The Department of Defense, specifically the Department of the Army, is seeking information from manufacturers and distributors regarding allergen extracts as part of a sources sought notice. The objective is to gain insights into the market for these extracts, particularly identifying which products respondents manufacture or distribute, and to encourage the submission of any unique FDA licenses or patents related to the desired allergen extracts listed in the accompanying document. This initiative is crucial for supporting research and diagnostic applications in public health, as the detailed listing of biological materials includes various concentrations and formulations relevant for scientific study. Interested parties should reach out to Jessie G. Hart at jessie.g.hart.civ@health.mil or Ricardo Cordero Cruz at ricardo.a.corderocruz.civ@health.mil for further information, with a future solicitation expected to be announced on sam.gov.