Former President John Agyekum Kufuor on Tuesday paid a courtesy call on President John Mahama at his official residence in New York, USA.The meeting followed President Mahama's participation in a number of events including a World Bank/UNDP forum on MDG's.Mr. Kufuor is attending some side events of the ongoing United Nations 68th session, while President Mahama is leading the Ghanaian delegation to the UNGA.Ghana and the Global Alliance for Vaccination & Immunisation (GAVI) & the Global Fund also hosted a side event on harnessing the power of global public-private partnerships in the Post 2015 agenda.