Examine the shaky evidence for the efficacy of a decades-old antimalarial against coronavirus. Plus: Canada begins the world’s largest clinical trial of survivors’ blood to treat COVID-19, and celebrating the life of astrophysicist Margaret Burbidge, who traced the origin of everything to the hearts of stars.

中文翻译：

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每日简报：羟基氯喹不能作为COVID-19的治疗证据

检查摇摇欲坠的证据，证明数十年来抗疟疾的抗疟疾药的功效。另外：加拿大开始进行世界上最大的幸存者血液​​治疗COVID-19的临床试验，并庆祝天体物理学家玛格丽特·伯比奇（Margaret Burbidge）的一生，后者将一切起源追溯到恒星的心脏。