Very easily because in every developed country, vaccine-related illness was tracked with extraordinary care. By last summer in the UK, for example there were 9

Very easily because in every developed country, vaccine-related illness was tracked with extraordinary care. By last summer in the UK, for example there were 9 investigated cases where vaccination had lead to deaths https://blog.ons.gov.uk/2021/10/04/how-many-people-have-died-as-a-result-of-a-covid-19-vaccine/ https://blog.ons.gov.uk/2021/10/04/how-many-people-have-died... … and yes the ONS is independent of government