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1950 GMT: Political Prisoner Watch. A petition, launched by Physicians for Human Rights, has called for the release of Dr Arash Alaei, a specialist in the prevention and treatment of HIV and AIDS, from prison.
Alaei was arrested with his brother and fellow specialist Kamiar in June 2008 for allegedly trying to overthrow the Islamic regime. They participated in several international HIV treatment programmes and conferences held in the US.
Kamiar was released in October but Arash, 42, remains in prison completing a six-year sentence.
The petition has been signed by prominent medics, including two Nobel prize laureates, Françoise Barré-Sinoussi and Sir Richard J Roberts. Susannah Sirkin, PHR's deputy director, explained:
[The Alaeis'] landmark efforts to bring patients, communities and families together to reduce stigma and provide comprehensive Aids prevention and treatment are remarkable and remain singular achievements in healthcare in Iran. We only hope that Dr Arash Alaei can be freed to continue this critical and groundbreaking work.
In 2008 the UN Programme on HIV/AIDS described Iran's needle-exchange programme, developed by the Alaei brothers, as one of the "clear examples of courageous, visionary leadership in the response to HIV".