From comment 7 on he continues to ignore the Israeli study and produces some tweets that contradict it. I am unable to find his qualifications for doing this kind of analysis - or relevant credentials of any kind, for that matter - so I'm going to assume that the results from Tel Aviv and Harvard, as published in the New England Journal of Medicine, carry more weight. https://www.nejm.org/doi/10.1056/NEJMoa2110475