@Joanne161 I'm with @David192 @Sarah977 and @Pete28 on this. It's one thing to break a vase or some incidental and agree to pay via the Resolution Center. But bodily fluids everywhere that require the sort of cleaning job better done in a hospital environment goes beyond a financial repair: This may be a one time thing, but it may not be, and it is not fair to future hosts who may have to find out the hard way, having no knowledge of the risks. Urine is usually not infectious, but can be if there is blood in it. The human eye is not always able to discern this presence of blood.
My own experience with this sort of thing: I had a seemingly lovely older couple hack and cough all night (I could hear them from across the breezeway). After they checked out, I found blood spattered and smeared around the entire first floor Master suite, shower, counters, walls, sheets, pillows, linens, robes, and kitchenette. I had guests coming in 4 hours. My partner donned a mask and gloves and bleached down every inch of the space. Bodily fluids are nothing to be 'played around with' and can have serious health consequences, especially if a less experienced host is not aware of the need to protect oneself when handling soiled (possibly contaminated) materials (this requires gloves, mask, etc); how to properly dispose of such materials / waste (considered hazardous); and how to sterilize the rental so that the next guest is not exposed to possible contaminations via the bodily fluids.
I called Airbnb to report these guests and they were very helpful. They refunded me themselves for the linens, etc, and they looked for a way to get the guests out of the Airbnb system - So even Airbnb was aware of how egregious these guests' behavior was. I posted here in the community about how to review and got great feedback. I ended up giving them an honest review (I said 'stains' versus 'blood') and a 'thumbs down'.
This was my 3rd Airbnb guest, I was new at hosting, and in a bit of shock that something like this could occur, and nervous about leaving a guest an honest (negative) review. But I have worked in hospital environments and I knew how serious it was to have blood from someone's lungs spattered upon surfaces that others would be exposed to, as any bodily fluid is potentially hazardous and contaminated. Therefore, I felt an honest review was critical to the community. And I think the same in your case. So sorry this happened to you. Sounds like you handled it very well.