Bare in mind you are touching walls, gates, stiles etc that other folk before and after you will probably touch and who knows how many times they have coughed or sneezed on there hands. You will at some point remove your footwear which may well have recently passed through what somebody has recently cleared from there throat.
https://www.bbc.com/future/article/2...st-on-surfaces
call me paranoid if you like but i figure the issue needs taking seriously.
Stay safe folks