questo dovrebbe essere sufficiente a capire perchè bisogna mettere le mascherine.

(bisogna saper leggere un grafico, certo...)
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RT @MurielBowser
“For all 50 states plus DC, this chart plots the percentage of state residents who say they wear a mask in public all or most of the time & the percentage who say they know someone in their community with virus symptoms.” #MaskUpDC https://www.washingtonpost.com/business/2020/10/23/pandem…
https://twitter.com/MurielBowser/status/1319626897748262912