By Helen Kennedy A new strain of HIV - one that standard AIDS tests may not detect - has been discovered in France.
The new type of human immunodeficiency virus appears to have originated in a gorilla disease first isolated in 2006.
The three previously known HIV strains are related to a chimpanzee illness.
The new virus should be treatable with the same anti-retroviral drugs that curb other strains of HIV, experts said.
Writing in the magazine Nature, researchers said they found the new strain in a 62-year-old woman who tested positive in 2004, shortly after moving to Paris from Cameroon.
The woman, who is not sick, had lived in a suburb of the Cameroonian capital and had no contact with apes.
The new type of human immunodeficiency virus appears to have originated in a gorilla disease first isolated in 2006.
The three previously known HIV strains are related to a chimpanzee illness.
The new virus should be treatable with the same anti-retroviral drugs that curb other strains of HIV, experts said.
Writing in the magazine Nature, researchers said they found the new strain in a 62-year-old woman who tested positive in 2004, shortly after moving to Paris from Cameroon.
The woman, who is not sick, had lived in a suburb of the Cameroonian capital and had no contact with apes.
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