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Microbiology > Enterobacteriaceae > Flashcards

Enterobacteriaceae Flashcards

1
Q

TSI yellow/yellow

A

glucose and lactose fermented

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2
Q

TSI red/yellow

A

glucose fermented lactose not

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3
Q

TSI red/black

A

glucose fermented lactose not H2S production

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4
Q

TSI red/red

A

no carbohydrate fermented

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5
Q

O somatic antigen

A

cell wall antigen

heat stable

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6
Q

K envelope antigen

A

capsule antigen

heat labile

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7
Q

H flagellar antigen

A

flagella antigen

heat labile

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8
Q

Enterotoxigenic E coli (ETEC)

A

produces enterotoxin - Travelers diarrhea

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9
Q

Enteroinvasive E coli (EIEC)

A

invade cells of the colon

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10
Q

Enteroaggregative E coli (EAEC)

A

aggregative adherence to epithelial cells - diarrhea in children in developing and developed countries

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11
Q

Enteropathogenic E coli (EPEC)

A

localized adherence to epithelial cells - important cause of diarrhea in developing countries

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12
Q

Shigella dysenteriae

A

serogroup A

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13
Q

Shigella flexneri

A

serogroup B

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14
Q

Shigella boydii

A

serogroup C

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15
Q

Shigella sonnei

A

serogroup D

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16
Q

ESKAPE

A 
Enterococcus faccium
Staph aureus
Kleb pneumo
Acinetobacter baumanii
Pseudomonas aeruginosa
Enterobacter cloacae
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17
Q

ESKAPE function

A

nosocomial pathogens that are often multi drug resistance and have increased virulence

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18
Q

Yersinia pestis

A

causative agent of plague
fried egg colony
agent of bioterrorism

19
Q

Bubonic plague

A

most common in US
swelling of lymph nodes close to portal of entry with hematogenous spread of bacteria to other organs and tissues causing intravascular coagulation and endotoxic shock if left untreated (75%)

20
Q

Pneumonic plague

A

usually secondary but may also result from direct exposure to respiratory secretions from another pneumonic patient or infected cats
fever, cough followed by intravascular coagulation and endotoxic shock if left untreated (90%)

21
Q

Septicemic plague

A

direct infection of the bloodstream by flea bite or spread from lymph nodes
high fever, seizures followed by intravascular coagulation, endotoxic shock and death
black hemorrhagic splotches develop - Black Death

22
Q

Yersinia enterolitica

A

CIN agar forms bullseye appearance

23
Q

Non lactose fermenters

A 
proteus/morganella
edwardsiella
providencia
salmonella
shigella
erwinia
yersinia
24
Q

H2S (+)

A

salmonella
proteus
edwardsiella
citrobacter

25
Q

Motility (-)

A

klebsiella
yersinia
shigella

26
Q

Urea (+)

A

Vparahaemolyticus
proteus/providencia/morganella
citrobacter
yersinia

27
Q

Citrate (+)

A 
proteus/providencia
enterobacter
citrobacter
klebsiella
salmonella
serratia
28
Q

E coli ID

A 
Indole (+)
Methyl red (+)
Lysine (+)
29
Q

Edwardsiella ID

A

Indole (+)
Methyl red (+)
Lysine (+)
Ornithine (+)

30
Q

Morganella ID

A

Indole (+)
Methyl red (+)
Ornithine (+)
PDA(PEA) (+)

31
Q

Proteus vulgaris ID

A 
Indole (+)
Methyl red (+)
PDA(PEA) (+)
32
Q

Proteus mirabilis ID

A

Ornithine (+)

PDA(PEA) (+)

33
Q

Providencia ID

A

Indole (+)
Methyl red (+)
Citrate (+)
PDA(PEA) (+)

34
Q

Citrobacter koserii ID

A

Indole (+)
Methyl red (+)
Citrate (+)
Ornithine (+)

35
Q

Citrobacter freundii ID

A

Methyl red (+)
Citrate (+)
Arginine (+)

36
Q

Klebsiella oxytoca ID

A

Indole (+)
VP (+)
Citrate (+)
Lysine (+)

37
Q

Klebsiella pneumoniae ID

A

VP (+)
Citrate (+)
Lysine (+)

38
Q

Enterobacter aerogenes ID

A

VP (+)
Citrate (+)
Lysine (+)
Ornithine (+)

39
Q

Enterobacter cloacae ID

A

VP (+)
Citrate (+)
Arginine (+)
Ornithine (+)

40
Q

Serratia marscescens ID

A

VP (+)
Citrate (+)
Lysine (+)
Ornithine (+)

41
Q

Salmonella ID

A

Methyl red (+)
Citrate (+)
Lysine (+)
Ornithine (+)

42
Q

Shigella ID

A

Methyl red (+)

43
Q

Yersinia ID

A 
Methyl red (+)
Ornithine (+)*

Microbiology (37 decks)

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