It can close the parasite lifecycle loop when it's used for agriculture, so it's best avoided for growing stuff that's going to reenter the foodchain. The defe

It can close the parasite lifecycle loop when it's used for agriculture, so it's best avoided for growing stuff that's going to reenter the foodchain. The defector from North Korea who was in the news a couple of years ago was found to be full of parasitic worms when he was operated on, apparently because NK is using nightsoil to fertilise crops. https://edition.cnn.com/2017/12/04/health/north-korea-defector-doctor-intl/index.html https://edition.cnn.com/2017/12/04/health/north-korea-defect...