Erysipelothrix

Question 1

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

Answer 1

gram positive

non acid fast

non spore forming

Question 2

Erysipelothrix rhusiopathiae is catalase _____, oxidase ____ and coagulase_____

Answer 2

catalse negative

oxidase negative

COAGULASE POSITIVE

Question 3

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

Answer 3

Capsule

antiphagocytic

prolongs survival in phagolysosome

Question 4

What is the most common speices affected in Erysipelothrix rhusiopathiae

Answer 4

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

Question 5

Erysipelothrix Rhusiopathiae is more opportunistic in _____ and ____

Answer 5

turkey and sheep

Question 6

What is the most important virulence factor of Erysipelothrix?

Answer 6

Neurominidase

-cleaves sialic acid and allows the bacteria to adhere

Question 7

Erysipelothrix is resistant to _____

Answer 7

drying

survive up to 6 months in swine feces

Question 8

True/False: Erysipelothrix is highly variable

Answer 8

True! over 23 serotypes. VERY VARIABLE

Question 9

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

Answer 9

fish

Question 10

How is this bacteria transmitted?

Answer 10

ingestion mainly of contaminated material

wound infections/ arthropod bites

Question 11

Pathogensis of Erysipelothrix

Answer 11

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

Question 12

True/ False: causes low mortality in swine

Answer 12

False: causes HIGH mortality rates in swine

mainly due to septic form

Question 13

What are some clinical signs in swine?

Answer 13

fever, anorexia, reluctance to walk, vomiting ect

Question 14

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

Answer 14

Diamond

due to antibody-antigen complexes

Question 15

What is the most common treatment during the acute phase?

Answer 15

Penicillin

Question 16

What can the chronic from of Erysipelothrix lead to?

Answer 16

endocarditis

arhritis - presence of bacteria in the joint tissue

Question 17

What does Erysipelothrix normally cause in birds (mainly turkeys)

Answer 17

septicemia

swollen cyanotic snood

mortality 2-25%

Question 18

What is the main presentation in sheep with Erysipelothrix?

Answer 18

Polyarthritis

Question 19

In what humans is Erysipelothrix most common?

Answer 19

fish handlers

Question 20

Best immunologic response is cell mediated and humoral directed to ______

Answer 20

neurminidase

Question 21

vaccines are effective against the ____ form of Erysipelothrix

Answer 21

acute- use penicillin

Penicilin can be used for both Swine and turkeys

Question 22

what type of culture should you use for Erysipelothrix?

Answer 22

Blood culture in CO2

usually non hemolytic

Question 23

Erysipelothrix causes gram positive slender ____

Answer 23

rods

Question 24

Erysipelothrix in culture produces _____

Answer 24

hydrogen sulfide

Question 25

How to prevent Erysipleothrix

Answer 25

reduce stress

good sanitation and nutrition

prevent fighting of turkeys