Kategoria:
Biznes i finanse
Kanał:
The Economist
Data:
8 kwietnia 2020, 18:40
Poziom:
C1-C2 (zaawansowany)
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The “silent transmission” of covid-19 means people without symptoms could be a major source of its spread. How effective are masks as a defence? Plus, Kenneth Cukier asks Ivan Oransky, co-founder of Retractionwatch.com, whether the race to uncover the mysteries of the virus could lead to a torrent of “bad science”.
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