MT4 - Respiratory pasteurellosis of cattle (W)

Question 1

Pasteurella bovis can cause pasteurellosis in cattle

Answer 1

F

- P. multocida A, (D), M. haemolytica A1, A2

Question 2

Diarrhoea is the main clinical sign of bovine pasteurellosis

Answer 2

F

fever, anorexia, nasal/ ocular discharge , death

Question 3

Overcrowding is a predisposing factor of respiratory pasteurellosis of cattle

Answer 3

T

• transportation
• starvation, cold, thirst
• nutrition, overcrowding

Question 4

The lesions of respiratory pasteurellosis of calves are generally in the diaphragmatic lobes

Answer 4

F

mainly in the anterior lobes ( fibrinous pneumonia)

Question 5

Dermonecrotoxin of the agents is responsible for the clinical signs of respiratory pasteurellosis of cattle

Answer 5

F

in swine

Question 6

Primary pasteurellosis diseases are caused by obligate pathogenic Pasteurella bacteria

Answer 6

F

facultatively anaerobic: they can survive with or without oxygen

Question 7

Respiratory pasteurellosis occurs only among cattle above 6 months of age

Answer 7

F

1-3 months (endemic form)

Question 8

Toxoid vaccines can be used for the prevention of respiratory pasteurellosis of cattle

Answer 8

T

Toxoid vaccines (M. haemolytica)
killed vaccines: (P. multocida, M. haemolytica, H. somni)

Question 9

The lesions of respiratory pasteurellosis of calves are generally in the diaphragmatic lobes

Answer 9

F

mainly in the anterior lobes ( fibrinous pneumonia)

Question 10

Pasteurella multocida can cause pasteurellosis in cattle

Answer 10

T

* P. multocida A, (D), M. haemolytica A1, A2

Question 11

mannheimia haemolytica can cause respiratory pasteurellosis of calves

Answer 11

T

* P. multocida A, (D), M. haemolytica A1, A2

Question 12

Mannheimia haemolytica can cause pasteurellosis in cattle

Answer 12

T

* P. multocida A, (D), M. haemolytica A1, A2

Question 13

Respiratory pasteurellosis can occur after transport.

Answer 13

T

• starvation, cold, thirst
• nutrition, overcrowding
• transportation

Question 14

Mannheimia haemolytica is an important agent of shipping fever

Answer 14

T

Question 15

Leukotoxin of M. haemolytica damages the alveolar macrophages

Answer 15

T

M. haemolytica
- cytotoxin production–> damage of the macrophages
- production of prostaglandin, mediators
- formation of thrombi, necrosis

Question 16

Interstitial pneumonia is a frequent post mortem lesion of pulmonary pasteurellosis of
cattle

Answer 16

F

Fibrinous Pneum

Question 17

The pneumonic lesions in the case of pulmonary pasteurellosis of cattle can be seen mainly
in the diaphragmatic lobe.

Answer 17

F

mainly in the anterior lobes ( fibrinous pneumonia)

Question 18

Salmonellosis can predispose cattle to pasteurellosis

Answer 18

F

infectious predisposing factors:
- virus infections (PI-3, IBR, adenoviruses, RS, BVD)
- Mycoplasma, Chlamydia

Question 19

Transportation can predispose cattle to pasteurellosis

Answer 19

T

• transportation
• starvation, cold, thirst
• nutrition, overcrowding

Question 20

Bovine pasteurellosis cannot be prevented with vaccination.

Answer 20

F

• toxoid vaccines: M. haemolytica
• killed vaccines: P.multocida

Question 21

Respiratory pasteurellosis has been already eradicated in Europe

Answer 21

F

Question 22

Mannheimia haemolytica is a causative agent of respiratory pasteurellosis

Answer 22

T

Question 23

Transportation is a predisposing factor of respiratory pasteurellosis of cattle.

Answer 23

T

• transportation
• starvation, cold, thirst
• nutrition, overcrowding

Question 24

There are no vaccines for the prevention of respiratory pasteurellosis of cattle

Answer 24

F

• toxoid vaccines: M. haemolytica
• killed vaccines: P.multocida

Question 25

Mycoplasmas can predispose cattle to respiratory pasteurellosis

Answer 25

T infectious predisposing factors: - virus infections (PI-3, IBR, adenoviruses, RS, BVD) - Mycoplasma, Chlamydia

Question 26

The lesions of bovine respiratory pasteurellosis are generally seen in the diaphragmatic lobes

Answer 26

F | mainly in the anterior lobes: fibrinous pneumonia

Question 27

Respiratory pasteurellosis in cattle is caused by P. multocida A and M. haemolytica A

Answer 27

T

Question 28

Most importance virulence factor of M. haemolytica is leukotoxin

Answer 28

T Leukotoxin is responsible for damaging leukocytes (white blood cells)

Question 29

Respiratory pasteurellosis in cattle is a common disease of young animals.

Answer 29

T

Question 30

Macrolides are recommended to use in case of respiratory pasteurellosis in cattle.

Answer 30

T Treatment: - isolation of clinically ill animals - antibiotic treatment: tetracyclines, fluoroquinolones, macrolides - elimination of predisposing factors

Question 31

Respiratory pasteurellosis of cattle appears in calves aged 1-3 months old

Answer 31

T | endemic calves 1-3m adults - sporadic

Question 32

Respiratory pasteurellosis of cattle causes a fibrinous inflammation of serous membranes

Answer 32

T-A characterized by inflammation of the lungs and bronchi,

Question 33

Leukotoxin of M. haemolytica strains responsible for Pasteurella pneumonia attacks respiratory epithelium.

Answer 33

T

Question 34

Respiratory pasturellosis of cattle are mostly seen in the tropics

Answer 34

F

Question 35

Respiratory pasteurellosis of cattle causes purulent pneumonia.

Answer 35

F- A (fibrinous)

Question 36

We can use ELISA to diagnose respiratory pasteurellosis in cattle

Answer 36

T detection of the agent: * isolation, identification * IF, PCR detection of antibodies: * ELISA, immunoblot, passive HA detection of possible primary pathogens: * direct detection of the agents * serology (paired samples)

Question 37

A predisposing factor of respiratory pasteurellosis in cattle is transport.

Answer 37

T

Question 38

A predisposing factor of respiratory pasteurellosis in cattle is the presence of a viral infection.

Answer 38

T virus infections: - PI-3, IBR, adenoviruses - RS, BVD - Mycoplasma, Chlamydia

Question 39

Lesions of respiratory pasteurellosis of calves are seen in the anterior lobes

Answer 39

T

Question 40

Vaccination is widely used for prevention of bovine respiratory pasteurellosis..

Answer 40

T