| cowpox virus | 71 | species | viruses | viruses | 10243 |
| myxoma virus | 59 | species | viruses | viruses | 10273 |
| human herpesvirus 1 | 171 | species | viruses | viruses | 10298 |
| human herpesvirus 2 | 96 | species | viruses | viruses | 10310 |
| bovine herpesvirus 1 | 70 | species | viruses | viruses | 10320 |
| equid herpesvirus 1 | 60 | species | viruses | viruses | 10326 |
| human herpesvirus 3 | 113 | species | viruses | viruses | 10335 |
| suid herpesvirus 1 | 106 | species | viruses | viruses | 10345 |
| human herpesvirus 5 | 159 | species | viruses | viruses | 10359 |
| human herpesvirus 6 | 94 | species | viruses | viruses | 10368 |
| human herpesvirus 4 | 257 | species | viruses | viruses | 10376 |
| gallid herpesvirus 2 | 63 | species | viruses | viruses | 10390 |
| hepatitis b virus | 246 | species | viruses | viruses | 10407 |
| human papillomavirus | 235 | species | viruses | viruses | 10566 |
| bovine papillomavirus | 95 | species | viruses | viruses | 10571 |
| canine parvovirus | 65 | no rank | viruses | viruses | 10788 |
| human parvovirus b19 | 81 | species | viruses | viruses | 10798 |
| infectious bursal disease virus | 60 | species | viruses | viruses | 10995 |
| equine arteritis virus | 61 | species | viruses | viruses | 11047 |
| lelystad virus | 59 | no rank | viruses | viruses | 11049 |
| west nile virus | 97 | species | viruses | viruses | 11082 |
| classical swine fever virus | 84 | species | viruses | viruses | 11096 |
| bovine viral diarrhea virus 1 | 80 | species | viruses | viruses | 11099 |
| hepatitis c virus | 289 | species | viruses | viruses | 11103 |
| infectious bronchitis virus | 66 | no rank | viruses | viruses | 11120 |
| transmissible gastroenteritis virus | 60 | no rank | viruses | viruses | 11149 |
| newcastle disease virus | 93 | species | viruses | viruses | 11176 |
| parainfluenza virus 5 | 65 | no rank | viruses | viruses | 2905673 |
| canine distemper virus | 60 | species | viruses | viruses | 11232 |
| measles virus | 119 | species | viruses | viruses | 11234 |
| rabies virus | 96 | species | viruses | viruses | 11292 |
| influenza a virus | 135 | species | viruses | viruses | 11320 |
| lymphocytic choriomeningitis mammarenavirus | 148 | species | viruses | viruses | 11623 |
| reticuloendotheliosis virus | 68 | species | viruses | viruses | 11636 |
| equine infectious anemia virus | 62 | species | viruses | viruses | 11665 |
| feline immunodeficiency virus | 80 | species | viruses | viruses | 11673 |
| human immunodeficiency virus 1 | 410 | species | viruses | viruses | 11676 |
| human immunodeficiency virus 2 | 399 | species | viruses | viruses | 11709 |
| visna/maedi virus | 61 | species | viruses | viruses | 11741 |
| mouse mammary tumor virus | 125 | species | viruses | viruses | 11757 |
| feline leukemia virus | 69 | species | viruses | viruses | 11768 |
| murine leukemia virus | 184 | species | viruses | viruses | 11786 |
| bovine leukemia virus | 65 | species | viruses | viruses | 11901 |
| human t-lymphotropic virus 1 | 137 | no rank | viruses | viruses | 11908 |
| feline calicivirus | 59 | species | viruses | viruses | 11978 |
| hepatovirus a | 95 | species | viruses | viruses | 12092 |
| encephalomyocarditis virus | 105 | no rank | viruses | viruses | 12104 |
| foot-and-mouth disease virus | 89 | species | viruses | viruses | 12110 |
| borna disease virus | 65 | species | viruses | viruses | 12455 |
| chicken anemia virus | 60 | species | viruses | viruses | 12618 |
