The world has done an impressive job providing treatment to people living with HIV. But for years we were falling behind: For all the people who began receiving treatment, even more were becoming infected. Not anymore. New data reveals that 2013 was the first year we broke that trend — more people began treatment than became infected with HIV. Why does that matter? Because treatment keeps people alive while dramatically reducing the odds they will pass the virus to anyone else. As epidemiologists say, we can start to bend the curve of the disease. Victory over AIDS is still many years away, but this is a major milestone.