Thanks for your response, @sueinmn I just looked up fresh produce and coronavirus and found a number of websites that addressed it. I have sent them to him. He tends to really worry about my husband and me. He's a very caring son, but as you put it, he can be over the top. He was getting impatient with me on the phone when we discussed this.
We have a woman who comes in to clean every other week and he was upset that we let her in too. I was never close to her but he was concerned that she touched things.
Here are the websites I sent to him:
https://www.usda.gov/coronavirus
https://www.usatoday.com/story/life/2020/03/13/coronavirus-how-best-handle-food-protect-yourself/5046324002/
https://www.nbc-2.com/story/41872435/coronavirus-could-live-on-fruits-vegetables-at-the-grocery-store
https://www.ctvnews.ca/health/coronavirus/coronavirus-concerns-is-it-time-to-change-the-way-shoppers-handle-produce-1.4850278
I hope they will alleviate his concerns.
JK