There has been some information regarding the AstraZeneca COVID -19 vaccine and its safety in the news recently. AstraZeneca have released a statement on the safety of the COVID-19 vaccine.
Please see this link for futher details. https://www.astrazeneca.com/media-centre/press-releases/2021/update-on-the-safety-of-covid-19-vaccine-astrazeneca.html