I think you will do fine at work. Please don’t feel uptight over it. You’ve been around in stores and restaurants through this time and have been okay.
Businesses haven’t yet fully come to grips with the real estate they pay for, going unused. They still have the leases, after all.
Take the standard supplements mentioned many times on Free Republic, and keep the contact information for good online doctors who will prescribe what you need, if infected:
https://speakwithanmd.com/americasfrontlinedoctors/
Yes, I have been getting a lot of encouragement regarding supplements, thanks!