9- Importance and examples of viral disease

Question 1

List 2 reasons why viral diseases are important

Answer 1

Economic importance
Zoonoses
Emerging diseases
Notifiable diseases

Question 2

Give an example of a endemic disease (virus)

Answer 2

Calf respiratory disease - is a multifactorial disease

Question 3

What causes calf respiratory disease

Answer 3

mixed infections typically- viruses and bacteria
IBR, RSV, Pi3V

Question 4

Which viruses make up cat flu

Answer 4

calcivirus, herpesvirus

Question 5

When does feline infectious peritonitis occur

Answer 5

Sequel to feline enteric coronavirus is some cats
Pathogenesis unclear

Question 6

Describe Malignant catarrhal fever

Answer 6

occurs in cattle
caused by OHV2
Virus infection in dead-end host

Question 7

List 2 reasons why viral diseases are of economic importance

Answer 7

costs associated with loss of production
culling
banning of imports/ exports
cost of control

Question 8

List 2 examples of viral zoonotic diseases

Answer 8

Hantaviruses (rodent urine)
Louping ill virus (very rare)- in sheep
European Bat Lyssavirus (EBLV2)

Question 9

Give an example of an exotic disease

Answer 9

Avian influenza- H5N1 currently