Blue zipped insulated medical carrier with two handles, made by Versapak International Ltd, labelled with ‘OVG’, and ‘Return to Churchill Lab for Collection by COVID Swab team’ and signs with the words ‘Biological Substance Category B’, used to transfer samples between the Jenner Institute and the Oxford Vaccine Group during the clinical trials of the ChAdOx1 nCoV-19, Oxford/AstraZeneca COVID-19 vaccine Insulated sample carrier used during COVID-19 vaccine trials 2015-2020