Why, indeed.<p>There are dozens of studies based on publicly available data, e.g. <a href="https://www.bmj.com/content/375/bmj-2021-068665" rel="nofollow">https://www.bmj.com/content/375/bmj-2021-068665</a>. I think they are a better starting point for a discussion about safety and public health than this rag.