India, Oct. 4 -- At least nine children have died in a Madhya Pradesh district after allegedly consuming contaminated cough syrup. As authorities ban syrup brands and investigate the source of contamination, the tragedy has thrust two dangerous substances-diethylene glycol (DEG) and ethylene glycol (EG)-back into the spotlight. With nine children dead in Chhindwara allegedly from contaminated cough syrup, two industrial chemicals-diethylene glycol (DEG) and ethylene glycol (EG)-are once again at the centre of a public health crisis. This is not the first time these toxic substances have caused mass poisonings in India and globally. Diethylene glycol and ethylene glycol are colourless, viscous liquids with a sweet taste. They are commonly us...