just to add that the negative efficacy with respect to symptomatic disease is also shown in a study with N > 1,600,000: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3949410
just to add that the negative efficacy with respect to symptomatic disease is also shown in a study with N > 1,600,000: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3949410