Alphaproteobacteria

Alphaproteobacteria is a class of bacteria. All species in this class are Gram-negative. 

 

Classification

Domain : Prokaryota, Bacteria  

Kingdom : Bacteria 

Phylum : Proteobacteria   

Class : Alphaproteobacteria

 

Order : Rhizobiales 

Family : Bartonellaceae  

• Bartonella quintana : Trench fever, bacillary angiomatosis, endocarditis.
• Bartonella species : Endocarditis, myocarditis.

Family : Brucellaceae 

• Brucella species, especially Brucella abortus, Brucella melitensis and Brucella suis : Brucellosis (undulant fever).

 

Order : Rickettsiales 

Family : Rickettsiaceae 

• Anaplasma phagocytophilum : Human granulocytic anaplasmosis
• Ehrlichia chaffeensis : Ehrlichiosis
• Ehrlichia ewingii : Ehrlichiosis
• Ehrlichia canis : Ehrlichiosis
• Orientia tsutsugamushi : Scrub typhus
• Rickettsia prowazekii (Gram-negative, intracellular, bacilli) : Epidemic louse-borne typhus
• Rickettsia typhi (Gram-negative, intracellular, bacilli) : Murine typhus 
• Rickettsia australis (Gram-negative, intracellular, bacilli) : Queensland tick typhus