Biota (Life)
Prokaryotes (Prokaryota)
Bacteria (Bacterium)
Negibacteria (Rjheekñndd)
Proteobacteria (Purple bacteria & relatives)
Alphaproteobacteria
Rickettsiales
Rickettsiaceae
Rickettsia
Rickettsia prowazekii
Rickettsia prowazekii str. madrid e (21102949)