dr. ammann wants us to be a voice for those who need help with hiv prevention, and you'll see how dr. ammann is using provocative artwork which he created to shock people into getting the message that there are two epidemics affecting women -- sexual and physical violence, and hiv. ♪ >> we're continuing our discussion with dr. art ammann, a northern california pediatrician and activist who is known for his breakthrough research on hiv transmission. he was at the forefront of the aids crisis more than 35 years ago. he's angry that medicine that could save lives right now is not easily available overseas. but things change dramatically when the medicine does reach the communities helped by his global strategies foundation. >> it's extraordinary. i mean, you talk to the people themselves. and they know they're hiv infected -- we provide the tests -- and they see that their babies are not born. they also see the transformation of lives that we've seen here, where you'll give an antiretroviral drug to someone who's infected and they get better. they don't have to go to the hospital. and for