I am new to BYC and I'm not quite ready to get my first birds yet. However, I am wondering if the birds that I eventually get should be vaccinated? I have looked at many of the websites where you can order them and I notice that it is offered for an additional fee. Is there a particular reason why someone wouldn't want to have their birds vaccinated other than that they plan to do it themselves? Is it a requirement that the chickens be vaccinated if the eggs are being sold? Does vaccination affect the way that eggs can be marketed? In other words, if your egg-layers are vaccinated birds can the eggs still be marketed as organic (if they meet the other government standards)?