Not saying I know anything, but I'm a Nurse Practitioner for kids (pediatric) and just saying, but we sometimes give ivermectin to kids... for scabies or lice severe infestations.
so, I can't imagine in my wildest imagination that the teeny amount that might get thru the chicken, and into her egg, and then make it thru cooking... would affect a human...
you are talking about a dose appropriate to treat about 4 lb of animal, then diluted to just what got into ONE or two eggs... and then ingested by a 150 lb person... just not going to be enough to write home about...
that is 'my' guess anyway....
This thread is interesting me, as my roo's get 'scabs' sometimes on their combs, and one bird I had I could see what looked like sand on his tail feathers near the skin... now I'm creeping out thinking I have bugs!!! They never got treated, and it's been years! the combs still sometimes get scabs on them but I thought it was the hen pecking him... so... should I start treating?
If I'm right, the ivermectin will treat internal parasites too, so I think I'll just go ahead and do that, seems easy enough...
but the fungus on the comb possibility.... should I explore or is it remote...?