Free living forms (of rickettsia?)—are NOT obligate intracellular parasites
Bug Bartonella bacilliformis B. quintana B. henselae Diseases Carrion’s disease Oroya fever Veruga peruana Trench Fever (mild disease) Bacillary angiomatosis Cat Scratch Fever *main cause of lymphadenopathy in kids -papulelymphadenopathy Bacillary angiomatosis -in AIDS pts. -sub-Q angiomas resemble Kaposi’s sarcoma -cranberry papule -can be systemic Erlichia canis tetracycline Brown dog -zoonotic agent tick -confused w/ RMSF, but no rash Virulence Factors Diagnosis Treatment -tetracycline, chloramphenicol Vector fly Special Notes -W. of Andes mountains, -not very important!
Body louse -Hx of cat contact -DTH skin test -biopsy -culture difficult - tetracycline, erythromycin, rifampin