Erysipelothrix Flashcards Preview

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Flashcards in Erysipelothrix Deck (25):
1

Erysipelothrix Rhusiopathiae is gram _____, ____ acid fast and ____ spore forming

gram positive

non acid fast

non spore forming 

2

Erysipelothrix rhusiopathiae is catalase _____, oxidase ____ and coagulase_____

catalse negative

oxidase negative

COAGULASE POSITIVE 

3

Erysipelothrix rhusiopathiae produces a ____ that allows for intracellular survival as well as survival in the environment 

Capsule 

antiphagocytic 

prolongs survival in phagolysosome 

4

What is the most common speices affected in Erysipelothrix rhusiopathiae 

Swine- important to the swine industry

pigs less than 3 month and over 3 years are LESS susceptible 

mainly in production animals due to the stress associated with the production

5

Erysipelothrix Rhusiopathiae is more opportunistic in _____ and ____

turkey and sheep 

6

What is the most important virulence factor of Erysipelothrix?

Neurominidase 

-cleaves sialic acid and allows the bacteria to adhere 

7

Erysipelothrix is resistant to _____

drying

survive up to 6 months in swine feces

8

True/False: Erysipelothrix is highly variable

True! over 23 serotypes. VERY VARIABLE 

9

Erysipelothrix is part of the common flora on the skin surface of ___

fish 

10

How is this bacteria transmitted?

ingestion mainly of contaminated material

wound infections/ arthropod bites 

11

Pathogensis of Erysipelothrix 

1. bacteria is exposed and capsule and neurominidase is expressed to allow for survival in phagocytes

2. Start binding to endothelium- vascular damage and thrombus

3. survival inside phagocytes 

4. If not taken in, can disseminated and cause septicemia. important in heart and joints and you can see endocarditis 

 

12

True/ False: causes low mortality in swine

False: causes HIGH mortality rates in swine 

mainly due to septic form 

13

What are some clinical signs in swine?

fever, anorexia, reluctance to walk, vomiting ect

14

Swine develop _____ skin disease which is very common and seldom results in mortality 

Diamond 

due to antibody-antigen complexes 

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15

What is the most common treatment during the acute phase?

Penicillin 

16

What can the chronic from of Erysipelothrix lead to?

endocarditis

arhritis - presence of bacteria in the joint tissue 

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17

What does Erysipelothrix normally cause in birds (mainly turkeys)

septicemia 

swollen cyanotic snood 

mortality 2-25% 

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18

What is the main presentation in sheep with Erysipelothrix?

Polyarthritis 

19

In what humans is Erysipelothrix most common?

fish handlers 

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20

Best immunologic response is cell mediated and humoral directed to ______

neurminidase 

21

vaccines are effective against the ____ form of Erysipelothrix 

acute- use penicillin 

Penicilin can be used for both Swine and turkeys 

22

what type of culture should you use for Erysipelothrix?

Blood culture in CO2

usually non hemolytic 

23

Erysipelothrix causes gram positive slender ____

rods 

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24

Erysipelothrix in culture produces _____

hydrogen sulfide 

25

How to prevent Erysipleothrix

reduce stress 

good sanitation and nutrition 

prevent fighting of turkeys