They act as a barrier. HIV is passed from one person to another by blood or semen. The condom prevents the semen from entering the other person and so reduces the risk. It only works if the condom is used properly and no bodily fluids are transferred. Condoms act as a barrier between the man's genitals and the interior of the body of his partner; latex rubber (and most other forms of rubber) have a very tight molecular matrix which is too narrow for HIV cells to pass through, let alone fluids. During sex (even before ejaculation) fluid is produced by a man's penis and/or a woman's vagina, which serves multiple biological purposes ranging from lubrication to sterilisation; sadly, this fluid can contain HIV if the owner is infected. Though the skin away from the genitals is thick and difficult for viruses to penetrate, it is possible during sex for a man to become infected by absorbing the HIV virus through his urethra, and for a woman to become infected by absorbing the HIV virus through her vaginal walls, urethra, or uterus.
Thus, whether an uninfected man is having sex with an infected woman or man, or whether the man is infected and his partner is not, a condom will help reduce the likelihood that the partner will receive any of the HIV cells.
Of course, it is important to point out that the most effective prevention against sexual transmission of HIV is to refrain from sex.
Very effective, like 99 percent, if you use them right.
They are not very effective in preventing HIV transmission. They are probably better than nothing, but lamb skin condoms have microscopic holes in them - the holes are small enough so that sperm cannot pass through, but STDs and HIV are still a risk.
advantages: prevents HIV/AIDS and other std's as well as pregnancy.. disadvantages: does feel as good, some people are allergic to latex
AIDS (Acquired Immune Deficiency Syndrome) is a diagnosis and not a disease. HIV (Human Immunodeficiency Virus) is the virus that causes someone to develop AIDS. If using condoms correctly and appropriately, the risk of spreading HIV is very low. HIV is not able to penetrate intact latex. As long as there is no leakage or breakage, chances are very good that HIV is not going to be transmitted.
Being monogamous and practice safe sex. Individuals must be instructed in the proper use of condoms and urged to practice safe sex. Besides avoiding the risk of HIV infection, condoms are successful in preventing other sexually.
In the words of the CDC "latex condoms provide an essentially impermeable barrier to particles the size of HIV". As is said, nothing is for sure except death and taxes. I would have to believe the reason that the CDC would use the word "essentially" is because there could be a defect in the material, even though the defects would be measured in parts per billion, hence "essentially".
If you have unprotected (condoms burst) sex with someone who is HIV positive there is a chance that you can contract the virus. Read the related question below.
You can prevent HIV by using condoms and tell your partner to go see a Clinic and take the HIV -antibody test.
Yes
HIV is present in pre-ejaculate fluid. Pulling out is not an effective strategy for preventing HIV.
The teacher's role in school for preventing drug addiction and HIV is issuing guiding and counseling and educating the students on the dangers of drug addiction and HIV.
The only type of birth control that protects against HIV are condoms. Other methods do not prevent HIV.
It is safe as long as it's used properly.