The Recombinant Zoster Vaccine ecosystem encompasses a defined value chain that begins with upstream inputs such as antigen‑production media, adjuvants, and sterile containers, proceeds through midstream activities including bulk vaccine synthesis, fill‑finish, and packaging, and ends with downstream distribution to immunization programs and clinical settings. Value is created when each participant transforms or conveys the product, and captured through contractual arrangements, licensing fees, and service contracts. The chain is bounded by regulatory approval requirements, cold‑chain logistics, and reimbursement policies, which together shape the flow of the vaccine from raw material suppliers to the final patient. The ecosystem is further shaped by intellectual‑property licensing arrangements that link proprietary antigen platforms to third‑party manufacturers, reinforcing collaborative risk sharing across the chain.