Figure 1From: UV-visible marker confirms that environmental persistence of Clostridium difficile spores in toilets of patients with C. difficile-associated diarrhea is associated with lack of compliance with cleaning protocol. UV visible marker for verification of toilet cleaning. Toilet seat lids visualized with regular light (A), and with UV light (B, C, D). The UV marker is scored at 3; shows heavy residual UVM (B), 2; shows moderate residual UVM (C), 1 shows light residual UVM (D), and 0: shows no residual UVM (not shown).Back to article page