And,
1) check if your store has specific hours for people in the sensitive demographic (for clarity, those over age 60, with compromised immune systems, and/or respiratory disease). If you are not, don't shop during those hours.
2) if you know of someone who is sick or otherwise unable to shop for themselves, ask them for a shopping list and get stuff for them. Do the transaction without direct-contact with them for their safety and yours.
3) if you're sick, stay home and reach out to family, friends, neighbors, the grocery store to shop for you.
Now, more than ever, clear writing matters.