I’ve never dealt with coccidiosis and I’m unclear if chickens are born with a low level in their gut or if they get it from the soil. Would 3 week old indoor chicks in a clean hatching time brooder(has poop tray) get coccidiosis)? I have one acting lethargic and eating less and I’m trying to narrow down possibilities. They are in strict quarantine with no flock or outdoor exposure. Thanks and happy 4th.