Vaccines touch everyone across the world: from the poorest to the richest countries.

If one in every four vaccines is expired before it is used (excluding the numbers of fake goods), we are all exposed to the cost and the health impacts of this waste. We're either suffering from diseases that are completely preventable - or we're paying for a massive over-supply of drugs to make up the difference.

In this episode, Sid from Statwig explains how he is using blockchain to transform the supply chain for vaccines. Everyone wins when there is more efficiency and more transparency - and blockchain is helping to make that change.