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Flashcards in FA Respiratory pathogens Deck (17)
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1
Q

Pneumovirus

A

Bovine respiratory syncytial virus

2
Q
A

Eosinophilic multinucleated giant cells associated with BRSV.

Condition is associated with pneumonia and emphysema

3
Q

Paramyxovirys

A

Para-influenza virus

4
Q

BRSV is associated with what clinical signs?

A
5
Q

Outline the pathogenesis of PI-3.

A

Affects mucociliary escalator - ceases clearance

Epithelial necrosis

SBI

6
Q

This respiratory pathogen is associated with:

  • Bronchitis
  • Bronchiolitis
  • Alveolar hyperplasia
  • Cellular inclusion bodies
A

Parainfluenza 3

7
Q

What four pathogens are associated with the Bovine Respiratory disease complex?

What age group is usually affected?

A
  1. BHV-1 (IBR)
  2. BRSV
  3. PI-3
  4. BVD

Calves < 6mo - cough, increased respiratory rate, nasal/occular discharge, pyrexia (39.5oC)

8
Q

Jaagsiekte retrovirus

A

Ovine pulmonary adenomatosis - adenocarcinoma

9
Q

OPA results in what pathogenic changes within the lung?

A

Type 2 pneumocyte adenocarcinoma - therefore increased release of surfactant into alveolar spaces.

Clinical signs:

  • Dyspnoea
  • Overproduction of respiratory fluids
  • Wt loss
10
Q

Small ruminant lentivirus

A

Maedi Visna

11
Q

Outline the pathogenesis of Maedi Visna

A

Transmitted by inhalation or through infected colostrum - the virus infects the respiratory parenchyma causing smooth muscle hyperplasia and lymphoid infiltration

Pneumonia and wasting - FATAL

12
Q

What species are associated with Pasturellaceae? (x3)

A
  • Mannheimia haemolytica
  • Histophilus somni
  • Pasturella multocida
  • Mycoplasma ovipneumoniae
13
Q

Bacterial fibrinous pleuricy and intra-alveolar fibrinous inflammation.

A

Pasteruellaceae

14
Q

This commensal bacteria in the respiratory tract of ruminants causes pasturella associated disease.

A

Histophilus somni

15
Q

What antibiotic therapies are used in treatment of Pasturellaceae associated disease

A

Oxytetracycline

Florfenicol

Tylosin

16
Q

Atypical pneumonia in sheep

A

Mycoplasma ovipneumoniae

17
Q

What clinical signs are associated with atypical pneumonia?

A

Non-progressive chronic pneumonia

Chronic soft cough

Nasal discharge

Decreased growth rate