"Because human waste contains shigella bacteria..." we wouldn't put human waste directly on the land. We currently do spread treated human waste that has been d

"Because human waste contains shigella bacteria..." we wouldn't put human waste directly on the land. We currently do spread treated human waste that has been digested on land, commonly called biosolids. https://www.epa.gov/biosolids/basic-information-about-biosolids https://www.epa.gov/biosolids/basic-information-about-biosol...