Agreed Lisa. Wash your hands before turning eggs, disinfect your incubators, don't set soiled eggs, don't lift cover during lockdown. On and on and on. A mother hen has walked in poo and who knows what else, then steps on he eggs, sometimes poos on them. I had a broody silkie that tossed every single egg out from under her when it started zipping, she watched them hatch then put the newly hatched back under her--I was furious she'd shrink wrap them, I watched the entire hatch, all came out fine--Momma knows best. I do think sterilizing incubator between hatches is a good idea but most folks here are not hatcheries!! I always take a wet newly hatched out of bator and out of hundreds I've hatched I have never had one, not one, shrink wrapped chick.I dry incubate to. I figure the mamma hen dontwet her bottom every time sge sets on the nest so I just do it dry. I told my hubby I dont see my hens with lysole under there wings spraying there eggs every time she moves them so I try not to over think it to much. It drives him nuts but I have a great hatch rate.