On a special day in December, dozens of people gathered in a room and lit dozens of candles. It is a candlelight memorial for thousands of dead from HIV/AIDS for nearly 40 years since the virus responsible for the disease was identified. Civil-society organizations have been organizing around HIV/AIDS since then, and they are yet to see the pandemic peter out. “We are all candles burning, and hoping to burn to the last bit, but unfortunately, HIV cut some short,” says Nwakamma Ikenna. He heads a coalition of civil society...