Erysipelothrix Flashcards Preview

Bacteriology Exam 1 > Erysipelothrix > Flashcards

Flashcards in Erysipelothrix Deck (22):
1

What is the shape of Erysipelothrix?

Small rods or filaments

2

Oxygen state?

Facultative anaerobes

3

Movement?

None

4

Location?

Tonsils and intestines and slime layer of fish

5

What % of healthy pigs harbor E. rhusiopathiae in tonsillar tissues?

50%

6

Can Erysipelothrix survive in the environment?

Yes

7

What animal is the most important reservoir or Erysipelothrix?

Swine

8

What is the main pathogenicity of Erysipelothrix?

Production of neuraminidase

9

What does neuraminidase do?

Cleaves sialic acid causing vascular damage and thrombus formation

10

What virulence factor helps protect against phagocytosis and allows intracellular replication?

Polysaccharide capsule

11

What virulence factor assists with adherance and invasion of endothelial cells?

Neuraminidase

12

What virulence factor assists with dissemination of bacteria within the tissues?

Hyaluronidase

13

What virulence factor helps with adhesion?

spaA surface protein

14

Swine erysipelas and diamond skin disease are the common names of which E. species?

E. rhusiopathiae

15

Diamond-shaped skin lesions that are pathognomic for swine erysipelas

E. rhusiopathiae

16

Symptoms specific to one singular disease

Pathognomic

17

What age of pigs are most susceptible to E. rhusiopathiae?

Pigs 3 mo. to 1 yr. old

18

What causes clinical cases to occur?

Stress

19

Treatment for E. rhusiopathiae

Penicillin or tetracycline

20

What is E. rhusiopathiae resistant to?

Vancomycin, aminoglycosides, sulfonamides

21

Occupational hazard for people who work in fish, poultry, or swine industry

Erysipeloid in humans

22

What causes human erysipelas infection?

Streptococci bacteria