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Some people (perhaps 10%) and many with a Scandinavian background may have a mutation in one of the receptors for HIV which protects them. They become infected, but it does not become a productive infection with consequent loss of CD4 cell numbers and immunity, as occurs in other individuals without this mutation.

Doctor Profile

Stephen A. Klotz, MD

Infectious Disease Specialist

  • Board certified by the American Board of Internal Medicine
  • Professor of Medicine at the University of Arizona College of Medicine
  • Medical Director of the Arizona AIDS Education and Training Center and the Petersen HIV Clinics

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