MMI133 Lecture Notes - Lecture 2: Disseminated Intravascular Coagulation, Neisseria Meningitidis, Cerebrospinal Fluid
21 Oct 2016
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How would you classify the gram stain? a. b. c. d. Classification of organisms classified into families on the basis of the relatedness of genetic information (use rrna) Gram stain: separates bacteria into two major groups. Acid-fast: used for mycobacteria (tb) most important practical distinction to know about bacteria is the staining characteristic: Gram"s stain still used as one of the major diagnostic tests used to identify disease causing bacteria based on cell wall structure: amount of peptidoglycan in the bacterial cell wall. Define meningitis and explain what the meninges are. Describe neisseria meningitidis in terms of its gram stain reaction and physical attributes. Identify the mode of transmission for n. meningitidis. Meninges are coverings of the brain and spinal cord (protect and enclose) Usually caused by microorganisms infecting the cerebral spinal fluid. >12 serotypes based on capsule carbohydrates (polysaccharides or sugars) Only 4 subtypes called serotypes are responsible for most of the epidemics in the world (a,b,c, w-135)
