HIV spreads in the body by cell-to- contact. It attaches to either the CCR5 or CCRX4 co-receptor of the TH4 lymphocyte (White blood cell). It also attaches to the dendritic cell and, which is found in the lymph nodes. HIV really only attacks the white blood cell, which is what leads to a decreased immune system. A lot of people are going to argue that viruses do not kill the host, which is why HIV could never cause AIDS. But, let's look at the influenza virus. It kills plenty of old and young people and yet passes on very easily to other hosts. HIV is very capable of doing the same thing.
2007-04-05 04:13:52
·
answer #1
·
answered by nicoleblingy2003 4
·
1⤊
2⤋
hiv cuases aids by progressing into it. you get hiv first and what it does is destroys your CD4 and T cells. an those are the cells that destroy illnesses and dieases and with hiv destroying them, its hard for you to fight off illnesses and dieases and infections. so hiv makes your immune system really weak. hiv can last for 10-20 years without progressing into aids. you just have to keep yourself healthy and you will probably last a really long time with hiv. but once hiv progresses enough it turns into aids. and the doctors know because once hiv turned into aids, you only have 14% of your cells left. so think about it, a healthy individual has about 100%, well aids patients have 14% or less. hope this helps.
2016-05-17 06:23:30
·
answer #2
·
answered by anjanette 3
·
0⤊
0⤋
HIV-1, HIV-2 and other lentiviruses don't really "attack and destroy" CD4+ T-cells. But infected cells are killed off by CD8+ killer T-cells and also sometimes killed by the HIV itself.
Over time CD4+ T-cells decline, and these cells are a key component of the immune system. So a CD4+ count of less than 100 is pretty bad news. The normal range is between 500 and 1200 or so.
2007-04-05 17:27:00
·
answer #3
·
answered by Phillip D 2
·
2⤊
1⤋
HIV attacks and destroys CD4 T-cells. These are a specific kind of white blood cell and are a necessary part of our immune system.
A little more specifically, HIV binds to a specific receptor on the surface of the T-cell. The T-cell "eats" the virus particles in an effort to destroy them, but the virus winds up replicating inside the T-cell. The T-cell lyses, and the virus particles escape to infect other cells.
2007-04-04 11:19:24
·
answer #4
·
answered by Gumdrop Girl 7
·
6⤊
2⤋