Chemical Biological Radiological Nuclear Scientific Advisor Chief, Biodefense Research Countermeasures Branch The National Institute of Allergy and Infectious Diseases (NIAID), one of the largest institutes in the National Institutes of Health (NIH), and part of the Department of Health and Human Services (HHS), conducts and supports basic and applied research to better understand, treat, and ultimately prevent infectious, immunologic, and allergic diseases. The Office of Biodefense Research and Surety (OBRS) in the Office of Science Management and Operations, NIAID, seeks a highly qualified candidate to serve as a chemical biological radiological nuclear (CBRN) scientific advisor and