I just moved into a place and underneath my bed there's a weird spill. I'm Not sure what it is: it's dark red and thick and dry. Is there any way to clean it or if not cover it up so it doesn't spread germs to the rest of the room? I typically use the space beneath my bed for storing things. If I had to guess it's probably food or vomit or blood.
Here's a picture after treating it a couple times with white vinegar. It's much better! The lighting is poor because it's under my bed so I used an LED head lamp to shine light on it.