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Meningitis/Encephalitis - Coggle Diagram
Meningitis/Encephalitis
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Arboviruses
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Diagnosis: Paired sera, Ag capture ELISA
Neisseria meningitidis
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Agent: gram neg. diplococci, facultative intracellular, grow under capnophilic conditions
VF: polysaccharide capsule, LOS (lack rep. residues of O Ag carbs -> capillary damage, increased vasc. permeability and septic shock), pili (attachment & colonization), IgA protease
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Risk: children > 2m-1y/o, young adults 16-23, elderly, those with C5-8 deficiencies, asplenic pts, dorms, military recruits
Diagnosis: Gram stain CSF, latex agglutination, blood culture, Chocolate agar (maltose & glucose), oxidase, catalase +
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Signs: sore throat, neck stikkness, photophobia, hemorragic skin rash, Waterhouse Friederichsen Syndrome