Topic 58 - Epizootic haemorrhagic disease

Question 1

Causative agent of epizootic haemorrhagic disease:

Answer 1

Orbivirus genus, reoviridae family

Question 2

Susceptible species of epizootic haemorrhagic disease:

Answer 2

Wild deer

And also cattle

Question 3

Occurence of epizootic haemorrhagic disease

Answer 3

USA

Also found in Europe in:
- Spain
- Portugal
- France
- Switzerland
- Italy

Question 4

How many serotypes does epizootic haemorrhagic disease have?

Answer 4

At least 7

Question 5

Does epizootic haemorrhagic disease need vectors? if yes, which vectors?

Answer 5

Yes

Mosquitos and midges

Question 6

Is epizootic haemorrhagic disease a notifiable disease?

Answer 6

yes

Question 7

Which damage can we see in epizootic haemorrhagic disease?

Answer 7

Endothel damage, similar to bluetongue

Question 8

Name a disease that is caused by one of epizootic haemorrhagic disease serotypes:

Answer 8

Ibaraki disease

Question 9

Is Ibaraki disease a notifiable disease?

Answer 9

yes

Question 10

occurence of Ibaraki disease:

Answer 10

First described in Japan, but later present in South-East Asia and in the USA

Question 11

Susceptible species of Ibaraki disease:

Answer 11

Cattle

Question 12

Clinical signs of Ibaraki disease:

Answer 12

Similar to bluetongue disease

Question 13

Are vaccines available for Ibaraki disease?

Answer 13

yes, in endemic areas

Question 14

Type of vaccine against Ibaraki disease?

Answer 14

Attenuated vaccine

Question 15

Differential diagnosis of Ibaraki disease:

Answer 15

1. Bluetongue
2. Acabane disease
3. Ephemeral fever