Read more at http://www.ihealthng.com/2016/07/vaginal-ring-protects-women-from-hiv.html?m=1According to researchers, vaginal ring (a silicone ring with an antiviral drug) can protect 75 percent or more of women from the AIDS virus.
The ring which has been designed to give women a discreet way to protect themselves from infection during sex or when the male partner refuses to use a condom releases a drug called "dapirivine", which can help stop the virus from infecting cells.
A team of researchers told the International AIDS Conference in Durban, South Africa that on average, women's risk of catching the human immunodeficiency virus (HIV) was cut by 56 percent after studies were designed to see if women could be encouraged to use it consistently and whether it worked better if they did.
However, other studies suggested it wasn't always improper use that was to blame if the ring did not work well. A big factor might be the type of bacteria living in and on a woman's body.
One study of 120 women found that those with an overgrowth of bacteria called Prevotella bivia were almost 20 times likely to be infected with HIV than those with lower levels.
Another study of more than 3,000 women found those with what's considered a healthful balance of bacteria in the vagina responded better to a drug called tenofovir when it was used as a microbicide.
The goal of the vaginal ring and similar products, called microbicides, is to provide men and women, with a variety of ways to protect themselves.

Once-a-day pills used in an approach called pre-exposure prophylaxis or PrEP can reduce the risk of catching HIV by 90 percent of more if people use it consistently. But studies suggest it could be difficult for young African women to stick to due to the fact that it's expensive.
HIV infects 36.9 million people around the world, according to the United Nations AIDS agency UNAIDS. Two million people are infected every year and more than a million die of AIDS.

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