The AIDS Health Foundation (AHF) in South Africa says US President Barack Obama's decision last year to cut US funds for AIDS is putting strain on their efforts to fight the disease.
Obama announced in his budget for the 2013 fiscal year that he would cut funding for the Global AIDS programme by over 200 million dollars.
Director of the Foundation, Hillary Thulare has told the media in Pretoria that the cutting of funds has caused a deadly impact around the world.
She says: "This is going to put strain in our resources and we may never achieve the goal of making sure that there are many people as possible are put on treatment."
Thulare explained that South Africa is at the centre of the epidemic and if its not fought hard, they may lose the gains they have made in the last decade.
Thulare says if the funds are not increased, they will lose the fight against the epidemic
The foundation is urging Obama to continue funding both HIV/Aids and Tuberculosis on the continent.
The briefing coincides with the US president's arrival in the country this evening for an official visit later on Friday.
Thulare says if the funds are not increased, they will lose the fight against the epidemic.