9. Family Enterobacteriaceae (II) Flashcards Preview

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Flashcards in 9. Family Enterobacteriaceae (II) Deck (16):
1

Disease caused by Y. enterocolitica

Gastroenteritis (may resemble appendicitis)

2

Temperature for Yersinia spp. to grow on media

25-30°C

3

Appearance of Yersinia spp. on MAC agar

Small
Lactose-negative colonies

4

Agar that may be used instead of MAC for Yersinia spp.

Cefsulodin-irgasan-novobiocin (CIN) agar

5

Colony morphology of Yersinia spp. on CIN agar

Pink colonies
With red center

6

TSI characteristics of Yersinia spp.

Acid/acid
No gas

7

Hemolysis characteristics of Plesiomonas shigelloides on blood agar

No hemolysis

8

Lactose fermentation of P. shigelloides

Non-lactose fermenter

9

Oxidase reaction of P. shigelloides

Oxidase positive

10

Indole reaction of P. shigelloides

Indole positive

11

Lactose positive Enterobacteriaceae

Serratia
E. coli
Enterobacter
Citrobacter
Klebsiella

SEECK

12

Lactose negative Enterobacteriaceae

Proteus
Hafnia
Edwardsiella
Morganella
Providencia

13

Differentiate E. coli, C. jejuni and V. cholerae based on findings in stool specimen

E. coli: bloody stool, no WBCs
C. jejuni: bloody stool, high WBC count
V. cholerae: no blood, no WBCs (Rice water stools)

14

Differentiate Vibrio, Aeromonas and Plesiomonas based on reservior

Vibrio: fresh, brackish, saltwater
Aeromonas: saltwater
Plesiomonas: freshwater

15

Nonmotile Enterobacteriaceae

Shigella spp.
Klebsiella spp.
Yersinia enterocolitica

16

Yersinia spp. that causes plague

Yersinia pestis