The HIV virus are becoming immune to the medicine Tenovir in 60 percent of cases among several African countries according to the survey, conducted between 1998 and 2015.
The study, led by University of London, the associate approximately 2,000 people who have the virus world.
The leader of the study Dr. Ravi Gupta has said that its results sparked widespread concern.
The work kukamilisha.Ilianza iliochukua four years in 2012 and iliwalinganisha patients of the disease in Africa and those living in Europe.
While these patients were divided into two groups, the study revealed that in Africa 60 percent of patients were not incurable and medicine in Europe Tenovir with that number dropping to 20 percent.

These findings are published in the Lancet about disease transmission, said that management m'baya of these drugs as well as the greater the need to use it with similar standards are possible because of this problem.
'' If the same rates of the drug not be used, the virus can respond to the drug and have immunity ', Doctor Gupta told the BBC.
'Tenovir is important medicine in the fight against HIV, so it is worrying to see the amount of HIV that are immune to the drugs'', he added.
The study also says that the virus in the protection against Tenovir can be transmitted from one person to another.