I used to work on contaminated sites. A pain in the butt to get in and out of them. Upon leaving you would have several stations to go through. At real bad sites somebody was at each station to help you. Clean the boots. Clean the suit. Help take the boots off. Help take the suit off. Etc.
There was a video of somebody in China going through a similar procedure to get back into their apartment building. But the guys monitoring him only had him change out his surgeon’s mask and rub his hands quickly with sanitizer.
In between the ineffective hand sanitizing he used a common pen sitting on the table to sign in.
It is REALLY difficult and time-consuming to make sure you are decontaminated. Hence the disposable Tyvek suits. At $15 each they are disposable when charging $150 an hour at a haz-waste site. Going to the grocery store - not so much.
“In between the ineffective hand sanitizing he used a common pen sitting on the table to sign in.”
You’re right, staying decontaminated is very difficult. Anyone reading this could understand that simply by taking note of each step that they take when washing their hands after going to the restroom: touching the doorknob of the “throne room;” touching the handles of the hot and/or cold water faucets; touching the soap and putting it back in the dish or on the edge of the sink; shaking off your hands into the sink (where you also brush your teeth); drying off your hands on a towel that you’ve used before (and maybe others, too), and that you’ll likely use again (and maybe others, too). And that’s TRYING to be clean.
No one lives in a sterile bubble, which suggests to me that a LOT more people are going to get infected - including people that wash their hands a lot and take a bunch of vitamins to keep their immune systems functioning as close to design parameters as possible.