| encephalitozoon cuniculi | 58 | species | plants | fungi | 6035 |
| rotavirus a | 58 | species | viruses | viruses | 28875 |
| actinobacillus pleuropneumoniae | 59 | species | bacteria | bacteria | 715 |
| myxoma virus | 59 | species | viruses | viruses | 10273 |
| lelystad virus | 59 | no rank | viruses | viruses | 11049 |
| feline calicivirus | 59 | species | viruses | viruses | 11978 |
| equid herpesvirus 1 | 60 | species | viruses | viruses | 10326 |
| infectious bursal disease virus | 60 | species | viruses | viruses | 10995 |
| transmissible gastroenteritis virus | 60 | no rank | viruses | viruses | 11149 |
| canine distemper virus | 60 | species | viruses | viruses | 11232 |
| chicken anemia virus | 60 | species | viruses | viruses | 12618 |
| echinococcus granulosus | 61 | species | invertebrates | helminths | 6210 |
| equine arteritis virus | 61 | species | viruses | viruses | 11047 |
| visna/maedi virus | 61 | species | viruses | viruses | 11741 |
| anaplasma phagocytophilum | 62 | species | bacteria | bacteria | 948 |
| streptococcus agalactiae | 62 | species | bacteria | bacteria | 1311 |
| equine infectious anemia virus | 62 | species | viruses | viruses | 11665 |
| enterococcus hirae | 63 | species | bacteria | bacteria | 1354 |
| gallid herpesvirus 2 | 63 | species | viruses | viruses | 10390 |
| chlamydia psittaci | 63 | species | bacteria | bacteria | 83554 |
| chlamydia abortus | 63 | species | bacteria | bacteria | 83555 |
| bluetongue virus | 64 | species | viruses | viruses | 40051 |
| campylobacter coli | 65 | species | bacteria | bacteria | 195 |
| pasteurella multocida | 65 | species | bacteria | bacteria | 747 |
| ascaris suum | 65 | species | invertebrates | helminths | 6253 |
| canine parvovirus | 65 | no rank | viruses | viruses | 10788 |
| parainfluenza virus 5 | 65 | no rank | viruses | viruses | 2905673 |
| bovine leukemia virus | 65 | species | viruses | viruses | 11901 |
| borna disease virus | 65 | species | viruses | viruses | 12455 |
| porcine reproductive and respiratory syndrome virus | 65 | species | viruses | viruses | 28344 |
| porcine circovirus | 65 | species | viruses | viruses | 46221 |
| klebsiella oxytoca | 66 | species | bacteria | bacteria | 571 |
| infectious bronchitis virus | 66 | no rank | viruses | viruses | 11120 |
| coxiella burnetii | 67 | species | bacteria | bacteria | 777 |
| mannheimia haemolytica | 67 | species | bacteria | bacteria | 75985 |
| fasciola hepatica | 68 | species | invertebrates | helminths | 6192 |
| reticuloendotheliosis virus | 68 | species | viruses | viruses | 11636 |
| feline leukemia virus | 69 | species | viruses | viruses | 11768 |
| citrobacter freundii | 70 | species | bacteria | bacteria | 546 |
| bovine herpesvirus 1 | 70 | species | viruses | viruses | 10320 |
| cowpox virus | 71 | species | viruses | viruses | 10243 |
| neospora caninum | 72 | species | invertebrates | protozoa | 29176 |
| francisella tularensis | 74 | species | bacteria | bacteria | 263 |
| haemonchus contortus | 74 | species | invertebrates | helminths | 6289 |
| [enterobacter] aerogenes | 75 | species | bacteria | bacteria | 548 |
| brucella abortus | 76 | species | bacteria | bacteria | 235 |
| pseudomonas stutzeri | 76 | species | bacteria | bacteria | 316 |
| candida tropicalis | 76 | species | plants | fungi | 5482 |
| sars coronavirus | 76 | no rank | viruses | viruses | 227859 |
| bartonella henselae | 77 | species | bacteria | bacteria | 38323 |
