USMLE step 2 Mcq 317:Neisseria meningitides is a gram negative organism

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Question:
Neisseria meningitides is a gram negative organism which causes meningitis in young adults. The bacteria are most likely to gain entry into the meninges via:

a) the blood stream
b) the lymphatic drainage of the meninges
c) the perineural sheath of the olfactory nerve
d) the neural tracts of the spinal cord
e) the optic nerve and tract


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