What's dirtier than a toilet seat?

If you thought a toilet carried the maximum diseases, you're wrong. It's the plastic tray on which you place your phone, laptop wallet, bag etc at the airport security clearance. A research report published in journal BMC Infectious Diseases said the tray carries more respiratory viruses than a toilet seat. Respiratory viruses detected on the trays included deno, influenza A, rhino and human corona OC43. None were found in the airport public toilet. The research was based on 90 surface samples and four air samples collected at Helsinki-Vantaa airport over the course of three weeks in 2016