It’s already protected millions from Covid and is an essential tool in the fight against the pandemic. 

But is the AstraZeneca jab safe? Spoiler alert: yes, probably. So why has it been dominating the headlines for weeks? And do broken promises and missed targets mean that the supply of the AstraZeneca vaccination is under threat? 

The award-winning Channel 4 News FactCheck team have been looking into the AstraZeneca saga, and today, FactCheck’s Paddy Worrall explores the scale of the risk of potential side effects from the jab, and a potentially bigger problem: can AstraZeneca deliver?