Haemophilus Flashcards

1
Q

Classification bactérienne

A

Bacilles GRAM négatif

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2
Q

Particularité

A

Besoin pour leur croissance de 1 ou 2 facteurs présents dans le sang :

  • Le facteur V
  • Le facteur X
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3
Q

Facteur V

A

Thermolabile

NAD : Nicotiamide-adénine-dinucléotide

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4
Q

Facteur X

A

Thermostable

hémine ou ferroprotoporphyrine

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5
Q

Réservoir

A

Commensal de l’oropharynx et du nasopharynx

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6
Q

Facteurs de virulence

A

Capsule : Sérotype B est le plus virulent

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7
Q

Pouvoir pathogène

A

Méningites purulentes :
Capsulée chez les enfants
Non capsulée chez les vieux

Infections des VAS

Infection des VAI : exacerbation de pathologies existantes

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8
Q

Prélèvement

A

LCR
LBA
Hémocs
Pus d’otite et de sinusite

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9
Q

Culture

A

Aéro-anaérobie

Milieux enrichis en sang cuit

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10
Q

Traitement

A
Augmentin 
C2G 
C3G 
Pristinamycine 
Fluoroquinolones sauf chez les enfants
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11
Q

Prévention

A

Vaccination : HIB

2,4 et 11 mois

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