Fourth Person 'Cured' of HIV, But Is a Less Risky Cure In Sight?

AIDS researchers announced on Wednesday that a fourth person has been "cured" of HIV, but the dangerous procedure for patients also battling cancer may be little comfort for the tens of millions living with the virus worldwide.

The 66-year-old man, named the "City of Hope" patient after the Californian centre where he was treated, was declared in remission in the lead up to the International AIDS Conference, which begins in Montreal, Canada on Friday.

He is the second person to be announced cured this year, after researchers said in February that a US woman dubbed the New York patient had also gone into remission.

The City of Hope patient, like the Berlin and London patients before him, achieved lasting remission from the virus after a bone marrow transplant to treat cancer.

Another man, the Duesseldorf patient, has also previously been said to have reached remission, potentially bringing the number cured to five.

Jana Dickter, an infectious disease specialist at the City of Hope, told AFP that because the latest patient was the oldest yet to achieve remission, his success could be promising for older HIV sufferers who also have cancer.

Dickter is the lead author of research on the patient which was announced at a pre-conference in Montreal but has not been peer reviewed.