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Where in loose bacterial surface polysaccharide plays a critical role?



A. Gonorrhea
B. Meningitis with no underlying trauma
C. Mycoplasma pneumonia
D. Pyelonephritis
E. Urinary tract infection
Asked by E.Barrington, Last updated: Feb 03, 2019

This question is part of

Micro Comprehensive Exam Part 6

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1 Answer

John Smith

John Smith

Answered on Sep 09, 2016

Meningitis with no underlying trauma-theansweris b.for all major causative agents of meningitis that are extracellular (and these are the major ones), the capsule (polysaccharide) is important for successful hematogenous spread to the central nervous system; examples include cryptococcus, meningitis-causing strains of haemophilus influenza (type b capsule), neisseria meningitidis, and streptococcus pneumoniae. all of these causative agents have polysaccharide capsules that allow survival in the blood-stream in an immunologically nave individual so they can reach the bloodbrain barrier. the major virulence factors in urinary tract and ascending urinary tract infections are pili or adhesions that attach to the uroepithelium. mycoplasma does not have a capsule.
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