Exam 5 - Study Guide - Chapter 22 Microbial Diseases of the...

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Chapter 22 – Microbial Diseases of the Nervous System Blood-brain barrier normally prevents most large molecules, such as antibiotics, from entering the CNS Infections occur when microorganisms physically enter the CNS thru the bloodstream, lymph fluids or through trauma Meningitis Infection of the meninges May be caused by o Viral infections o Bacteria o Protozoa o Fungi Encephalitis Infection of the brain tissues May be caused by o Viral infections o Bacteria o Protozoa o Fungi Bacterial Diseases of the Nervous System Meningitis Diagnosis for all bacterial meningitis is an examination of CSF, obtained by spinal tap Normal CSF is straw colored Turbid CSF = bacterial meningitis Three most common bacterial agents are: o Haemophilus influenza Found in normal throat microbiota of most adults Requires blood factors for growth Most common cause of meningitis in children under 4 Vaccine is available o Streptococcus pneumonia Usually found as normal microbiota of healthy adults
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This note was uploaded on 05/05/2008 for the course BIOL 357 taught by Professor Kalia during the Spring '08 term at University of Louisville.

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Exam 5 - Study Guide - Chapter 22 Microbial Diseases of the...

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