Take Ivermectin or other parasite killer once or a couple times per year.
It's fairly common in parts of Europe to store eggs in the fridge too, not because they have to be stored in the fridge (like American eggs do), but because it makes them stay fresh longer.
My lack of organisation gave me several times the opportunity to try eggs stores eggs longer than that - maybe 50days - and never had a problem. The only outdated egg I can remember (they are easy to notice by smell !) was “fresh”, strait from the shop, probably small cracks in the shell…
Regardless of the source I always crack it in a mug to give it a sniff first because you never know when you'll get a bad one the slipped through the cracks
Also one of the main reasons for chlorine-washing eggs is to reduce the instance of salmonella. But the salmonella is only there because the US will not pass regulation requiring farmers to vaccinate hens, as Europe does.
https://waterandhealth.org/newsletter/new/summer-1998/disinf...
For instance the eggs need to be stored in the fridge because they are dipped in checmicals, the rest of the world is fine without doing that. Same with chlorine in the water, it's not necessary.