Erysipelothrix

Question 1

Causative agent of swine erysipelas in young pigs

Answer 1

Erysipelothrix rhusiopathiae

Question 2

Diseases caused by Erysipelothrix rhusiopathiae

Answer 2

1. Diamond skin disease
2. Septicemia
3. Polyarthritis
4. Endocarditis
5. Abortion (swine, cattle, sheep, turkey, ducks)
6. Skin lesions in humans (Erysipeloid)

Question 3

True or False,

Cell wall of E. rhusiopathiae has no DL-Diaminopimelic acid

Answer 3

True

Question 4

Forms of Disease caused by E. rhusiopathiae

Answer 4

1. Acute
2. Less severe
3. Severe Septicemic Phase
4. Chronic Form
5. Arthritic Form

Question 4

What form of disease is characterized by urticarial lesions to red rhomboidal blotches in abdomen

Answer 4

Less severe form

Question 5

This form of disease causes high fever and deep red patches on skin

Answer 5

Acute form

Question 6

What type of hemorrhage is found in kidneys of an acute form of disease

Answer 6

Ecchymotic

Question 7

This form of disease is characterized by increased RBC destruction, decreased Hb and PCV

Answer 7

Severe Septicemic Phase

Question 8

This form of disease is characterized by vegetative endocarditis

Answer 8

Chronic Form

Question 9

This form of disease causes an enlargement in joints, stunted growth, and stilted gaits

Answer 9

Arthritic Form

Question 10

Disease caused by E. rhusiopathiae in sheep

Answer 10

Polyarthritis

Question 11

Disease caused by E. rhusiopathiae in birds

Answer 11

Blue comb (Cyanotic skin), massive hemorrhage

Question 12

Disease caused by E. rhusiopathiae in Cattle

Answer 12

Arthritis: tibiotarsal, stifle, carpal joints

Question 13

Symptoms/Clinical signs of Hog Cholera

Answer 13

• Lethargy
• Diarrhea
• Doesn’t eat
• hemorrhagic lymph node
• petechiae in subserosaS

Question 14

Symptoms/Clinical signs of Erysipelas

Answer 14

• Bright and alert
• enlarged bluish-red spleen
• Lymph node not congested
• Ecchymoses

Question 15

Causative agent of Human Erysipeloid

Answer 15

Hemolytic streptococci spp.

Question 16

True or False,

E. rhusiopathiae is a facultative intracellular parasites with high survival rate from pig’s macrophages

Answer 16

Also true, as it kills phagocytes

Question 17

True or False,

E. rhusiopathiae cannot be found on alkaline soil

Answer 17

False, it is found in alkaline soil

Question 18

True or False,

Erysipelothrix rhusiopathiae has flagella but no spores

Answer 18

False, it has no flagella and spores

Question 19

Aquatic animals considered to be highly susceptible to E. rhusiopathiae

Answer 19

Crocodile & Bottlenose Dolphin