Good to see this confirmed. We (myself, @HZiauddeen wrote about this back when this was announced). At the time there were countries doing contact tracing very successfully (S. Korea), but we relied on models instead of real-world global experience. https://www.thelancet.com/journals/langlo/article/PIIS2214-109X(20)30219-9/fulltext https://bird.makeup/@globalhlthtwit/1714971492381786533
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