I've herd some chatter about vacc's and such and them being made for huge numbers of birds and the price of vacc's. I was thinking why don't we all write a letter to Fort Dodge etc. that make these vacc's and ask them to market their vacc's in smaller doses for the backyard flock. It seems like there is a growing need for it, and with need comes change. If they marketed their vacc's in smaller doses, giving the expiration etc.and info for pet/hobby farms they would sell even more product, and our birds could be safer. Like the Mareks vacc, I don't have 1000 birds(yet), and although $10 is not too much to spend, it is a waste to only use it once for a few birds. If it was in smaller doses,divided in small packets or something it would be more useful for the small flock raiser. It would also help with the disposal of the packaging too I think, less people trying to divide up the bigger bottles on their own, contaminating other objects. They could still sell the same doses but divided up into 10 per dose etc...... just a thought.