Is there a method for preventing hiv infection?

HIV prevention.: Today, more tools than ever are available to prevent HIV. In addition to limiting your number of sexual partners, never sharing needles, and using condoms the right way every time you have sex, you may be able to take advantage of newer medicines such as pre-exposure prophylaxis (PrEP) and post-exposure prophylaxis (PEP). Check out this CDC link.... http://www.cdc.gov/hiv/basics/prevention.html