(New York Times) – He worked alongside another doctor to show that a simple rehydration therapy could check the ravages of cholera and other diarrhea-inducing diseases.

Richard A. Cash, who as a young public-health researcher in South Asia in the late 1960s showed that a simple cocktail of salt, sugar and clean water could check the ravages of cholera and other diarrhea-inducing diseases, an innovation that has saved an estimated 50 million lives, died on Oct. 22 at his home in Cambridge, Mass. He was 83. (Read More)