Salmonella Flashcards
1
Q
Rod Size
A
Short rods
2
Q
Gram Rxn:
A
Negative
3
Q
Oxidase/catalase
A
Oxidase
4
Q
Motility
A
Motile, lactose -, H2S +, Plating
5
Q
Aerobic/ anaerobic
A
aerobic/facultatively anaerobic
6
Q
Growth Temp (Psychrotrophic/ mesophilic)
A
8-48 C
7
Q
pH for growth
A
4.0 - 9.5
greater survival in fermented food and stomach (pH 5.2)
8
Q
aw for growth
A
> 0.93
9
Q
salt tolerance
A
Inhibited by 3-4% NaCl
Increases w/ temp
10
Q
infectious dose
A
~ 10- 100 total cells
low infectious dose associated w/ high fat food (chocolate, cheese, meat)
11
Q
susceptible individuals
A
Newborns, infants, children, immunocompromised adults
12
Q
onset time
A
Enterocolitis: 8-72 hr
13
Q
major symptoms
A
Self-limiting non-bloody diarrhea and abdominal pain
14
Q
Foods associated w/ outbreaks
A
Poultry, eggs, beef, pork, lamb, farm- raised fish/shellfish, fruits/veg,
