chapitre 3 ETEC Flashcards

1
Q

ETEC

A

escherichia coli entérotoxique

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2
Q

colonisation?

A

fimbriae attache à entérocytes (intestin)
adhésine (adhésion prot)

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3
Q

types entérotoxines

A

ST
LT

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4
Q

ST

A

heat stable

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5
Q

LT

A

heat labile

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6
Q

diarrhée?

A
  1. sécrétion de ST et LT
  2. ouverture canal CFTR (chlore) dans entérocyte
  3. Cl dans linière intestinale
  4. H2O dans cellule suit Cl (osmose)
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7
Q

facteurs de virulence

A

capsule
flagelle modifiée – adhésion à entérocytes + dispersion

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