Rhabdoviridae

Question 1

Rhabdoviridae general characteristics

1. genetic material
2. enveloped?
3. viruses

Answer 1

1. ssRNA
2. enveloped (not stable in envt)
3. viral hemorrhagic septicemia virus, spring viremia of carp virus, rabies

Question 2

Viral Hemorrhagic Septicemis Virus (VHSV)

1. types of dz virus causes
2. method of transmission
3. zoonotic?
4. does it change/recombine/mutate
5. distribution
6. diagnosis
7. differential diagnosis
8. control

Answer 2

1. listless, swim in circles just below surface, hemorrhaging of skin, eyes, organs
2. vertical trans on surface of egg or horiz
3. not zoonotic
5. worldwide in marine fish
6. diagnosis via appearance- EM, PCR
7. dd= spring viremia of carp, koi herpes virus
8. clean boats, moniter fish entering country?

Question 3

Spring Viremia of Carp Virus (SVCV)

1. types of dz virus causes
2. method of transmission
3. zoonotic?
4. does it change/recombine/mutate
5. distribution
6. diagnosis
7. differential diagnosis
8. control

Answer 3

1. abdominal distension, petechial hemorrhage of skin, gills, and eyes
2. horizontally through water and by vectors- birds and leeches
3. not zoonotic
5. europe, asia, usa
7. dd= viral hemorrhagic septicemia, koi herpes,
8. moniter boats, importation?

Question 4

Rabies

1. types of dz virus causes
2. method of transmission
3. zoonotic?
4. does it change/recombine/mutate
5. distribution
6. diagnosis
7. differential diagnosis
8. control

Answer 4

1. loss of appetite, anxiety, insomnia, restlessness, hypersensitivity, hydrophobia, inability to swallow
2. transmitted through bite or scratch, lots of virus in saliva
3. Zoonotic
5. worldwide
6. diagnosis- postmortem brain for negri bodies
8. vaccinate