Cook your food.
Nothing follows.
Yep. Cooking food properly kills most/nearly all harmful bad stuff. If asked, I always order my beef at least medium well. I’ve eaten underdone chicken before, before I knew it was a bad thing, so I know what it looks and tastes like. I can now send it back after the first bite.
Contamination by harmful chemicals is another story.
Hard to cook a lettuce salad. Millions of people eat greens fresh.
If you are in a position to grow your own, you are in a good place.