The Department of Health and Human Services (HHS), specifically the Biomedical Advanced Research and Development Authority (BARDA), is seeking to procure storage and stability services for maintaining its supply of Live Attenuated Influenza Virus Master and Working Seed Lots. The procurement aims to ensure that these seed lots remain within specification for use in clinical trials or commercial drug production, which is critical for pandemic preparedness. The contract will be awarded on a sole source basis to MedImmune, LLC, which has been performing these services under a previous indefinite-delivery, indefinite-quantity contract since 2016. Interested parties may submit capability statements or quotations for consideration, and inquiries can be directed to Deitra Williams at deitra.williams@hhs.gov or Corneilus Stephens at corneilus.stephens@hhs.gov.