| saccharomyces cerevisiae | 584 | species | plants | fungi | 4932 |
| escherichia | 524 | genus | bacteria | | 561 |
| escherichia coli | 524 | species | bacteria | bacteria | 562 |
| human immunodeficiency virus | 455 | species | viruses | viruses | 12721 |
| human immunodeficiency virus 1 | 410 | species | viruses | viruses | 11676 |
| human immunodeficiency virus 2 | 399 | species | viruses | viruses | 11709 |
| pseudomonas | 295 | genus | bacteria | | 286 |
| hepatitis c virus | 289 | species | viruses | viruses | 11103 |
| staphylococcus | 279 | genus | bacteria | | 1279 |
| staphylococcus aureus | 271 | species | bacteria | bacteria | 1280 |
| bacillus | 270 | genus | bacteria | | 1386 |
| salmonella | 267 | genus | bacteria | | 590 |
| mycobacterium | 260 | genus | bacteria | | 1763 |
| human herpesvirus 4 | 257 | species | viruses | viruses | 10376 |
| helicobacter pylori | 246 | species | bacteria | bacteria | 210 |
| hepatitis b virus | 246 | species | viruses | viruses | 10407 |
| pseudomonas aeruginosa | 243 | species | bacteria | bacteria | 287 |
| helicobacter | 241 | genus | bacteria | | 209 |
| mycobacterium tuberculosis | 238 | species | bacteria | bacteria | 1773 |
| streptococcus | 235 | genus | bacteria | | 1301 |
| human papillomavirus | 235 | species | viruses | viruses | 10566 |
| cytomegalovirus | 231 | genus | viruses | | 10358 |
| bacillus subtilis | 219 | species | bacteria | bacteria | 1423 |
| listeria | 212 | genus | bacteria | | 1637 |
| plasmodium falciparum | 209 | species | invertebrates | protozoa | 5833 |
| campylobacter | 207 | genus | bacteria | | 194 |
| listeria monocytogenes | 207 | species | bacteria | bacteria | 1639 |
| aspergillus | 200 | genus | plants | | 5052 |
| streptococcus pneumoniae | 199 | species | bacteria | bacteria | 1313 |
| rous sarcoma virus | 199 | species | viruses | viruses | 11886 |
| clostridium | 198 | genus | bacteria | | 1485 |
| vaccinia virus | 197 | species | viruses | viruses | 10245 |
| murine leukemia virus | 184 | species | viruses | viruses | 11786 |
| vibrio | 182 | genus | bacteria | | 662 |
| candida albicans | 181 | species | plants | fungi | 5476 |
| chlamydia | 178 | genus | bacteria | | 810 |
| vesicular stomatitis virus | 177 | species | viruses | viruses | 11276 |
| cyanobacteria | 174 | phylum | bacteria | | 1117 |
| yersinia | 172 | genus | bacteria | | 629 |
| streptomyces | 171 | genus | bacteria | | 1883 |
| human herpesvirus 1 | 171 | species | viruses | viruses | 10298 |
| lactobacillus | 170 | genus | bacteria | | 1578 |
| shigella | 165 | genus | bacteria | | 620 |
| rhizobium | 164 | genus | bacteria | | 379 |
| respiratory syncytial virus | 164 | species | viruses | viruses | 12814 |
| neisseria | 163 | genus | bacteria | | 482 |
| klebsiella | 160 | genus | bacteria | | 570 |
| leishmania major | 160 | species | invertebrates | protozoa | 5664 |
| human herpesvirus 5 | 159 | species | viruses | viruses | 10359 |
| enterococcus | 156 | genus | bacteria | | 1350 |
| haemophilus | 155 | genus | bacteria | | 724 |
| bacteroides | 152 | genus | bacteria | | 816 |
| cyanobacterium | 151 | genus | bacteria | | 102234 |
| haemophilus influenzae | 148 | species | bacteria | bacteria | 727 |
| pneumocystis carinii | 148 | species | plants | fungi | 4754 |
| toxoplasma gondii | 148 | species | invertebrates | protozoa | 5811 |
| lymphocytic choriomeningitis mammarenavirus | 148 | species | viruses | viruses | 11623 |
| klebsiella pneumoniae | 146 | species | bacteria | bacteria | 573 |
| mycoplasma | 146 | genus | bacteria | | 2093 |
| borrelia | 145 | genus | bacteria | | 138 |
| vibrio cholerae | 145 | species | bacteria | bacteria | 666 |
| borreliella burgdorferi | 144 | species | bacteria | bacteria | 139 |
| chlamydia pneumoniae | 143 | species | bacteria | bacteria | 83558 |
| shigella flexneri | 142 | species | bacteria | bacteria | 623 |
| human herpesvirus 8 | 140 | species | viruses | viruses | 37296 |
| schistosoma mansoni | 138 | species | invertebrates | helminths | 6183 |
| rotavirus | 138 | genus | viruses | | 10912 |
| escherichia coli o157:h7 | 138 | no rank | bacteria | bacteria | 83334 |
| legionella | 137 | genus | bacteria | | 445 |
| human t-lymphotropic virus 1 | 137 | no rank | viruses | viruses | 11908 |
| neisseria gonorrhoeae | 136 | species | bacteria | bacteria | 485 |
| influenza a virus | 135 | species | viruses | viruses | 11320 |
| pseudomonas putida | 133 | species | bacteria | bacteria | 303 |
| legionella pneumophila | 133 | species | bacteria | bacteria | 446 |
| trypanosoma brucei | 133 | species | invertebrates | protozoa | 5691 |
| alcaligenes | 132 | genus | bacteria | | 507 |
| enterococcus faecalis | 132 | species | bacteria | bacteria | 1351 |
| mycobacterium bovis | 132 | species | bacteria | bacteria | 1765 |
| campylobacter jejuni | 130 | species | bacteria | bacteria | 197 |
| neisseria meningitidis | 130 | species | bacteria | bacteria | 487 |
| trypanosoma cruzi | 130 | species | invertebrates | protozoa | 5693 |
| chlamydia trachomatis | 129 | species | bacteria | bacteria | 813 |
| desulfovibrio | 129 | genus | bacteria | | 872 |
| bacillus thuringiensis | 129 | species | bacteria | bacteria | 1428 |
| parvovirus | 128 | genus | viruses | | 10781 |
| clostridioides difficile | 127 | species | bacteria | bacteria | 1496 |
| bordetella | 126 | genus | bacteria | | 517 |
| yersinia enterocolitica | 126 | species | bacteria | bacteria | 630 |
| cryptococcus neoformans | 126 | species | plants | fungi | 5207 |
| mycobacterium avium | 125 | species | bacteria | bacteria | 1764 |
| mouse mammary tumor virus | 125 | species | viruses | viruses | 11757 |
| streptococcus sp. 'group a' | 124 | species | bacteria | bacteria | 36470 |
| azotobacter | 123 | genus | bacteria | | 352 |
| erwinia | 123 | genus | bacteria | | 551 |
| lactococcus | 123 | genus | bacteria | | 1357 |
| pseudomonas fluorescens | 122 | species | bacteria | bacteria | 294 |
| acinetobacter | 122 | genus | bacteria | | 469 |
| bordetella pertussis | 122 | species | bacteria | bacteria | 520 |
| bacillus anthracis | 122 | species | bacteria | bacteria | 1392 |
| polyomavirus | 121 | genus | viruses | | 10624 |