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Designer bacteria color poo to diagnose illnesses

So, Royal College of Art graduates, James King and Daisy Ginsberg, with the iGEM 2009 Biology team of University of Cambridge are working on an experimental disease detection kit that works by having patients gulp down an E. Coli bacteria-engineered drink and then check the color of their poo to see if they’ve been stricken down with anything.

Blue poo stands for worms, purple poo stands for salmonella, yellow poo stands for colitis, and so on. Not too surprisingly, a dull murky green-brown hue means the patient is a-okay. That do say colors in nature are poisonous…

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