Cold Chain Technology Brief: Vaccines

This brief outlines the role, requirements, and challenges of temperature-controlled logistics for vaccines, with emphasis on developments during the coronavirus pandemic. It explains how vaccines are highly sensitive to temperature variations, requiring specific storage ranges from moderate refrigeration to ultra-low conditions, and details how stability studies define these limits. It describes the structure of the supply chain, including production, transport, storage, and administration, alongside the equipment and practices used to maintain temperature control. The document also examines operational, logistical, and environmental challenges, including continuity, traceability, energy use, and the need for skilled personnel across the system.