08 Sep 2017 --- Researchers at the University of Waterloo, Ontario, have invented a fast, affordable way for developing communities to test their drinking water for potentially deadly E.coli. Unlike current tests that cost about US$70 and can take up to three days to get back from the lab, the Waterloo invention uses paper strips similar to those in litmus tests to produce results in less than three hours at a cost of 50 cents.
