Yep. That has, in fact, been done and seems to show an elevated risk of GI illness in Olympians who swam in the Seine compared to previous Olympics. https://ww

Yep. That has, in fact, been done and seems to show an elevated risk of GI illness in Olympians who swam in the Seine compared to previous Olympics. https://www.medpagetoday.com/special-reports/exclusives/111605 https://www.medpagetoday.com/special-reports/exclusives/1116...