Thứ Bảy, 4 tháng 7, 2020

Scientists say WHO ignores the risk that coronavirus floats in air as aerosol: A total of 239 researchers from 32 countries signed the letter, which is set to be published next week in a scientific journal.


https://ift.tt/2ZByUE7 via /r/worldnews https://ift.tt/38q0MiL

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