News feeds online have filled up with photos of used personal protective equipment strewn about on sidewalks, streets and other public areas. And beyond the obvious environmental impact, there's a larger concern that the once-worn items have touched contaminated surfaces and could pose a biohazard threat for those who eventually clean them up. "Gloves protect you against contact with infectious materials. However, once contaminated, gloves can become a means for spreading infectious materials to yourself, other patients or environmental surfaces," the Centers for Disease Control and Prevention said in its PPE guidance. The World Health Organization has said people are...