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Bacteriology (Exam 2) > Yersinia > Flashcards

Flashcards in Yersinia Deck (26):
1

Which types of Yersinia are zoonotic?

Y. pestis

Y. psuedotuberculosis

Y. enterocolictica

2

Which genus of Yersinia is a fish pathogen?

Y. ruckeri

3

Yersinia is a gram ______ bacteria.

Negative

4

Which type of Yersinia is responsible for the bubonic plague?

Y. pestis

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5

Which domestic animal is Y. pestis most commonly seen in?

Cats

6

True/False. Cat and dog fleas transmit the diseases caused by Y. pestis.

False. 

Cat and dog fleas don't transmit the disease since their proventriculus do not get blocked during bacterial replication. 

Common in RAT FLEAS!

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7

Which months of the year would you see less transmission of Y. pestis?

The summer months. At temps above 27C pestis does not produce this coagulase and does not block the proventriculus.

8

What does the cell wall of Y. pestis lack that would make it a "rough phenotype"?

No O-antigen

9

Which virulence factor is unique to Y. pestis?

The capsule

10

Which toxin that is unique to Y. pestis protects the bacteria from digestive enzymes of fleas?

Ymt (Yersinia mouse toxin)

11

Which toxin unique to Y. pestis has degradative activity on coagulase, fibrinoytic and C3?

Plasminogen activator

12

What stain would you use to diagnosis Y. pestis?

Geisma stain

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13

What are the plagues caused by Y. pestis?

 

Bubonic plague (lymph nodes)

Septicemic plague (DIC)

Pnuemonic plague (pneumonia)

Ocular plague (deer mule - case study)

14

True/False. Y. pestis is highly antimicrobial resistant.

False. It is rarely resistant. 

15

What organs are typically infected with Y. psuedotuberculosis?

Intestine, abdominal lymphnodes, liver, spleen and septicemia

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16

Which genus of Yersinia causes mastitis in cattle?

Y. pseudotuberculosis

17

Which species does Y. pseudotuberculosis typically infect?

Birds and rodents

Occasionally in domestic animals (cats) and primates

18

Which cells does Y. pseudotuberculosis typically targe for adherence?

M cells and basolateral ileal epithelial cells

19

How is Y. pseudotuberculosis transmitted?

Ingestion

20

True/False. Animals that survive Y. pseudotuberculosis have a natural aquired immunity.

True

21

Which Yersinia causes abortions in ruminants and monkeys?

Y. pseudotuberculosis

22

What months of the year does Y. pseudotuberculosis tend to occur?

Colder months

23

Which Yersinia is mainly in domestic animals and primates?

Yersinia entercolitica

24

What diease pattern will Y. enterocolitica cause in domestic animals?

Ileitis, gastroenteritis and mesenteric lymphadenitis

25

Which genus of Yersinia cause an outbreak of blood diarrhea in African Green Monkeys?

Y. enterocolitica

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26

Which genus of Yersinia causes enteric red-mouth disease?

Y. ruckeri

Systemic bacterial illness of slamonids