exam 3 bacti Flashcards

1
Q

what does ETEC do

A

makes the cells a pump. net efflux of water and electrolytes

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2
Q

acute and chronic swine dysentary

A

brachyspira hyodysenteriae

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3
Q

edema dz of pigs

A

STEC. shiga toxin

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4
Q

PPE and PHE

A

Lawsonia intracellularis

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5
Q

how do you ddx PPE vvs PHE

A

PPE: piglets, thickened colon

PHE: finishers, thickened ileum

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6
Q

what are the two forms of clostridia

A

enterotoxemia and enteropathies

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7
Q

what clostridia is for enterotoxemia

A

C. perfringens D

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8
Q

who gets C. perfringens D

A

cattle, goats, sheep

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9
Q

what toxin is released by C. perfringens D

A

epsilon exotoxin that is activated by trypsin

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10
Q

Johne’s disease

A

mycobacterium avium paratuberculosis

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11
Q

granulomatous enteritis, acid fast rods, with macrophage infultrates, progressive

A

Johnes Dx

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12
Q

age of cattle with Johnes disease

A

around two but has long incubation so they are infected as neonates

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13
Q

diarrhea in a calf that is 5 days old

A

ETEC

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14
Q

what are the extraintestinal infections

A

C. perfringens D
STEC edema dz pigs

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15
Q

intraintestinal noninvasive infections

A

ETEC

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16
Q

intraintestinal invasive infections

A

salmonella, camphy, c. perfringens, brachyspira hyodysenteriae, M. a. paratb, lawsonia intracellularis

17
Q

Blood diarrhea in swine. what could cause it

A

swine dysentary (b. hyodys)
PHE (l. intracellularis)
c. perfringens ABCE

18
Q

edema in a pig

A

STEC edema dz

19
Q

diarrhea in a piglet

A

ETEC
PPE
c. perfringens ABCE
salmonella

20
Q

creates carrier animals

A

salmonella
Johnes Dz

21
Q

opportunistic pathogen that is facultatively intracellular

A

salmonella

22
Q

three take aways about salmonella

A

diarrhea, septicemia, carriers

23
Q

mild diarrhea and gutter piglet

A

PPE on ddx

24
Q

what is unique about c. perfringens D

A

it is normal flora in the LI and when there is gut stasis it moves to the SI and its toxins are activated

25
what are four things to remember about Johnes
long incubation granulomatous enteritis acid fast rods chronic and progressive