The Rest of the RNA Viruses

Question 0

What does alpha virus include?

Answer 0

1. Western equine encephalitis (WEE)
2. Eastern equine encephalitis (EEE)
3. Venezuelan equine encephalitis (VEE)
4. Chikungunya virus

Question 1

What are the 2 viruses that belong to TOGAviridae?

Answer 1

1. Alpha virus

2. Rubivirus

Question 2

What is the morphology of TOGAviridae?

Answer 2

1. Positive single-stranded RNA
2. Non segmented
3. Icosahedral symmetry
4. Replicates in cytoplasm
5. Enveloped

Question 3

Is there a vector for Alpha virus?

Answer 3

Yes - mosquitos.

Question 4

Is there a vector for Rubivirus?

Answer 4

No - spread by respiratory secretions.

Question 5

What are the WEE, EEE, VEE symptoms?

Answer 5

1. Headache and fever
2. Altered level of consciousness
3. Focal neurologic deficits

Question 6

What are the chikungunya symptoms?

Answer 6

1. Initially: fever, rash, joint pain.

2. Chronic arthritis.

Question 7

What happens in rubella (3 day measles)?

Answer 7

1. Fever, lymphadenopathy, and mid flu-like symptoms.
2. Rash: from forehead to face to torso to extremities (lasts 3 days).
3. Congenital defects: occurs when women in her first trimester of pregnancy gets exposed.

Question 8

What genus/species are included in FLAVIviridae?

Answer 8

1. Yellow fever virus
2. Dengue virus
3. St.Luis encephalitis
4. Japanese encephalitis
5. HCV
6. West Nile virus

Question 9

What is the morphology of FLAVIviridae?

Answer 9

1. Positive single-stranded RNA
2. Nonsegmented RNA
3. Icosahedral symmetry
4. Replicates in the cytoplasm
5. Enveloped

Question 10

Is there a vector for FLAVIviridae?

Answer 10

Vector=mosquito.

Question 11

What can FLAVIviridae cause?

Answer 11

1. Yello fever
2. Dengue fever
3. St.Louis, Japanese, West Nile encephalitis and fever
4. Hep C
5. West Nile: fever, meningitis, encephalitis or myelitis that produces flaccid paralysis.