RICKETTSIAL DISEASES.pptx - RICKETTSIAL DISEASES RONO...

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RICKETTSIAL DISEASESRONO RAYMOND
Rickettsial diseasesare small obligatelyintracelullar gram negative that resides in cytoplasmor nucleusGenera of clinical infections ;*Orientia*Coxiella*Ehrlichia*Rickettsia*Anaplasma*Neorickettsia
3 major groupsbased on clinical characteristics of disease:1. spotted fever group*Rock mountain spotted fever*Rickettsial pox*Boutonnouse fever2.typhus group;*Louse borne(epidemic) typhus*Brill-zinsser disease(relapsing)*Murine(endemic or flea borne)3. scrub typhus group.*Tsutsugamashi disease
Epidemiological clues.environmental exposure to ticks ,fleasor mites during active season.travel to endemic areas duringincubation period.exposure to parturient ruminants egcats and dogs.exposure to flying squirrels.history ofprevious louse borne typhus
Clinical featuresClinical features are similar for all specie in the first 5days;~ fever~ headache~ myalgia with or without nausea~vomitting~coughWith the evolutionof clinical disease specific signsdevelop and include;
Specific clinical signsMacular and maculopapular rashVesicular rashEscharPneumonitis eg inQ fever and RMSFMeningoencephalitis eg inscrub typhus and severe RMSF

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Term
Spring
Professor
NoProfessor
Tags
Disseminated intravascular coagulation, Rickettsia, Scrub typhus

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