In a remote village, an aid worker pricks a sickly toddler’s fingertip, and like most of the other children’s blood samples, this one turns a test strip yellow. That’s how an experimental malnutrition test made with bacterial innards could work one day to expose widespread zinc deficiencies blamed for roughly half a million deaths annually.
Click here for original story, Test for life-threatening nutrient deficit is made from bacteria entrails
Source: Phys.org