title: Specific immunotherapy in a pollen-allergic patient with human immunodeficiency virus infection.
abstract: BACKGROUND
  : According to the World Health Organization position paper, immunodeficiency such as human immunodeficiency virus (HIV) infection is a relative contraindication for specific immunotherapy (SIT). Since the introduction of highly active antiretroviral therapy, a significant reconstitution of immune competence in individuals with HIV is possible.
  
  
  METHODS
  : In a 52-year-old man, HIV infection was diagnosed in 1987. Antiretroviral therapy was started in 1998. He presented himself in July 2001 because of an increasingly severe seasonal rhinoconjunctivitis. Symptoms were not sufficiently alleviated by various antiallergic drugs.
  
  
  RESULTS
  : The investigations showed a relevant sensitization to tree pollens. Specific immunotherapy with a tree pollen mix (hazel, birch, ash, and alder, 25% each) was started in November 2001. Viral load at this time was less than 50 copies/mL, the CD4 cell count was 307/μL. Therapy was given in monthly intervals until mid-April 2005 without any side effects. Viral load and CD4 cell counts did not change during SIT. Clinically, rhinoconjunctivitis was experienced only intermittently and symptom relief was almost 90%.
  
  
  CONCLUSIONS
  : This report indicates that in patients with well-controlled HIV infection on highly active antiretroviral therapy, SIT with pollen extracts is a potential and successful therapeutic option.
authors.affiliation: From the 1Division of Allergology, University Clinic for Rheumatology and Clinical Immunology/Allergology, University Hospital (Inselspital); and 2Department of Infectious Diseases, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland.
authors.forename: Urs C
authors.initials: UC
authors.lastname: Steiner
authors.forename: Hansjakob
authors.initials: H
authors.lastname: Furrer
authors.forename: Arthur
authors.initials: A
authors.lastname: Helbling