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25 Cards in this Set
- Front
- Back
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Which is the most common capsule type of haemophilus influenzae?
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b
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What are the disease associated with b type haemophilus influenza?
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meningitis, septic arthritis, epiglottitis, sepsis
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What is the Hib vaccine?
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hemophilus influenza b type vaccine combined with diptheria
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What causes braziliam purpuric fever?
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H. influenzae aegyptius
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What are the virulence factors of H. influenzae?
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polysac capsule, exotoxin, outer membrane ptns, pili
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Why would a two year old present in the ER with a stridor, fever, sore throat?
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H. influenza type b, epiglottitis
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What does unencapsulated h. influenza cause?
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sinusitis, otitis, exacerbation of chronic bronchitis
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What is brazilian purpuric fever?
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conjunctivitis, fever, petecheae, purpura, shock, death
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What does H. influenza require of the blood?
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factor X (hematin) and factor V (NAD)
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What do you use to treat H. influenza?
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ampicillin, cephalosporins, tetracclin, fluoroquinolones
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What do H. aphrophilus and H. parainfluenzae cause?
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endocarditis
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What does H. ducreyi cause?
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STD, painful genital ulcers with LAD, inc risk of HIV transfection
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What are the four virulence factors of bordetella?
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pertussin toxin, FHA, Extracytoplasmic AC, Tracheal cytotoxin
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How does pertussin toxin work?
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Subunit B and A inc AC-inc cAMP-in PKA-in P of enzymes---inhibits phagocytosis, increase lymphocytosis
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How does extracytoplasmic AC work?
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grenades, impairs H2O2 and SOD
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How does FHA work?
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Help bind bug to surface for releasing toxins
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How does tracheal cytotoxin work?
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destroy ciliated cells, can't be removed from tract
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What is Dieterle's Silver stain used to detect?
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Legionella pneumophilia
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What causes Pontiac Fever?
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Legionella pneumophila
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What is Pontiac Fever?
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headache, muscle ache, fatigue, fever, chills
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What is Legionnaires disease?
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High fever, severe pneumonia
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What is the treatment for legionnaires disease?
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erythromycin
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What are the virulence factors of legionaires diseas?
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hemolysin, capsule, motile
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What type of media do you need for legionella?
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buffered charcoal yeast extract agar
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What can be seen on urinalysis of a person with legionella?
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L. pheumophila serotype 1
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