I've seen as little as 1 week on some sites but as a human doctor I'd bring something up. First, Ivermectin is literally one of the world's safest medications with a HUGE margin of safety! This means that in studies they have given up to EIGHT times the recommended dose to animals for as long as 60 days, and found only minimal temporary side effects. If you take asperin at 8 times the dose, you certainly will be hositalized and could easily die, for comparison. In addition, they found no effects on pregnant animals, even at high levels. Ivermectin is used worldwide on humans every day for a variety of issues, and contrary to the lamestream media, there were not people dying from taking Ivermectin for Covid. The absolute worst that happened was that people got a bit queasy, and half that was probably from their panic of having Covid LOL The amount in an egg is certainly lower than you give your dog in monthly heartworm prevention, and so minuscule in a dog or human that it would not even be a therapeutic dose. There's no real reason to withdraw eggs, except for people who want zero in their eggs. I'd certainly feed them to my dogs, rather than throw them out, EXCEPT for dogs that are in the collie breeds or Collie mixes, because they have a genetic difference that allows Ivermectin to penetrate the blood brain barrier. In these breeds, it is better to NEVER use Ivermectin.