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Srict anaerobe, nonfermentative but oxidizes amino acids as energy sources, coccobacillus, sensitive to dessication,
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Bordetella Pertussis
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Requires charcoal, starch, blood, or albumin to grow- fastidious organism
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Bordetella Pertussis
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B. parapertusis( mild pertussis) and B. bronchiseptica( pneumonia)
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Bordetella Pertussis
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Highly contagious, resembles common cold, peak number of bacteria,
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Catarrhal stage
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Repetitive coughing, loss of clilated cells, mucous clearance impaired, whooping terminates with vomiting, immune response is pretty active
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Paroxysmal stage
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Bacteria diminish, secondary complications
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Convalescent stage
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Binds to galactose residues on sulfated glycolipids commonly expressed on ciliated cells
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FHA and Pertactin
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S2 subunit binds to glycolipids of ciliated cells and phagocytes.
Results in increase in cAMp which increases mucous production, decreased phagocytosis, chemotaxis, and oxidative burst
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PTX
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Peptidoglycan fragment that directly detroys ciliated epithelial respiratory cells and stimulates release of IL-1
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Tracheal cytotoxin
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Transmission through respiratory droplets
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B. pertussis,
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PCR, Culture from a oropharngeal swab of a Bordet-gengou media
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Bordetella Petussis detection
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Facuative anaerobe, ferments carbs, requires Nad and hemin to grow, coccobacillus
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Haemophilus influenza
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Pneumonia, epiglottis, and meningitis
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H. influenza
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Pilus, capsule( b being the worst), Low MW glycoprotein, IGA protease
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H. influenza
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Transmission through respiratory route and direct contact
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H. influenza
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