HIV and AIDS Flashcards
week 3
Which type of HIV is most pathogenic?
HIV-1
Zoonisis =
transmitted from animals - humans
What type of virus is HIV?
retrovirus
Genome of HIV
+ve RNA
Does HIV have an envelope?
Yes
How does HIV enter cell?
gp120 binds to cd4 and ccr5
Acute HIV syndrome =
wide dessemination of virus. seeding of lyphoid organs
What period comes after acute HIV syndrome?
clinical latency
What originally drives down viral load?
CD8 cells
On average, how long does it take to develop clinical immunodeficiency
6-8 years
CD4 count for AIDs
<200
AIDS associated infections (<200)
pneymocystis pneumonia
toxoplasmosis
oesophageal candida
AIDS associated infections (<100)
mycobacterium avium intracellulare
cytomegalovirus
Cancer associated with AIDS
Kaposi’s sarcoma
What causes pneumocystis pneumonia
yeast-like fungus pneumocystis jirovecii
What does toxoplasmosis effect?
CNS
What does CMV lie latent in?
Retinal epithelium, causes CMV retinits/pizza pie retinitis
Abacavir
NRTI
Tenofovir
NRTI
Lamivudine
NRTI
Emtricitabine
NRTI
What is in the name of NNRTIs?
vir in middle
Nevirpine
NNRTI
Etravirine
NNRTI
Suffix of PIs
-navir (navir tease a pro)
Atazanaivr
Protease inhibitor
What is a boosting agent used with?
Protease inhibitors
Ritonavir
Boosting agent
Maraviroc
CCR5 inhibitor
enfurvitide
fusion inhibitor
What do integrase inhibitors have in the name
tegr in the middle
Raltegravir
Integrase Inhibitor
Elvitegravir
Integrase inhibitor
When is ART recommended?
- pregnancy
- all infected
Rules of ART
- need baseline CD4 and viral load
- Measure serology
- Resistance profile
HLA-B5701 is a predictor of what?
Abacavir hypersensitivity
Class used for post-exposure prophylaxis
NRTI
Truvada is used for
PrEP
Truvada is a mix of
tenofovir, emtricitabine
U = U
undetectable = untransmissible