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I feel pretty disturbed right now by https://www.winfried-stoecker.de/blog/die-beste-impfung-gegen-covid-19 . If what Stoecker (a biotech billionaire) is saying is true then for the companies that developed vaccines it was more important to deliever vaccines with fancy technology on which they hold patents instead of just doing the straight-forward well understood way of producing vaccines that we know and that could give us as many vaccines as we wanted.