Scientists believe they have solved the mystery behind the extremely rare blood clots caused by the Oxford-AstraZeneca vaccine.
A team of international experts, involving researchers from AstraZeneca, say that in a very small number of cases, the vaccine can set off a chain reaction which leads to the body confusing its own blood platelets for fragments of virus.
![](https://i.dailymail.co.uk/1s/2021/12/02/12/51245413-10266585-image-a-2_1638447963336.jpg)