There are plenty of people on here that have mentioned that a bird of theirs has shown signs of a respiratory disease and whether they treat or cull going by what I have researched the other birds around the sick one could be asymptomatic carriers. Supposedly this means that you should have a closed flock and not sell any birds or eggs. Now, here is my question. Does this mean that everyone on here that has had respiratory issues should not be selling their birds. Is there people out there who have NEVER had one of their birds come up sick? I mean there are many that have had a bird come up sick and not know one hundred percent what the problem is and they either somehow fix it or they have to cull but that doesn't mean their birds haven't been exposed. What are ya'lls opinion on this and how do you see it?