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Neal Halsey, MD

  • Professor - Emeritus

Departmental Affiliations

Center & Institute Affiliations

Contact Information

615 N. Wolfe Street
Room W5041
Baltimore, Maryland 21205


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MD, University of Wisconsin, 1971
BS, University of Wisconsin, 1967


My primary research and teaching effort is directed toward the prevention of infectious diseases with the safest vaccines possible. I have conducted or participated in epidemiological studies of vaccine-preventable diseases and phase I, II, and III vaccine trials of hepatitis B, hepatitis A, inactivated polio virus, pertussis, Haemophilus influenzae type B, tetanus, Lyme disease, rotavirus, Argentina Hemorrhagic Fever, and influenzae vaccine viruses. The control of measles has been a particular focus of interest and I support the ongoing measles and poliomyelitis eradication efforts. My interest in vaccine safety stems from experience with vaccine-associated paralytic poliomyelitis, increased mortality after high-titer measles vaccines, and differences in response to acellular and wholecell pertussis vaccines. On-going studies include: persistent poliovirus excretion in immunodeficient children, evaluation of Lyme disease vaccine in children, evaluation of alternative injection devices, and the safety of preservatives and adjuvants in vaccines.

  • International Health prevention of infectious diseases with the safest vaccines possible epidemiological studies of vaccine-preventable diseases and phase I, II, and III vaccine trials hepatitis B hepatitis A inactivated polio virus pertussis Haemophilus influenzae type B tetanus Lyme disease rotavirus Argentina Hemorrhagic Fever influenzae vaccine viruses
  • 1. Rollison DE, Helzlsouer KJ, Halsey NH, Shah KV, Viscidi RP. Markers Of Past Infection With Simian Virus 40 And Risk Of Incident Non-Hodgkin Lymphoma In A Maryland Cohort. Cancer Epidemiology, Biomarkers and Prevention 2005 (Accepted on Dec 2)

  • 2. Salmon DA, Moulton LH, Omer SB, deHart MP, Stokley S, Halsey NA. Factors Associated with Refusal of Childhood Vaccines Among Parents of School-Aged Children: A Case-Control Study. Archives of Pediatrics and Adolescent Medicine. 2005 (accepted).

  • 3. Salmon D, Halsey NA, Moulton LH. A dose of confidence. [Editorial]. Baltimore Sun December 2004 Reprinted in the Houston Chronicle. Available from URL:,1,5161546.story

  • 4. Salmon DA, Moulton LH, Halsey NA. Enhancing Public Confidence in Vaccines through Independent Oversight of Post-Licensure Vaccine Safety. AJPH 2004;94(6):947-50.

  • 5. Salmon DA, Moulton LH, Omer SB, Chace LM, Klassen A, Talebian P, Halsey N. Knowledge, Attitudes and Beliefs of School Nurses/Personnel and Associations with Non-Medical Immunization Exemptions. Pediatrics 2004;113(6) pp. e552-e559 [].