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TM: Rickettsiae (dDx (dengue, malaria, meningococcal infections,…
TM: Rickettsiae
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Clinical features
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possible pneumonia, myocarditis, CNS problems (encephalitis)
Scrub (mite) typhus
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area = SE Asia, India, Pacific islands, Australia
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Pathogenesis
rickettsiae get phagocytosed into the host cell via adhesins @ the endothelial lining of vasculature
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Tx
Rocky mountain spotted fever, Mediterranean spotted fever + epidemic typhus are all life-threatening
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doxycycline, tetracyclin, chloramphenicol
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Spotted fever
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African tick typhus
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reservoir = rodents, dogs
area = Africa (esp SSA), India, Caribbean, West Indies (tourists must be careful)
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