Dec. 9, 2013 at 10:17 AM ET

Two men who had hoped they might be cured of an HIV infection after getting bone marrow transplants for cancer got some bad news, doctors said Monday. The virus has come back.

The intense and life-threatening treatments for cancer appeared to have wiped the virus out, and the two men took a chance and, earlier this year, stopped taking the HIV drugs that were keeping the virus under control.

At first, no signs of the virus could be found. But their doctors, cautious after decades of fighting a tricky virus, didnt declare a cure.

Its disappointing, said Dr. Daniel Kuritzkes of Brigham and Womens Hospital in Boston, who worked with Dr. Timothy Henrich to treat and study the two men.

But its still taught us a great deal.

The case of the two men shows that even if you make HIV seemingly disappear, it can be hiding out in the body and can re-activate. It might be somewhere other than in blood cells, Henrich said. Other scientists suspect HIV might be able to hole up in organs or inside the intestines.

Through this research we have discovered the HIV reservoir is deeper and more persistent than previously known and that our current standards of probing for HIV may not be sufficient to inform us if long-term HIV remission is possible if antiretroviral therapy is stopped, Henrich said.

Both patients have resumed therapy and are currently doing well. Neither man wants to be named.

Henrich, Kuritzkes and colleagues had actively looked for HIV patients with leukemia or lymphoma who had received bone marrow stem cell transplants.

See the article here:
AIDS virus comes back in men who hoped for cure

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