I couldn't find any hard data to back up the Unison press releases and background. In fact, it seems to be entirely anecdotal. So then I decided to see if I could find any research on disinfection protocols for ambulances, and there's very little out there. In fact, it appears far, far more research has been done on disinfecting livestock transport (I now breed pigs) than on disinfecting ambulances. I think that says something...