HIV Flashcards

0
Q

Viruses belong to the subfamily Oncovirinae

A

HTLV1
HTLV-2
HTLV-5

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1
Q

HIV belongs to what subfamily?

A

Lentivirinae

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2
Q

gp 120- aid in the fusion and attachment of HIV to CD4+ cells

A

Env Gene

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4
Q

Other name for HIV

A

HTLV-3 (human Tcell lymphotropic virus type 3)
LAV (Lymphadenopathy associated virus)
ARV (AIDS associated retrovirus)

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5
Q

Most common subtype of Group M

A

Subtype C

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6
Q

Three layer structure of HIV

A

P24
gp41
gp120

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7
Q

HIV Naked or enveloped?
Icosahedral or complex?
With or without spikes?

A

Envelope
Icosahedral
With spikes

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8
Q

Enzyme present in Retroviridae

A

Reverse transcriptase

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9
Q

Diagnostically important proteins

A

p24
gp41
gp120
gp160

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11
Q

Transcribe RNA to DNA

A

Reverse transcriptase

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12
Q

Strains that can infect both macrophages and T cells

A

M tropic or R5

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13
Q

The three main structural gene of HIV

A

Env gene
Gag gene
Pol gene

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15
Q

Viral genetic material that is incorporated to the DNA of the host cell

A

Provirus

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16
Q

Group antigen gene that is found in nucleocapsid

A

p15
p17
p24

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17
Q

Receptor to the host

A

CD4

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18
Q

Positive dried smear of HIV remain infectious for? How about HBV smear?

A

3days

7days

19
Q

HIV viruses that preferentially infect T cells

A

T tropic or X4 strain

20
Q

Inserts viral DNA to host DNA

22
Q

Chemokine receptor of HIV required to enter T cells

23
Q

This is used to inactivate HBV and HIV

A

HBV- 10% bleach for 10mins

HIV- 10% bleach for 3mins

24
Q

First antibody to be produced following HIV infection

26
Q

Confirmatory test for HIV

A

Western blot

27
Q

Receptor to the virus

28
Q

MOT of HIV

A

Sexual
Perinatal
Parenteral

30
End stage of HIV infection
AIDS
31
Treatment for HIV that involves aggressive combination therapy
HAART | Highly active anti retroviral therapy
32
Classify HIV-1 and HIV-2 according to distribution
HIV1 global or pandemic | HIV2 west Africa
33
Testing is often done at _____, ______,&_______ after exposure to find out if a person is infected with HIV
6wks 3months 5months
34
Screening test for HIV
Elisa RIA Agglutination test
35
Chemokine receptor of HIV required to enter macrophages
CCR5
45
Cleaves structural protein located in the core near the nucleic acid
Protease
46
The three subgroups of HIV 1
Group M Group N Group O