The subject of this article is the preventive strategies used by 84 HIV-positive women and men. Its originality lies in the fact that it gives a new look on prevention. This new manner of considering prevention is studied with concepts from symbolic interactionism and self-determination and person/environment dialectic. Results show that these strategies are articulated through a diversity of practices and situations. They also show that the concepts used can be helpful to the renewal of the prevention in HIV/AIDS domain. These results are pertinent because, even though HIV/AIDS is now less in the news, it is always present in the day-to-day life of the people.