Lecture 21 AIDS Flashcards
More than 2 Billion people have died of HIV, T/F?
False, you cannot die from HIV, only from its opportunistic infections
Koch’s postulates for HIV as the cause of AIDS are?
- cause associated with disease
- pathogen can be isolated/grown out of host
- pathogen transmits to others
The first case of HIV was where?
Congo in Kinsasha
What is the msot common form of HIV? Which one is Africa containted?
HIV1 most common, HIV2 west africa
Origin of HIV1 is
chimpanzees
Origiin of HIV2 is
sooty manganeeze monkey
The mechanism of HIV is:
depletion of CD4 helper T cells, and then Ols infection happens
Describe acute HIV phase
asymptomatic or flu/mono symptom, 2-8 wk, negative by antibody test, high viral load
Describe the asymptomatic stage of HIV
HIV pos with detectable antibodies, years, heavy destruction of immunity/CD4
How long is the normal progression of HIV caused AIDS? What about slow and fast
5-10 years, slow is 10-20 and fast is 2-3
What type of virus is HIV?
retrovirus, 2 RNA molecules and lipid membrane
What are the HIV viral proteins?
Pol, Gag, Env
The early risk coreceptor for HIV is
CCR5 (but isn’t essential)
A polymerase makes mistakes in HIV (drift/Shift)?
Shift
Within 24 hrs, how many variations does HIV make?
10 Billion