Dr. Sheets is currently a board member and Executive Committee Member (Vice President for Human Biologicals) of the International Alliance of Biologicals Standardization. She is former Vaccine Scie...view moreDr. Sheets is currently a board member and Executive Committee Member (Vice President for Human Biologicals) of the International Alliance of Biologicals Standardization. She is former Vaccine Scientific and Regulatory Specialist at the National Institute of Allergy and Infectious Diseases. Dr. Sheets served 9 years as a Scientific Reviewer in the Viral Vaccines branch of the Division of Vaccines and Related Products Applications at the Center for Biologics Evaluation and Research at the FDA. From 2006-2014, served as Co-Chair of the World Health Organization’s Study Group on Cell Substrates and as Chair of the Adventitious Agents Sub-committee.view less