| anaplasma marginale | species | bacteria | bacteria | species | 770 |
| anaplasma phagocytophilum | species | bacteria | bacteria | species | 948 |
| candidatus rickettsia andeanae | subspecies | bacteria | bacteria | species | 273247 |
| candidatus rickettsia tarasevichiae | species | bacteria | bacteria | species | 205075 |
| ehrlichia chaffeensis | species | bacteria | bacteria | species | 945 |
| ehrlichia ruminantium | species | bacteria | bacteria | species | 779 |
| rickettsia akari | species | bacteria | bacteria | species | 786 |
| rickettsia amblyommatis | species | bacteria | bacteria | species | 33989 |
| rickettsia amblyommatis str. ac/pa | no rank | | | no rank | 1359164 |
| rickettsia asemboensis | species | | | species | 1068590 |