Haemophilus: Difference between revisions
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Haemophilus
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== Organisms == |
== Organisms == |
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* [[Haemophilus influenzae]]: causes meningitis and epiglottitis |
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**Typeable (a through f) |
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***Hib causing most invasive infections and bacteremic pneumonia |
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***Hia and Hif also cause severe infections |
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**Non-typeable are generally less virulent, but can still cause [[otitis media]], [[epiglottitis]], [[acute exacerbation of COPD]], [[sinusitis]], [[URTI]], and [[pneumonia]] |
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**[[Haemophilus paraphrophilus]] is now [[Aggregatibacter paraphrophilus]] |
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**[[Haemophilus aphrophilus]] is now [[Aggregatibacter aphrophilus]] |
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**[[Haemophilus segnis]] is now [[Aggregatibacter segnis]] |
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== Management == |
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* About half of all isolates have beta-lactamases |
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{{DISPLAYTITLE:''Haemophilus''}} |
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[[Category:Gram-negative coccobacilli]] |
[[Category:Gram-negative coccobacilli]] |
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Latest revision as of 17:19, 25 February 2022
Microbiology
- Gram-negative coccobacilli
- Grow well on chocolate agar
- Form satellite colonies around Staphylococcus aureus
Organisms
- Haemophilus influenzae: causes meningitis and epiglottitis
- Typeable (a through f)
- Hib causing most invasive infections and bacteremic pneumonia
- Hia and Hif also cause severe infections
- Non-typeable are generally less virulent, but can still cause otitis media, epiglottitis, acute exacerbation of COPD, sinusitis, URTI, and pneumonia
- Typeable (a through f)
- Haemophilus parainfluenzae, Haemophilus aphrophilus: HACEK group organisms, cause endocarditis
- Haemophilus ducreyi: causes chancroid
Management
- About half of all isolates have beta-lactamases
