Questions
#1. Why is HIV virus so deadly potentially. What regulatory process is it destructing. Especially in the T cells.
#2. Are there any other diseases that behaves like HIV? That is not called HIV/AID but behaves the same way.

This post was edited by Stolem on Apr 12 2013 01:52pm

If you're able to answer the question(s) from the text, I don't see why you can't do it.
I didn't bother reading it, but I'm basing my answers off what I know and have learned.

The HIV virus is potentially deadly/dangerous because it has the chance of acquiring a disease -- AIDS -- Acquired Immunodeficiency Syndrome.
It destroys a defense cell known as CD4 Helper Lymphocyte. Without it, the immune system is much weaker, and people are able to get serious infections you won't normally get if you don't have HIV/AIDS.
I'm not exactly sure what the 'regulatory process' is, but normally if the T-cells are destroyed, the body responds by creating a much larger production.
Normal rates are probably around 1000-1200 T cells, but over time, this decreases to a much lower amount of number.

2. There's a new article of a disease that is similar to AIDS.
The immune systems are damaged and the person is unable to fend off germs that normal, healthy people are able to.
It's still under research as it's pretty recent, dubbed 'mystery', so I don't know what it's called.

anyone else?

well i can just add a little. HIV virus is deadly because

1) destroys cd4+ t helper lymphocites, aka "memory cells". they regulate how other immune cells operate, which is the main problem. most immune cells require cd4+ cells to send them instructions as to what to kill and what not to, without cd4+ ones it all becomes one giant mess.
2) its literally impossible to make an immune response against hiv, due to two main reasons:

- it uses an enzyme called "reverse transcriptase" to make DNA out of its RNA chain and incorporate into the cell DNA. the danger here is in the "imperfection" of that enzyme system. when our cells replicate, we have many DNA repair mechanisms that make the daughter cells the same, or at least extremely similar to mother cells. hiv doesnt have that, making it very susceptible to mutations. and when it mutates, the antibodies no longer can catch it, because...well, its not anymore what they have been told to catch its like when the cops are chasing a thief with long hair, and then he takes a haircut
- it can incorporate into the cell genome so even if you destroy it by non-immune mechanisms (drugs), it gets saved in some cells, and just attacks when it gets another chance

as for question 2, i dont really know how they mean it. if they mean by mechanism, well pretty much any retrovirus does the same thing, not just hiv. also there are a lot of inherited diseases that lack a part of the immune system, you can use those. but i dont really know any infective diseases that behave the same like hiv, except the monkey version of the virus (SIV)

also a little advice: respect the ones who help you more, or they wont help you again. this is not how you treat someone who just helped you, at least say thanks.

My bad, i thought i already did. Anyway, appreciate your help.