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OS4-MS/Derm/Rheum > Micro review: Ryan > Flashcards

Micro review: Ryan Flashcards

1
Q

Which E. coli strain does not ferment sorbitol?

A

EHEC O157:H7

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2
Q

ETEC Pathogenesis?

A

Heat-labile and heat stable toxin

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3
Q

EPEC Pathogenesis?

A

Attaching/effacing lesions

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4
Q

EIEC Pathogenesis?

A

Similar to shigella; intracellular mult., extends into adjacent cells

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5
Q

EHEC Pathogenesis?

A

Attaching/effacing lesion, Shiga toxin

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6
Q

EAEC Pathogenesis?

A

Pathogenesis not well understool

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7
Q

S. enteriditis Pathogenesis?

A

Type III secretion system for bacterial protein transfer and macrophage killing.

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8
Q

Shigella Pathogenesis?

A

F actin polymerization w/ protrusion formation

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9
Q

S. enterica Pathogenesis?

A

bacteria engulfed by MPs in luymoh tissye and disseminate to lymph nodes and RES

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10
Q

B. cereus Pathogenesis?

A

Direct ingestion of heat stable toxin

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11
Q

V. cholerae Pathogenesis?

A

AB toxin causes persisten stimulation of AC

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12
Q

Yersinia reservoir?

A

Pork

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13
Q

EHEC reservoir?

A

Ground beef

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14
Q

Salmonella reservoir?

A

Eggs

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15
Q

V. cholerae reservoir?

A

Water

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16
Q

Campylobacter reservoir?

A

Chicken

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17
Q

V. parahaemolyticus reservoir?

A

Shellfish

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18
Q

S. aures reservoir?

A

Room temp dairy

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19
Q

B. cereus reservoir?

20
Q

Anemia and thrombocytopenia?

A

EHEC O157:H7 or Shigella dysentariae

21
Q

Ascending paralysis

A

Campylobacter

22
Q

Massive watery diarrhea w/ dehydration and death in all ages

A

V. cholerae

23
Q

Severe skin/soft tissue infxn w/ spetic shick

A

V. vulnificus or C. perfringens

24
Q

Tx of Shigella?

A

Shorten course, reduce shedding. Ceftriaxone, Cipro, Azithro

25
Q

Tx of Salmonella entertitis

A

Only if immunocompromised. Fluoros

26
Q

C. diff Tx

A

Flagyl or PO Vanc

27
Q

V. cholerae Tx

A

Oral rehydration

28
Q

V. vulnificus Tx

A

Doxy + 3rd gen cephalosporin

29
Q

Campylobacter Tx

A

Only if dz is severe w/ cipro/azith

30
Q

EHEC Tx

A

No Abx, causes more toxin induction

31
Q

Key things abt clostridia sp?

A

Gram positive, spore forming. C. perfringens causes gas gangrene and food poisoning.

32
Q

Clostridia, Ig for tx?

33
Q

Clostridia antitoxin for tx?

A

C. botulinum

34
Q

H. pylori, tx?

A

PPI + clarith + amoxacillin

35
Q

Test tube: Y/Y

A

lactose fermentation and glucose

36
Q

Test tube: R/Y

A

glucose fermentation

37
Q

Test tube: Black

A

H2S production

38
Q

Test tube: R/R

A

No fermentation

39
Q

Test tube: Bottom gap

A

H2 production

40
Q

HDV dependent upon ____ for attachment protein

41
Q

Hepatitis in pregnant women?

42
Q

What allows us to cure HCV?

A

HCV protease activity targeting

43
Q

Which markers would indicate:

a vaccine?

44
Q

Which markers would indicate:

a resolved acute infx?

A

Anti HBs and antiHBc

45
Q

Which markers would indicate:

a low risk carrier?

A

HBsAg, anti HBc, anti HBe

46
Q

Which markers would indicate:

A high risk carrier?

A

HBsAg, HBeAg, HBcAg

OS4-MS/Derm/Rheum (10 decks)

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