| salmonella enterica subsp. enterica serovar typhimurium | 77 | no rank | bacteria | bacteria | 90371 |
| bacillus licheniformis | 78 | species | bacteria | bacteria | 1402 |
| mycoplasma genitalium | 78 | species | bacteria | bacteria | 2097 |
| trichinella spiralis | 78 | species | invertebrates | helminths | 6334 |
| mycobacterium avium subsp. paratuberculosis | 79 | subspecies | bacteria | bacteria | 1770 |
| scrapie agent | 79 | species | | | |
| proteus mirabilis | 80 | species | bacteria | bacteria | 584 |
| shigella dysenteriae | 80 | species | bacteria | bacteria | 622 |
| bovine viral diarrhea virus 1 | 80 | species | viruses | viruses | 11099 |
| feline immunodeficiency virus | 80 | species | viruses | viruses | 11673 |
| stenotrophomonas maltophilia | 80 | species | bacteria | bacteria | 40324 |
| human parvovirus b19 | 81 | species | viruses | viruses | 10798 |
| classical swine fever virus | 84 | species | viruses | viruses | 11096 |
| rhizopus oryzae | 86 | species | plants | fungi | 64495 |
| treponema pallidum | 87 | species | bacteria | bacteria | 160 |
| moraxella catarrhalis | 87 | species | bacteria | bacteria | 480 |
| [candida] glabrata | 87 | species | plants | fungi | 5478 |
| trichomonas vaginalis | 87 | species | invertebrates | protozoa | 5722 |
| salmonella enterica subsp. enterica serovar enteritidis | 87 | no rank | bacteria | bacteria | 149539 |
| acinetobacter baumannii | 88 | species | bacteria | bacteria | 470 |
| aeromonas hydrophila | 89 | species | bacteria | bacteria | 644 |
| foot-and-mouth disease virus | 89 | species | viruses | viruses | 12110 |
| enterobacter cloacae | 90 | species | bacteria | bacteria | 550 |
| cryptosporidium parvum | 92 | species | invertebrates | protozoa | 5807 |
| mycoplasma pneumoniae | 93 | species | bacteria | bacteria | 2104 |
| fusarium oxysporum | 93 | species | plants | fungi | 5507 |
| newcastle disease virus | 93 | species | viruses | viruses | 11176 |
| human herpesvirus 6 | 94 | species | viruses | viruses | 10368 |
| bovine papillomavirus | 95 | species | viruses | viruses | 10571 |
| hepatovirus a | 95 | species | viruses | viruses | 12092 |
| mycobacterium avium complex | 95 | species | bacteria | bacteria | 37162 |
| human herpesvirus 2 | 96 | species | viruses | viruses | 10310 |
| rabies virus | 96 | species | viruses | viruses | 11292 |
| bacteroides fragilis | 97 | species | bacteria | bacteria | 817 |
| west nile virus | 97 | species | viruses | viruses | 11082 |
| fusarium verticillioides | 97 | species | plants | fungi | 117187 |
| leishmania donovani | 98 | species | invertebrates | protozoa | 5661 |
| entamoeba histolytica | 98 | species | invertebrates | protozoa | 5759 |
| yersinia pseudotuberculosis | 99 | species | bacteria | bacteria | 633 |
| serratia marcescens | 100 | species | bacteria | bacteria | 615 |
| aggregatibacter actinomycetemcomitans | 101 | species | bacteria | bacteria | 714 |
| clostridium perfringens | 101 | species | bacteria | bacteria | 1502 |
| bovine spongiform encephalopathy agent | 101 | species | | | |
| streptococcus mutans | 104 | species | bacteria | bacteria | 1309 |
| yersinia pestis | 105 | species | bacteria | bacteria | 632 |
| encephalomyocarditis virus | 105 | no rank | viruses | viruses | 12104 |
| clostridium botulinum | 106 | species | bacteria | bacteria | 1491 |
| suid herpesvirus 1 | 106 | species | viruses | viruses | 10345 |
| burkholderia cepacia | 107 | species | bacteria | bacteria | 292 |
| salmonella enterica | 107 | species | bacteria | bacteria | 28901 |