Associação Saude Da Familia (ASF) mobilizes community support in poor favelas in Sao Paulo, Brazil, to protect young people from unwanted pregnancies and sexually transmitted diseases. This includes raising awareness and spreading information about HIV/AIDS. In these teeming slums, where drugs and violent crime are a constant reminder of the fragility of civil societies, ASF works with local community leaders, and municipal and state governments, to implement its programs to encourage safer and healthier behaviour. In its program "Expanding Prevention and Assistance to HIV/AIDS/STD", ASF trains lay persons in poor communities to become outreach workers. They make door-to-door visits providing HIV prevention education and offer voluntary testing and counseling services. With a grant from Johnson & Johnson, ASF was able to expand the scope of this program, and to help local health care units to provide diagnosis, prevention, treatment and care for people living with HIV/AIDS.