Some time ago I bought three silkie and two salmon Faverolles chicks to keep with a singleton Serama. Long story short, it turned out that the new chicks carried a very nasty mutated strain of coccidiosis. All of the chicks ended up dead, along with half my flock. Nicely bred birds. Hardy birds. Expensive birds(do I sound angry? I am. I lost beloved birds, my project since 2011, all because the seller lied to me about the fact that she'd lost a good deal of her breeding birds to the same thing. Rant over.). Anyway, before I lost my favorite Serama rooster to this, his mate laid an egg which I incubated. The egg hatched. Anyway, Fitz's mate did survive, but she needed treatment. My question is, could she have passed it on through the egg to the baby, causing her developmental delays? And is there anything I can do for the baby, if it is? She's already getting parrot hand feeding formula and benebac-water mixture.