Worms after recent treatment!?

[Eggcessive]

I think many people who live in tropical regions such as Florida, worm more frequently than folks in the north because of the conditions.

Don't chickens originate from warm and moist places? It just doesn't seem right to me to have to use these man-made drugs so frequently. There's got to be a way to prevent worm overload by improving management practices and breeding healthier birds. But how to do that, I don't know...Sorry, just ranting.