Theme Day - Doorways

On the first day of the month, many of the City Daily Photo blogs post a photo based on a common theme. This months theme is doorways.

Click here to view thumbnails for all participants

This particular doorway was serendipity. I was waiting in the car for my wife to finish a bit of shopping and I saw the sign but could not read it. So I picked up the camera, zoomed in and found my theme day doorway.

I actually planned to post a macro of my eye (doorway to the soul?) but this is more interesting. The text reads:

Please go to back door
Remove shoes and shelf them
Wash or sanitize hands
Thank you

There is a story behind that sign, behind that door but I do not know it. I hope everyone there is well and wish them the best.