Bartonella

Bartonella
Scientific classification
Domain:	Bacteria
Kingdom:	Pseudomonadati
Phylum:	Pseudomonadota
Class:	Alphaproteobacteria
Order:	Hyphomicrobiales
Family:	Bartonellaceae; Gieszczykiewicz 1939 (Approved Lists 1980)
Genus:	Bartonella; Strong et al. 1915 (Approved Lists 1980)
Species
	B. acomydis; B. alsatica; B. ancashensis; "Candidatus B. antechini"; B. apis; B. australis; B. bacilliformis; "Candidatus B. bandicootii"; B. birtlesii; B. bovis; "Candidatus B. breitschwerdtii"; B. callosciuri; B. capreoli; B. chomelii; B. clarridgeiae; B. coopersplainsensis; B. doshiae; "Candidatus B. durdenii"; "Candidatus B. eldjazairii"; B. elizabethae; B. florencae; B. fuyuanensis; B. gabonensis; B. grahamii; B. heixiaziensis; B. henselae; B. jaculi; B. japonica; B. koehlerae; B. kosoyi; B. krasnovii; B. mastomydis; "Candidatus B. mayotimonensis"; "Candidatus B. melophagi"; "Candidatus B. merieuxii"; "Candidatus B. monaxi"; B. naantaliensis; "Candidatus B. ovis"; B. pachyuromydis; B. peromysci; B. phoceensis; B. queenslandensis; B. quintana; B. rattaustraliani; B. rattimassiliensis; B. rochalimae; "Candidatus B. rudakovii"; B. saheliensis; B. schoenbuchensis; B. senegalensis; B. silvatica; B. silvicola; B. talpae; B. tamiae; B. taylorii; "Candidatus B. thailandensis"; B. tribocorum; B. vinsonii spp. arupensis; spp. berkhoffii; spp. vinsonii; spp. yucatanensis; ; "Candidatus B. volans"; B. washoensis; "Candidatus B. woyliei";
Synonyms
	Bartonia Strong et al. 1913; Grahamella (ex Brumpt 1911) Ristic and Kreier 1984; Rochalimaea (Macchiavello 1947) Krieg 1961;

Bartonella is a genus of Gram-negative bacteria. It is the only genus in the family Bartonellaceae. Bartonella species cause Bartonellosis, which is a group of zoonotic infectious diseases that affects both humans and animals. Common forms include cat-scratch disease (Bartonella henselae) and trench fever (Bartonella quintana). As Facultative intracellular parasites, Bartonella species can infect healthy people, but are considered especially important as opportunistic pathogens. Bartonella species are transmitted by vectors such as fleas, sand flies, and mosquitoes.

Currently, 12 Bartonella species are known to infect humans. As research continues, more species transmissible to humans from vectors can be discovered. 37 different species and 3 subspecies of Bartonella exist. While 12 species can infect humans, 3 Bartonella pathogens are largely associated with human transmission and infection: B. henselae, B. quintana, and Bartonella bacilliformis.