I'm having a really hard time finding anything on this. Obviously this can be transmitted through a hen to her egg. But I can't find anything on these eggs hatching. If I were to buy eggs and have them shipped (considering) obviously there would be no way to test the eggs. Considering chicks stay in a brooder good biosecurity could keep it from my other chickens. My question is would this obviously show up in a brooder? Will the chicks die or quickly get sick or is it possible for them to appear normal up until they would go out with your other chickens?