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Flashcards in Virus Test Questions Deck (27):
1

What virus is the cause of the common cold

picornavirus - Rhinovirus

2

Infection with which virus will lead to opportunistic infections of the host

HIV

3

What is the structure or the influenza virus

RNA
Helical
Enveloped
Single Stranded
8 segments

4

How does influenza virus kill you

causing the immune system to overreact

5

What virus has the gaped DNA genome

Hepadena (HEP B)

6

What are the targets for antiviral drug intervention

Viral absorption
penetrating and uncoating
Viral Nucleic Acid Synthesis
Binding To intact virus particle
Virus release

7

What is Antigenic shift

When multiple flu viruses get into a single cell, and the 8 segments get mixed up which results in a flu virus that humans have no immunity against

8

What is antigenic drift

When a large number of mutations has occurred in the genome of a flu virus, causing it to be changed

9

what do antigenic shift and antigenic drift cause

antigenic shift causes a pandemic
antigenic drift causes a epidemic

10

What is an icosahedron

20 equilateral triangles
30 edges
12 vertices

11

What are the four important TLRs for viral detection, what do they detect, and what do they cause to be synthesized

TLR 3 - double stranded RNA - (IFN-B)
TLR 7&8 - Single stranded viral RNA - (IFN-a)
TLR 9 - Unmethylated CpG - (IFN-a)

12

What is the CDC recommendation for disinfecting a norovirus contamination

Chlorine Bleach at 1000-5000 ppm

13

Which herpes virus strands are found in the oral cavity

HSV-1
HSV-2
EBV
CMV

14

What is the recommended flu vaccine for 2016

A California 2009
A Switzerland 2013
B Phuket 2013

15

Which virus kills by causing the immune system to overreact

influenza

16

which virus kills by inhibiting the immune system

Ebola

17

What is a virion

an infectious virus particle

18

What are the steps for replication of viruses

1. Attachement
2. Penetration
3. Uncoating
4. early Transcription
5. early translation
6. genome replication
7. late transcription
8. late translation
9. assembly
10. release

19

What is the viral family of HEP B

hepadenaviriae

20

What is the viral family of HEP C

flaviviridiae

21

What is the viral family of HEP A

Picornaviridiae

22

What is a primary infection of Herpes like

it is the initial herpes infection, usually in children, and its symptoms are sores around the mouth (chicken pox)

23

What is a secondary infection of herpes

after the infection has gone into the latent stage (no symptoms) it will all the sudden come back to different areas of the body. the reemergence of the infection is the secondary infection (cold sores, mono, shingles)

24

Which herpes virus can be prophalactically treated with a vaccine

HSV-2

25

Which viruses can lead to lesions in the oral cavity

Herpes
HPV
Paramyxoviridiae (measles)

26

can a person with shingles (secondary herpes infection) infect another person with chicken pox (primary herpes infections)

yes

27

T or F, saliva is not highly infectious for HIV (Is saliva anti-HIV)

True (it is anti-HIV)