Rickettsia, Borriella, Syphillis presentation

Apr 8th, 2015
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Study guide on Rickettsia, Borrillea and syphylis

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RICKETTSIAL DISEASES SPIROCHETAL DISEASES-BORRELIA-LYME DISEASE-LEPTOSPIROSIS-SYPHILIS The rickettsiae are a heterogeneous group of small, obligatelyintracellular, gram-negative coccobacilli and short bacilli,most of which are transmitted by a tick, mite, flea, or lousevector. Except in the case of louse-borne typhus, humans areincidental hostsRICKETTSIAL INFECTIONS The rickettsiae are a heterogeneous group of small, obligatelyintracellular, gram-negative coccobacilli and short bacilli, most of which are transmitted by a tick, mite, flea, or lousevector. Except in the case of louse-borne typhus, humans areincidental hosts They cause diseases such as :-Rocky Mountain spotted fever,-Ehrlichiosis,-TyphusCharacteristics of RickettsiaeRICKETTSIAL DISEASES All transmitted by ticks, except Q fever. All associated with a rash, myalgias, and headache, except Qfever and ehrlichiosis. All involve some degree of vasculitis and DIC as part ofpathogenesis. All can be treated with doxycyclineROCKY MOUNTAIN SPOTTED FEVER caused byRickettsia rickettsii Transmitted by ticks. Most common in mid-Atlantic states. Rash begins on extremities and moves centrally. Treat with doxycycline A number of host factors have been associated with anincrease in severity of or fatal RMSF Increasing age Male gender Presence of glucose-6-phosphate dehydrogenase deficiency Black race and alco

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