I've been hearing the occasional sneeze from the brooder. I sat and watched them for a while, and no one sneezed. So I began pulling them out and carrying them around with me to see who the culprit was. They all seem to do it from time to time. They're a week old and on pine shavings with adequate heat water and food. The food is medicated manna pro. So, what gives? What do I do? They all seem perfectly happy and healthy otherwise. And the sneezing is very occasional. Once or twice an hour if they aren't sleeping.