Developing COVID-19 vaccines was the first step in the fight back against the virus. The world then faced and continues to navigate, the significant challenges of having to protect, transport and safely store temperature sensitive pandemic payloads worldwide. Alongside cold chain challenges, further challenges remain relating to the equitable access to the various vaccines being produced and deployed on a global scale. Adam Tetz at Peli BioThermal talks about the updates on cold chain logistics of vaccine distribution.