My chickens do not seem sick at all. & I've seen no worms in their poop. I've never given them the dewormer, just DE which says it will kill or prevent worms in the chickens. I haven't mixed it in their food (or on bedding etc) for a couple weeks & just got our first egg. If they have worms could they be in the egg? I'm just worried I haven't done enough. There is no sign of worms I'm just afraid of cracking the egg open to an icky surprise.