Harold S. Nelson, MD - Allergy and Immunology

Dr. Harold Nelson reviews medical content for Healthwise, a nonprofit organization with a mission to help people make better health decisions. Dr. Nelson has been a professor in the Department of Medicine at the National Jewish Medical and Research Center in Denver, Colorado, for over 20 years. He is also a Professor of Medicine at the University of Colorado Health Sciences Center.

Dr. Nelson has published nearly 300 articles and book chapters and has been a key speaker on asthma, beta agonists, allergen immunotherapy, and allergy skin tests. He has served on the Board of Regents of the American College of Allergy, Asthma, and Immunology and on the Board of Directors of both the American Academy of Allergy, Asthma, and Immunology and the American Board of Allergy and Immunology. He has served as Medical Director of the Asthma and Allergy Foundation of America, as Chair of the Allergy/Pulmonary Advisory Committee for the US Pharmacopoeia, and as a member of the Allergy/Pulmonary and the Allergenic Products Advisory committees to the Food and Drug Administration.

Dr. Nelson has been honored with the Fellow Distinguished Award of the American College of Allergy, Asthma, and Immunology, the Distinguished Clinician Award of the American Academy of Allergy, Asthma, and Immunology, and membership in the Royal College of Physicians. He is a recipient of the "Gold-Headed Cane Award" and a Distinguished Service award from the American College of Allergy, Asthma, and Immunology, and a Lifetime Achievement Award from the National Jewish Medical and Research Center.

Board Certifications

American Board of Internal Medicine
American Board of Allergy-Immunology

Healthwise Knowledgebase Topics Reviewed

Allergic Reaction
Asthma in Teens and Adults
Asthma in Children


M.D.: Emory University, Atlanta, GA, 1955
Internship: Atlanta Veterans Administration Hospital, 1955–1956
Residency: Internal Medicine, Letterman General Hospital, San Francisco, CA, 1959–1962;
Fellowship: Allergy-Immunology, University of Michigan Medical Center, Ann Arbor, MI, 1967–1969

Academic Appointments

Professor of Medicine, University of Colorado School of Medicine, Denver, CO

Hospital Affiliations

Professor of Medicine, National Jewish Medical and Research Center, Denver, CO

Professional Affiliations

American Academy of Allergy, Asthma, and Immunology
American College of Allergy, Asthma, and Immunology
American Thoracic Society
European Respiratory Society
Colorado Allergy Society

Selected Publications

  1. Nelson HS, Gross NJ, Levine B , Rinehart M, Denis-Mize K (2007). Cardiovascular safety of nebulized formoterol: Results of a placebo-controlled, double-blind phase III trial. Clinical Therapeutics, 29(10): 2167–2178.
  2. Lent AM, Harbeck R, Strand M, Sills M, Schmidt K, Efaw B, Lebo T, Nelson HS. (2006) Immunologic response to administration of standardized dog allergen extract at differing doses. Journal of Allergy and Clinical Immunology. 118(6): 1249–1256.
  3. Guyer BJ, Shimamoto SR, Bradhurst AL, Grossbard EB, Dreskin SC, Nelson HS. (2006) Mast cell inhibitor R112 is well tolerated and affects prostaglandin D2 but not other mediators, symptoms or nasal volumes in a nasal challenge model of allergic rhinitis. Allergy and Asthma Proceedings, 27(3): 208–213.

Financial Disclosure

Consultant Arrangements: Genentech/Novartis, Dey Laboratories, Curalogic, Dynavax Technologies, GlaxoSmithKline, Abbott Laboratories, Schering-Plough, MediciNova, APT Pharmaceutical, and Johnson and Johnson.

Grants/Research Support: Schering-Plough, Behringer, TEVA, Novartis, Critical Therapeutics, AstraZeneca, Wyeth, Sepracor, Altana, and Genentech.

Speakers' Bureau: GlaxoSmithKline and AstraZeneca

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