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12 h 21 ago 2020 ano - CDC: We know [wearing masks] works

Descrição:

https://www.cdc.gov/media/releases/2020/t0821-telebriefing-covid.html

Adicionado na linha do tempo:

Nathan Rich: COVID-19 in the USA

28 abr 2022

20

2

23651

Data:

12 h 21 ago 2020 ano

Agora

~ 5 years ago

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