Very few serious replies here, so I’ll try one …

I wonder if wearing gloves during food prep is the answer.

Stay with me here

• most infections are caused by by basic hygiene, scratching your hoo haw with hands that have touched other things, including other parts of your body.
• you touch raw meat as part of food prep (and women do most of the cooking)
• it’s well known and adopted that you need to wash your hands after touching raw meat, which ought to help prevent
• fingernails. Slime from raw meat also gets under your fingernails and most of us do not wash that well.

We have a series of observations leading to germs under fingernails after handling uncooked food as a possible disease vector. If it is a significant vector, how do you prevent it? I doubt people will start washing hands to that level of detail, but you already have a lot of cooks wearing latex gloves during food prep which should prevent it in the first place