Possible link between AstraZeneca's Covid vaccine and clots: EU regulator

Oxford pauses trial among children; UK offers alternative to under-30s

Europe's drug regulator on Wednesday found a possible link between AstraZeneca's Covid-19 vaccine and rare blood clotting issues in adults who had received the shot and said it had taken into consideration all available evidence.
“One plausible explanation for the combination of blood clots and low blood platelets is an immune response, leading to a condition similar to one seen sometimes in patients treated with heparin,” the European Medicines Agency (EMA) said.
 
Meanwhile. a government committee in the UK advising on coronavirus vaccinations has said people under the age of 30 should be offered an alternative to the AstraZeneca