Shigella Lawrence Flashcards
1
Q
Shigella
A
- closely realted to E. coli
- important pathogen of people
2
Q
Shigellosis is a common and serious disease in
A
- monkeys
- dogs may excrete the organism after being infected by people, but they are resistant to disease
3
Q
Shigella pathogenesis
A
- invades and multiplies in intestinal cells
- enters through M cells
- Type III secretion system
- invade and multiply in cytoplasm
- Induse apoptosis if phagocytosed
- Then go back
4
Q
S. dysenteriae
A
- can produce shiga toxin
- local endothelial cells
- 60S ribosomes and leads to inhibition of protein synthesis
5
Q
Shigella disease
A
signs of fever, severe abdominal pain, and watery diarrhea
6
Q
Edwardsiella ictaluri
A
- enteric septicemia of channel catfish (ESC)
- 22-28 C water
- acute and chronic form
- antimicrobial medicated feed
- bacterin has limited effectiveness
7
Q
Edwardsiella tarda
A
-opportunist sporadic infection in fish and mammals
-
8
Q
Edwardsiella piscicida
A
- enteric septicemia in catfish and hybrid catfish
- summer months with temperature > 80 F
9
Q
Edwardsiella anguillarum
A
-eels in Japan/China
