How does HIV attack and spread?

Answer 1

How do AIDS attack and spread? the 5 ways it attacks the cells is: 1. HIV attaches to the surface. 2. Virus makes a copy of its genetic material. 3. Virus core enters cell and goes to the nucleus. 4. New virus assembles at cell suface. 5. New virus breaks away from the host cell. IT IS SPREADED BY 3 WAYS: 1. Sexual intercourse. 2. Sharing needles. 3. Mother to baby.

Answer 2

HIV (Human Immunodeficiency Virus) attacks the body through the immune system. It substantially weakens the body's ability to fight off common infections. Something as minor as the flu can be fatal when someone has an advanced stage of HIV or AIDS.

From a more physiopathological angle, the HIV is a retrovirus whose portions of its capside are highly attracted to the CD-4 receptors located on the surface of certain cells. Unfortunately, these cells are T-helper lymphocytes. T-helper lymphocytes are the most important cells of the immunitary system, as they are responsible for both immune responses (humoral immunity [which includes the production of antibodies] and cellular immunity [which basically kills foreing cells]).

The HIV virus reproduces by diverting the ''cellular factory'' of T-helper lymphocytes, which then kills the latters. Without the chemical action of T-helper lymphocytes, the whole immune system can't work normally anymore.

Answer 3

HIV spreads in the body by sexual contact with the partner, for example, kissing. If the female kisses the infected male, she'll get infected too. There are many ways to spread HIV. Another example is tattooos, if the tattoo artist is lazy and doesn't want to clean the needle, and uses it on you after JUST using it on a an infected person, there's a pretty good chance you can get it.

Answer 4

For HIV to be transmitted the virus must already be present, there must be enough of the virus to transmit, and the virus itself must get into the bloodstream.

For example: Say that one person decides to engage in sexual contact with an infected person. The only way that HIV can be spread to the non-infected person is for the infected person to already have enough of the virus in their bloodstream. The virus must then pass from the infected person into the non-infected person's bloodstream.

Of course sexual engagement is not the only path for the transmission of the virus. Other paths include direct blood contact from a cut or wound of some kind, needle sharing, and it can even be hereditary.

for more details Google it.

Answer 5

It's spread from person to person by:

# contaminated blood transfusions # unprotected (that is, no condom) sex # sharing an injecting needle with an HIV positive person.

Answer 6

aids is spread through sex and through blood to blood contact. SO USE CONDOMS.

Answer 7

When someone with aids was unprotected sex, shares needles or blood transfusion.Not using a condom when having sex with a person who has HIV.