Is MG possibly left in the ground? I have heard some bad stuff can be left in the ground dormant for years?
That's why I called MSU and talked to the Chicken expert there. I wanted to know how long I needed to wait before starting over. He said that two weeks is a great waiting period. MG can live outside of a chicken for only three days. I told him I had eggs in the bator, some of my own eggs and some from another flock. I had already thrown out my own eggs but asked if the other eggs are now infected. He said that since I have never hatched in this bator that the eggs from the other flock are okay. He gave me a lot of advice and gave me hope!
He told me the eggs I have now and on order could have MG. To make sure I lessen the chances (if that is what I had) of getting it again he gave me lots of steps to follow. So now I have a plan, eggs on the way, and I'm more informed on the disease itself and how to test for it. I feel good about starting over. My only fear is that the eggs I have coming could have this too. He did set me up with a plan on how to handle the new chicks and when to test them. Any new arrivals and all batches after this batch hatches will be tested before any contact to my flock is made. He also told me a safer method of new chick confinement/introduction to prevent losing my whole flock to MG.
Once I get started again with (praying for) a clean flock, I will have my flock tested not only for NPIP pullorum but also for MG each spring before hatching season! I think the cost of testing is worth knowing that I'm not helping to spread this disease!