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In 1974, Ghana pioneered a new system which would help in the roll-out of the immunisation of serious diseases across Africa and the rest of the world. The World Health Organisation chose the country to trial its cold chain system, to help keep vaccines for often deadly diseases refrigerated. It would later evolve into the storage systems used to cope with the Covid-19 pandemic.

Justice Baidoo meets Patience Azuma, who was one of the first children to benefit from the Enhanced Immunisation Programme in the 1970s and Dr Kofi Ahmed later a chief medical officer, who helped in the original cold storage system roll out.

A Made in Manchester Production for ³ÉÈË¿ìÊÖ World Service.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more.

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(Photo: A man being vaccinated in Ghana. Credit: Junior Asiama / 500px)