Condoms are almost 100% effective against catching the HI virus. Condoms are flimsy things but also strong, and if you use them carefully there is very little chance of them breaking (if you are having anal sex make sure you use plenty of lubrication).
There is no chance of the virus penetrating a condom. Stories about this are completely false.
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Very unlikely but still a slight chance maybe 1-2%
Very unlikely.
Via the condom, there is about a 2% probability of STD transmission; not from the latex itself but due to the condom failure rate.
om s one of the best protectors against all sex diseases.
Very effective if used in accordance with the directions on the packaging.
Condoms have a very high success rate against STI's and Pregnancy when used correctly. The percentage is somewhere around 93-95% success. It is however important to use condoms consistently and correctly. Added lubrication, such as water based lubricant, can significantly reduce friction and heat and therefore the failure rate of condoms.
A commonly held misperception is that latex contains tiny "holes" that allow the passage of HIV. This is false. Laboratory studies show that intact latex condoms provide a highly effective barrier to sperm and micro-organisms, including HIV and the much smaller Hepatitis B virus. (Information provided by Centers for Disease Control and The World Health Organization.) Stay away from Lambskin condoms as they do not protect against STI's and they do contain tiny holes.
Nonoxynol-9 is a spermicide commonly found on condoms and in lubricants. Statistics show some people are allergic to nonoxynol-9 and may develop a rash or irritation which can make them more susceptible to infections. Studies have found nonoxynol-9 to do more harm than good when it comes to safe sex.
Another option for women is the use of Female condoms. If your male partner says no to wearing condoms, the female condom is the . The female condom gives women the choice to be in control and stay safe.
More info on this and other safer sex issues can be found at http:/www.ripnroll.com/educate.htm
No they are not always effective; they may break during use and herpes can be transmitted from the pelvis.
Condoms have failure rates of 1/2 to about 2 percent.
Condoms may not be effective from STDs (such as herpes or HPV) because they are spread via skin to skin contact (such as from pelvis area).
My best estimate based on the above is 90% effective.
Condoms are about as effective against chlamydia as they are against pregnancy. If 100 couples with chlamydia has sex with condoms for a year and uses them perfectly, about two or three will have a pregnancy, and about one will transmit chlamydia. But people don't use condoms perfectly, so failure rates are higher in typical use (in which people sometimes don't use them, or don't use them before genital-genital contact, or allow them to fall off the penis after sex, etc.). With typical use, about 12 to 15 couples will experience a pregnancy over the course of the year, and about 9 will transmit chlamydia.