| respiratory syncytial virus | 164 | species | viruses | viruses | 12814 |
| porcine reproductive and respiratory syndrome virus | 65 | species | viruses | viruses | 28344 |
| rotavirus a | 58 | species | viruses | viruses | 28875 |
| human herpesvirus 8 | 140 | species | viruses | viruses | 37296 |
| bluetongue virus | 64 | species | viruses | viruses | 40051 |
| porcine circovirus | 65 | species | viruses | viruses | 46221 |
| enterovirus c | 118 | species | viruses | viruses | 138950 |
| sars coronavirus | 76 | no rank | viruses | viruses | 227859 |
| aspergillus niger | 110 | species | plants | fungi | 5061 |
| cryptococcus neoformans | 126 | species | plants | fungi | 5207 |
| candida albicans | 181 | species | plants | fungi | 5476 |
| [candida] glabrata | 87 | species | plants | fungi | 5478 |
| candida tropicalis | 76 | species | plants | fungi | 5482 |
| fusarium oxysporum | 93 | species | plants | fungi | 5507 |
| encephalitozoon cuniculi | 58 | species | plants | fungi | 6035 |
| rhizopus oryzae | 86 | species | plants | fungi | 64495 |
| fusarium verticillioides | 97 | species | plants | fungi | 117187 |
| leishmania donovani | 98 | species | invertebrates | protozoa | 5661 |
| trichomonas vaginalis | 87 | species | invertebrates | protozoa | 5722 |
| entamoeba histolytica | 98 | species | invertebrates | protozoa | 5759 |
| cryptosporidium parvum | 92 | species | invertebrates | protozoa | 5807 |
| toxoplasma gondii | 148 | species | invertebrates | protozoa | 5811 |
| fasciola hepatica | 68 | species | invertebrates | helminths | 6192 |
| echinococcus granulosus | 61 | species | invertebrates | helminths | 6210 |
| ascaris suum | 65 | species | invertebrates | helminths | 6253 |
| haemonchus contortus | 74 | species | invertebrates | helminths | 6289 |
| trichinella spiralis | 78 | species | invertebrates | helminths | 6334 |
| neospora caninum | 72 | species | invertebrates | protozoa | 29176 |
| borreliella burgdorferi | 144 | species | bacteria | bacteria | 139 |
| treponema pallidum | 87 | species | bacteria | bacteria | 160 |
| campylobacter coli | 65 | species | bacteria | bacteria | 195 |
| campylobacter jejuni | 130 | species | bacteria | bacteria | 197 |
| helicobacter pylori | 246 | species | bacteria | bacteria | 210 |
| brucella abortus | 76 | species | bacteria | bacteria | 235 |
| francisella tularensis | 74 | species | bacteria | bacteria | 263 |
| pseudomonas aeruginosa | 243 | species | bacteria | bacteria | 287 |
| burkholderia cepacia | 107 | species | bacteria | bacteria | 292 |
| pseudomonas stutzeri | 76 | species | bacteria | bacteria | 316 |
| legionella pneumophila | 133 | species | bacteria | bacteria | 446 |
| acinetobacter baumannii | 88 | species | bacteria | bacteria | 470 |
| moraxella catarrhalis | 87 | species | bacteria | bacteria | 480 |
| neisseria gonorrhoeae | 136 | species | bacteria | bacteria | 485 |
| neisseria meningitidis | 130 | species | bacteria | bacteria | 487 |
| bordetella pertussis | 122 | species | bacteria | bacteria | 520 |
| citrobacter freundii | 70 | species | bacteria | bacteria | 546 |
| [enterobacter] aerogenes | 75 | species | bacteria | bacteria | 548 |
| enterobacter cloacae | 90 | species | bacteria | bacteria | 550 |
| escherichia coli | 524 | species | bacteria | bacteria | 562 |
| klebsiella oxytoca | 66 | species | bacteria | bacteria | 571 |
| klebsiella pneumoniae | 146 | species | bacteria | bacteria | 573 |