Stephen Crohn

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Stephen Crohn (5 September 1946 – 23 August 2013),[1] also known as "The man who can't catch AIDS", was a man notable for a genetic mutation, which caused him to be immune to the HIV virus.

Crohn had the "delta 32" mutation on the CCR5 receptor,[2][3][4] a protein on the surface of white blood cells that is involved in the immune system and serves as an access route for many forms of HIV virus to enter and infect host cells. This mutation rendered him effectively immune to many forms of HIV.

Crohn committed suicide at the age of 66.[5][6]


  1. ^ John Schwartz (September 14, 2013). "Stephen Crohn, Who Furthered AIDS Study, Dies at 66". The New York Times. Retrieved September 16, 2013. 
  2. ^ Tom Wilkie (September 16, 2013). "The man who can't catch AIDS". The Independent. Retrieved September 16, 2013. 
  3. ^ NOVA (PBS airdate: February 2, 1999) (February 2, 1999). "Surviving AIDS". NOVA (PBS). Retrieved September 16, 2013. 
  4. ^ Helen Pow (September 15, 2013). "The 'man who couldn't get AIDS' commits suicide at 66 out of 'survivors guilt' decades after VOLUNTEERING to be injected with HIV". United Kingdom: Mail Online. Retrieved September 16, 2013. 
  5. ^ News Limited Network (September 16, 2013). "The man who couldn't catch AIDS, Stephen Crohn, dies from suicide aged 66". Australia: Herald Sun. Retrieved September 16, 2013. 
  6. ^