Original sentence: (citation needed).In the speech, he confirmed his belief that immune deficiency is a big problem in Africa but that one can't possibly attribute all immune deficiency related diseases to a single virus.On 9 July 2000, Mr Mbeki opened the International AIDS Conference in Durban with a speech not about HIV or AIDS but about extreme poverty in Africa
Edited sentence: In April 2000 at the International AIDS Conference in Durban, President Mbeki made a speech that avoided reference to HIV and instead focused on the problem of poverty, fuelling suspicions that he saw poverty, rather than HIV, as the main cause of AIDS.President Mbeki defended a small group of dissident scientists who claim that AIDS is not caused by HIV