Visualization: How Covid-19 Spreads Indoors

El País has published a very helpful visual explainer on how Covid-19 spreads in enclosed spaces, including a bar, a classroom, and a room. The risk of virus transmission is highest in indoor areas, but that risk can be reduced by applying different measures like ventilation and mask-wearing. The visualizations show the likelihood of infection in three everyday scenarios, based on the safety measures used and the length of exposure.



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