Ehrlichia risticii Holland et al. 1985 Ehrlichia risticii Holland et al. 1985 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Proteobacteria (sic) Garrity et al. 2021 Pseudomonadota corrig. Garrity et al. 2021 Alphaproteobacteriota (sic) Garrity et al. 2021 Alphaproteobacteria Garrity et al. 2006 Rickettsiales Gieszczykiewicz 1939 (Approved Lists 1980) emend. Dumler et al. 2001 Anaplasmataceae Philip 1957 (Approved Lists 1980) emend. Dumler et al. 2001 Ehrlichia Moshkovski 1945 (Approved Lists 1980) emend. Dumler et al. 2001 Ehrlichia risticii Holland et al. 1985 Ehrlichia Moshkovski 1945 (Approved Lists 1980) emend. Dumler et al. 2001 Ehrlichia canis (Donatien and Lestoquard 1935) Moshkovski 1945 (Approved Lists 1980) emend. Dumler et al. 2001 Ehrlichia sennetsu (Misao and Kobayashi 1956) Ristic and Huxsoll 1984 Ehrlichia muris Wen et al. 1995 emend. Hördt et al. 2020 Ehrlichia phagocytophila (Foggie 1949) Philip 1962 (Approved Lists 1980) Ehrlichia ewingii Anderson et al. 1992 emend. Dumler et al. 2001 Ehrlichia ruminantium (Cowdry 1925) Dumler et al. 2001 emend. Hördt et al. 2020 Ehrlichia equi Lewis et al. 1988 Ehrlichia chaffeensis Anderson et al. 1992 emend. Hördt et al. 2020 Ehrlichia minasensis Cabezas-Cruz et al. 2016 Ehrlichia walkeri corrig. Brouqui et al. 2003 Ehrlichia walkerii (sic) Brouqui et al. 2003 Ehrlichia rustica Ehounoud et al. 2016 Ehrlichia urmitei Ehounoud et al. 2016 Ehrlichia khabarovskensis corrig. Rar et al. 2015 Ehrlichia khabarensis (sic) Rar et al. 2015 Ehrlichia ovata Lynn et al. 2019 Ehrlichia occidentalis Gofton et al. 2017 Ehrlichia ornithorhynchi Gofton et al. 2018 Ehrlichia shimanensis Kawahara et al. 2006 Ehrlichia regneryi Bastos et al. 2015 Ehrlichia japonica Lin et al. 2022 Neorickettsia risticii (Holland et al. 1985) Dumler et al. 2001 emend. Hördt et al. 2020 Ehrlichia risticii Holland et al. 1985 Judicial Commission of the International Committee on Systematics of Prokaryotes Status of strains that contravene Rules 27 (3) and 30 of the International Code of Nomenclature of Bacteria. Opinion 81. 2008 58 7 1755 1763 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.2008/005264-0 18599730 Lin M. Zhang C. Gibson K. Rikihisa Y. Analysis of complete genome sequence of Neorickettsia risticii: causative agent of Potomac horse fever 2009 37 6076 6091 Nucleic Acids Research Nucleic Acids Res. 0305-1048 1362-4962 10.1093/nar/gkp642 19661282 Weisburg W.G. Dobson M.E. Samuel J.E. Dasch G.A. Mallavia L.P. Baca O. Mandelco L. Sechrest J.E. Weiss E. Woese C.R. Phylogenetic Diversity of the Rickettsiae 1989 171 4202 4206 Journal of Bacteriology J Bacteriol 0021-9193 1098-5530 2753854 Liolios K. Chen I.M. Mavromatis K. Tavernarakis N. Hugenholtz P. Markowitz V.M. Kyrpides N.C. The Genomes On Line Database (GOLD) in 2009: status of genomic and metagenomic projects and their associated metadata 2010 38 D346 354 Nucleic Acids Research Nucleic Acids Res. 0305-1048 1362-4962 10.1093/nar/gkp848 19914934 Holland C.J. Weiss E. Burgdorfer W. Cole A.I. Kakoma I. Ehrlichia risticii sp. nov.: etiological agent of equine monocytic ehrlichiosis (synonym, Potomac horse fever). 1985 35 4 524 526 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-35-4-524 Neorickettsia risticii (Holland et al. 1985) Dumler et al. 2001 emend. Hördt et al. 2020 Holland C.J. Weiss E. Burgdorfer W. Cole A.I. Kakoma I. Ehrlichia risticii sp. nov.: etiological agent of equine monocytic ehrlichiosis (synonym, Potomac horse fever). 1985 35 4 524 526 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-35-4-524 Dumler J.S. Barbet A.F. Bekker C.P.J. Dasch G.A. Palmer G.H. Ray S.C. Rikihisa Y. Rurangirwa F.R. Reorganization of genera in the families Rickettsiaceae and Anaplasmataceae in the order Rickettsiales: unification of some species of Ehrlichia with Anaplasma, Cowdria with Ehrlichia and Ehrlichia with Neorickettsia, descriptions of six new species combinations and designation of Ehrlichia equi and 'HGE agent' as subjective synonyms of Ehrlichia phagocytophila. 2001 51 6 2145 2165 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/00207713-51-6-2145 11760958