RICKETTSIA ORIENTIA EHRLICHIA ANAPLASMA COXIELLA BARTONELLA
RICKETTSIA ORIENTIA EHRLICHIA ANAPLASMA COXIELLA BARTONELLA
General introduction Gram-negative, obligate intracellular coccobacilli bacteria that infect mammals and arthropods Rickettsiae are transmitted in the arthropods, which serves as both vector and reservior ■ Both dna and rna Is sensitive to antibiotic
General introduction ◼ Gram-negative, obligate intracellular coccobacilli bacteria that infect mammaols and arthropods ◼ Rickettsiae are transmitted in the arthropods,which serves as both vector and reservior ◼ Both DNA and RNA ◼ Is sensitive to antibiotic
Category of rickettsia Genus Rickettsia, Coxie/a, Orientia Ehrlichia bartonella Species Rickettsia prowazekii (epidemic typhus) Rickettsia typhi(endemic typhus), Rickettsia rickettsii(spotted fever), Rochalimaea quintana ( trench fever), Coxiella burnetii( Q fever)
Category of rickettsia ◼ Genus Rickettsia, Coxiella ,Orientia,Ehrlichia Bartonella ◼ Species Rickettsia prowazekii (epidemic typhus), Rickettsia typhi (endemic typhus), Rickettsia rickettsii (spotted fever), Rochalimaea quintana (trench fever), Coxiella burnetii (Q fever)
Bilogical features a Variable shape, coccobacilli Gram negative Microcapsule and slim 戒使 layer a Culture: in york sacs of embryonated eggs
Bilogical features ◼ Variable shape, coccobacilli ◼ Gram negative ◼ Microcapsule and slim layer ◼ Culture : in york sacs of embryonated eggs
Antigenic structure ■LPs Rickettsia tsutsugamushi Coxiella burneti(Q fever) LPS I smooth LPSI rough Weil-Felix reacrion a Surface protein(SPA)
Antigenic structure ◼ LPS Rickettsia tsutsugamushi Coxiella burnetii (Q fever) LPSⅠ smooth LPSⅡ rough Weil-Felix reacrion ◼ Surface protein(SPA)