Lecture 13

Question 1

Name a characteristic feature of an arbovirus:

Answer 1

Replication that occurs within the arthropod host

Question 2

Humans are an accidental host of the virus Murray valley encephalitis, what two hosts does this parasite usually alternate between?

Answer 2

Normally alternates between water birds and mosquitos

Question 3

What is the amplifying host of Japanese encephalitis virus?

Answer 3

The pig

Question 4

Name a clinical feature of arboviruses:

Answer 4

Often appear to be asymptomatic in nature

Question 5

Why is Rift Valley fever a unique arbovirus?

Answer 5

Does not require it’s arthropod host (the mosquito) for transmission

Question 6

What type of arbovirus is Ross river virus?

Answer 6

Alphavirus

Question 7

What is the natural host of Ross river virus?

Answer 7

Wallabies and Kangaroos

Question 8

What type of arbovirus is West Nile virus?

Answer 8

flavivirus

Question 9

Rift valley fever virus and arkabane virus are both types of what arbovirus:

Answer 9

Bunyavirus

Question 10

Where about are Blue Tongue Viris and Bovine Epheremal fever normally located and why do they rarely infect sheep?

Answer 10

Northern Australia. All of out sheep are located down south