Why in times of Covid-19 you can not walk/run/bike close to each other(medium.com)
medium.com
Why in times of Covid-19 you can not walk/run/bike close to each other
https://medium.com/@jurgenthoelen/belgian-dutch-study-why-in-times-of-covid-19-you-can-not-walk-run-bike-close-to-each-other-a5df19c77d08
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Update which deserves to be read:
https://www.vice.com/en_us/article/v74az9/the-viral-study-ab...