Incredible man who invented an ultra simple hydration formula for people with cholera - 0.5L water, 1 fistfull of sugar, 1 pinch of salt. Number of kids dying of diarrhea fell by 90% even as population went up 70% https://t.co/Ln0hXWiw55
— Aaron M. Renn 🇺🇸 (@aaron_renn) November 10, 2024
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