Poster 11: Reptile Salmonellosis Flashcards Preview

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Flashcards in Poster 11: Reptile Salmonellosis Deck (5)
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1
Q

background

A
  • commensal for reptiles
  • normally asymptomatic
  • clinical severity increases with high stocking density, contaminated diets, deficient hygiene and stress
2
Q

Mechanism of disease

A
  • salmonella induces host cell to engulf using type 3 injector system
  • injected proteins trigger epithelial cell membrane to ruffle
  • bacterium encased in vacuole made of host membrane
  • injects other bacterial proteins into surrounding vacuole. altering vacuole structure and blocking fusion with lysosomes
  • bacteria continue to divide while vacuole grows and bacteria thought to escape when proliferation exceeds vacuole capacity
3
Q

Transmission

A
  • majority of salmonellosis comes from cecal-oral transmission
  • shed through skin or cloaca
  • turtles <4 inches high risk because toddlers more likely to put them in mouth
4
Q

Clinical signs

A
  • gastroenteritis
  • colitis
  • blood infections
  • meningitis
5
Q

treatment

A
  • antibiotics not recommended as reptiles often reinfect themselves
  • promotes AMR
  • may be detrimental to animals that have it as commensal bacteria