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Bacteriology > Lecture 14- Gram Negative Rods Pt.2 > Flashcards

Lecture 14- Gram Negative Rods Pt.2 Flashcards

1
Q

What are the characteristics of Salmonella?

A

Gram negative rod
Facultative intracellular

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2
Q

What are the virulence factors of Salmonella?

A

Septicemia
Endotoxin
Type III secretion system (injects molecules into target cells)

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3
Q

What is the main manifestation of Salmonella?

A

Gastroenteritis

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4
Q

What diseases can be caused by Salmonella?

A

Diarrhea
GI ulcers
Dry gangrene
Typhoid fever

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5
Q

Dx of Salmonella?

A

Fecal cultures (Specialized salmonella culture)
Blood culture
Cattle- gallbladder culture

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6
Q

What is the most common cause of infectious diarrhea in horses?

A

Salmonella

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7
Q

Tx of Salmonellosis in horses

A

Polymyxin to neutralize endotoxin

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8
Q

What is a common cause of Salmonellosis in horses?

A

Stress/hospitalization

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9
Q

What are the symptoms of Salmonella Pullorum in chickens?

A

Bacillary white diarrhea
Misshapen ovaries in asymptomatic carriers
Septicemia

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10
Q

How is Salmonella pullorum transmitted? Who is most vulnerable?

A

Vertically, affects hatchlings most often

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11
Q

What are symptoms of Salmonella Gallinarum infection in chickens?

A

Fowl typhoid
bile-stained liver

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12
Q

How is salmonella gallinarum transmitted? Who is most vulnerable?

A

Vertically and horizontally transmitted.
Mature birds are most affected

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13
Q

What Salmonella serotype is found in uncooked eggs

A

Enteritidis

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14
Q

Who is symptomatic in a Salmonella enteritidis infection? Humans or chickens?

A

humans only

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15
Q

What Enterobacteriaceae species can cause severe symptoms in humans with only 10 bacteria?

A

Shigella

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16
Q

What Enterobacteriaceae species is transmitted by rodent fleas?

A

Yersinia pestis

17
Q

Can Yersinia pestis be caught from infected cats/dogs?

A

No

18
Q

Where is Yersinia pestis geographically limited to in the US

A

Southwest

19
Q

Dx of Yersinia pestis?

A

Direct smears
culture
PCR

20
Q

What bacteria can cause mesenteric lymphadenitis, septicemia, and gastroenteritis in the colder months in birds, rodents, and cats?

A

Yersinia pseudotuberculosis

21
Q

What type of Yersinia is found in fish, causing enteric red-mouth disease?

A

Yersinia ruckeri

Bacteriology (11 decks)

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