |
| edwardsiella tarda | 37 | species | bacteria | bacteria | 636 |
| staphylococcus intermedius | 37 | species | bacteria | bacteria | 1285 |
| rabbit hemorrhagic disease virus | 37 | species | viruses | viruses | 11976 |
| mycoplasma mycoides | 38 | species | bacteria | bacteria | 2102 |
| st. louis encephalitis virus | 38 | species | viruses | viruses | 11080 |
| brucella suis | 38 | species | bacteria | bacteria | 29461 |
| mycobacterium abscessus | 38 | species | bacteria | bacteria | 36809 |
| human coronavirus 229e | 39 | species | viruses | viruses | 11137 |
| rinderpest virus | 39 | species | viruses | viruses | 11241 |
| streptococcus milleri | 39 | species | bacteria | bacteria | 33040 |
| chikungunya virus | 39 | species | viruses | viruses | 37124 |
| rickettsia conorii | 40 | species | bacteria | bacteria | 781 |
| orientia tsutsugamushi | 40 | species | bacteria | bacteria | 784 |
| fusobacterium necrophorum | 40 | species | bacteria | bacteria | 859 |
| acanthamoeba polyphaga | 40 | species | invertebrates | protozoa | 5757 |
| la crosse virus | 40 | no rank | viruses | viruses | 11577 |
| sporothrix schenckii | 40 | species | plants | fungi | 29908 |
| providencia stuartii | 41 | species | bacteria | bacteria | 588 |
| streptococcus uberis | 41 | species | bacteria | bacteria | 1349 |
| rift valley fever virus | 41 | species | viruses | viruses | 11588 |
| lassa mammarenavirus | 41 | species | viruses | viruses | 11620 |
| blastocystis hominis | 41 | species | plants | | 12968 |
| trypanosoma brucei gambiense | 41 | subspecies | invertebrates | protozoa | 31285 |
| gymnodinium catenatum | 41 | species | plants | protozoa | 39447 |
| wheat dwarf virus | 42 | species | viruses | viruses | 10834 |
| staphylococcus saprophyticus | 42 | species | bacteria | bacteria | 29385 |
| ehrlichia ruminantium | 43 | species | bacteria | bacteria | 779 |
| mycoplasma capricolum | 43 | species | bacteria | bacteria | 2095 |
| encephalitozoon hellem | 43 | species | plants | fungi | 27973 |
| encephalitozoon intestinalis | 43 | species | plants | fungi | 58839 |
| hendra virus | 43 | species | viruses | viruses | 63330 |
| borrelia hermsii | 44 | species | bacteria | bacteria | 140 |
| elizabethkingia meningoseptica | 44 | species | bacteria | bacteria | 238 |
| ralstonia pickettii | 44 | species | bacteria | bacteria | 329 |
| trypanosoma brucei rhodesiense | 45 | subspecies | invertebrates | protozoa | 31286 |
| morganella morganii | 46 | species | bacteria | bacteria | 582 |
| mycobacterium ulcerans | 46 | species | bacteria | bacteria | 1809 |
| xylella fastidiosa | 46 | species | bacteria | bacteria | 2371 |
| leishmania chagasi | 46 | species | invertebrates | protozoa | 44271 |
| eikenella corrodens | 47 | species | bacteria | bacteria | 539 |
| bacteroides thetaiotaomicron | 47 | species | bacteria | bacteria | 818 |
| barley yellow dwarf virus | 47 | species | viruses | viruses | 12037 |
| ectromelia virus | 47 | species | viruses | viruses | 12643 |
| enterovirus a71 | 47 | no rank | viruses | viruses | 39054 |
| strongyloides stercoralis | 48 | species | invertebrates | helminths | 6248 |
| human herpesvirus 7 | 48 | species | viruses | viruses | 10372 |
| african swine fever virus | 48 | species | viruses | viruses | 10497 |
| ross river virus | 48 | species | viruses | viruses | 11029 |
| influenza c virus | 48 | species | viruses | viruses | 11552 |
| tomato spotted wilt virus | 48 | species | viruses | viruses | 11613 |
| xanthomonas oryzae pv. oryzae | 48 | no rank | bacteria | bacteria | 64187 |
| leptospira interrogans | 49 | species | bacteria | bacteria | 173 |
| actinomyces naeslundii | 49 | species | bacteria | bacteria | 1655 |
| mycobacterium kansasii | 49 | species | bacteria | bacteria | 1768 |
| leishmania tropica | 49 | species | invertebrates | protozoa | 5666 |
| ehrlichia canis | 50 | species | bacteria | bacteria | 944 |
| streptococcus suis | 50 | species | bacteria | bacteria | 1307 |
| blastomyces dermatitidis | 50 | species | plants | fungi | 5039 |
| rhodococcus equi | 50 | species | bacteria | bacteria | 43767 |
| nectria haematococca | 50 | species | plants | fungi | 140110 |
| rickettsia prowazekii | 51 | species | bacteria | bacteria | 782 |
| mycobacterium marinum | 51 | species | bacteria | bacteria | 1781 |
| nocardia asteroides | 51 | species | bacteria | bacteria | 1824 |
| human parainfluenza virus 3 | 51 | species | viruses | viruses | 11216 |
| nipah virus | 51 | species | viruses | viruses | 121791 |
| streptococcus equinus | 52 | species | bacteria | bacteria | 1335 |
| leishmania braziliensis | 52 | species | invertebrates | protozoa | 5660 |
| potato virus y | 52 | species | viruses | viruses | 12216 |
| brucella melitensis | 52 | species | bacteria | bacteria | 29459 |
| proteus vulgaris | 53 | species | bacteria | bacteria | 585 |
| shigella sonnei | 53 | species | bacteria | bacteria | 624 |
| rickettsia rickettsii | 53 | species | bacteria | bacteria | 783 |
| giardia intestinalis | 53 | species | invertebrates | protozoa | 5741 |
| babesia microti | 53 | species | invertebrates | protozoa | 5868 |
| bartonella quintana | 54 | species | bacteria | bacteria | 803 |
| coccidioides immitis | 54 | species | plants | fungi | 5501 |
| venezuelan equine encephalitis virus | 54 | species | viruses | viruses | 11036 |
| enterocytozoon bieneusi | 54 | species | plants | fungi | 31281 |