Breakthrough: Study finds drug boosts protection against HIV

In what's being hailed as a breakthrough, two new studies show that the same pills used to treat the HIV virus can also be used to boost protection against the infection.

The studies show that the drugs can reduce transmission of the HIV virus by as much as 70% among heterosexual couples.

Dr. Jonathan Mermin, the director of the Center for Disease Control's division of HIV and AIDS prevention, joins Kiran Chetry on American Morning to discuss the studies, their implications and whether the drugs could help eliminate HIV/AIDS for future generations.