HIV+class+notes

HIV

- A virus with no cure - Can get it from needles, breast milk, semen, vaginal fluids and transferring of blood - Affects the immune system - Condems prevent transmission - Affects appetite, "wasting disease" - Can treat it but can't cure it - In the US more males than females have it - More than a million people in the US have it - It can be asymptomatic- can have it without knowing

Question

How did it start in first person? Believe it came from Apes

How long can someone live with HIV? Every case is different, in the begining, about ten years

What does HIV stand for? Human Immuno deficiency virus

Is anyone working on a cure? No, there is no cure for a virus, There are people with cells that can't get infected

How do treatments work? The drugs stop the virus from copying itself

How old are most people that get HIV? 25 is the average age

Are the numer of cases in the US increasing or decreasing?

What does the treatment entail? vaccines

Is it increasing or decreasing in the U.S.?

Side effects of medicine? Nausea, Diarrhea, Tiredness, Difficulty sleeping

Are treatments to prevent AIDS of after AIDS starts? To prevent AIDS

What is the difference between HIV and AIDS? One is the virus and the other is the condition

How do you know if you have it? You get a blood test

Why does HIV affect the immune system?

Graph 1 Time (weeks or years) vs. Helper T cells CCD4

Symptoms - unusual cancers caused by viruses - pneumonia- (lung infection) Cause - flu-like symptoms after the first weeks - can be HIV positive for years - helper t-cells decrease over time - considered to have AIDS if have less than 200 Helper T cells/ml of blood 1. help killer t cells 2. help b cells make antibodies Pathophys Diagnosis Trans. and Prev. Treatment - drugs that slow virus replication (copying)

Epidemiology - 33.2 million are living with HIV - new infections- 1.5 million - Of the 33 million, 22 are in the sub Sahara Africa - 96% are in low and middle income countries - about 1200 are children under 15 - 50% are women - 40% are young people

Prognosis History - very similar virus found in chimpanzees (live in Sub Saharan Africa) - First reported in 1981 in the U.S. when it was found in five homosexual men in Los Angeles