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Toronto man’s HIV no longer detectable after bone marrow transplant
Doctors say the patient is off antiretroviral therapy after a 2021 transplant, and only 10 people worldwide have reached this milestone.
- On Saturday, April 25, 2026, researchers announced a Toronto man is in prolonged HIV remission after receiving a stem cell transplant from a donor with natural immunity, potentially becoming the first Canadian cured of the virus.
- Dr. Sharon Walmsley, director of the HIV Clinic at Toronto General Hospital, has treated the patient since his 1999 HIV diagnosis; he required a 2021 bone marrow transplant after developing aggressive leukemia, offering a rare chance for a "double cure."
- Clinicians used a donor with a CCR5 gene mutation, which blocks HIV from entering immune cells; Dr. Jonas Mattsson, director of the Hans Messner Allogeneic Transplant Program at Princess Margaret Cancer Centre, oversaw the procedure.
- The patient stopped antiretroviral therapy in July 2025 and has remained in "sustained remission" with undetectable viral loads for nearly 10 months; doctors note he must test negative for 20 more months to be confirmed cured.
- Globally, only 10 patients have achieved this milestone, and experts emphasize that stem cell transplants remain too risky as a standard HIV treatment; this success provides insights for developing safer cures for the 41 million people living with HIV.
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37 Articles
37 Articles
The Record+2 Reposted by 2 other sources
Toronto man’s HIV no longer detectable after bone marrow transplant
TORONTO - A Toronto patient who has been living with HIV for 27 years is in remission – and potentially cured, according to his doctors – after a bone marrow transplant from a donor naturally resistant to the virus.
·Waterloo, Canada
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Winnipeg Free Press+27 Reposted by 27 other sources
Breaking News, Sports, Manitoba, Canada
·Winnipeg, Canada
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What caused HIV remission in Toronto man?
Canadian case: sustained HIV remission Scientists reported a “Canadian first” involving a Toronto man whose HIV is now in sustained remission. The coverage links the achievement to how researchers engineered or delivered the approach, but it doesn’t provide enough detail in the available story…
Coverage Details
Total News Sources37
Leaning Left22Leaning Right0Center7Last UpdatedBias Distribution76% Left
Bias Distribution
- 76% of the sources lean Left
76% Left
L 76%
C 24%
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