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Over 30 million people told Facebook if they had the coronavirus or wore masks — and now it will be used for science

Over 30 million people told Facebook if they had the coronavirus or wore masks — and now it will be used for science

4 years ago
Anonymous $rxtAWepgzY

https://www.cnbc.com/2020/09/04/over-30-million-people-told-facebook-if-they-had-covid-or-wore-masks.html