HIV/AIDS activists, some of them living with the virus, yell during a demonstration April 25, 2012 in Nairobi on the sidelines of a joint conference sponsored by the US embassy here and Kenya's vision 2030 about health and reducing mortality in the East African nation. The activists demanded that the US' - HIV programme, PEPFAR and the Kenya government work together to utilise some 500 million of unspent PEPFAR funds to get desperately needed HIV treatment to more Kenyans.