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Flashcards in The Rest of the RNA Viruses Deck (12):
0

What are the 2 viruses that belong to TOGAviridae?

1. Alpha virus
2. Rubivirus

1

What does alpha virus include?

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

2

What is the morphology of TOGAviridae?

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

3

Is there a vector for Alpha virus?

Yes - mosquitos.

4

Is there a vector for Rubivirus?

No - spread by respiratory secretions.

5

What are the WEE, EEE, VEE symptoms?

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

6

What are the chikungunya symptoms?

1. Initially: fever, rash, joint pain.
2. Chronic arthritis.

7

What happens in rubella (3 day measles)?

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.

8

What genus/species are included in FLAVIviridae?

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

9

What is the morphology of FLAVIviridae?

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

10

Is there a vector for FLAVIviridae?

Vector=mosquito.

11

What can FLAVIviridae cause?

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.