Update: Necropsy came back with no positive results for any upper respiratory illness or disease. So my hen was an anomaly apparently. I contacted the lab and explained I am deeply distressed because the hen I submitted didn't yield any results as to what was going around my flock. I inquired on how I can find out what is ailing my flock because I can't do anything at this point as they are on lock down not to mention I am worried this is something they will be carriers of and I am facing decisions to cull. Everyone has at some point sneezed in my flock and shown some signs by now and its worrisome.
After talking with the state lab about how the bird submitted apparently hadn't contracted yet- the illness presenting with the flock, I needed further help. I asked if we can swab or do other tests. They told me that swabs are more difficult to send in, and that it would be troublesome for me to try due to handling and shipping proceedures. Of course I could probably do some swabs and drive them a few hours there. Which I have considered.
With all of my concerns and distress the lab contacted and sent out the state poultry vet in my area for an investigation. He was very nice. Dr. Wolf specifically has a great fondness and love for chickens. He inspected my little farm and loved our set up. He commended us and offered even better suggestions on our custom feeders we will be looking at designing in the future.
Anyway upon examining the birds, he picked up many of them. Feeling their breast plates and such, and looking them over from head to toe. He commented that he didn't have the impression from exam that they were diseased. He commented during the investigation that he was observing several are sneezing and he acknowledged they were fighting off something, but he said it wasn't a disease in his experienced opinion. He even saw one with mucus bubbles in her eyes. I pressed him for further explanation as I suspected at the very least MG, or IB, and even asked about Coryza (which he politely corrected my pronounciation) but declined all my guesses at disease and commented he wasn't seeing any of that in the flock.
He examined droppings and and further commented that I didn't need to keep my flock on lock down. He said they don't have anything serious. I inquired as to why he thought they were sick or sneezing? He said it's likely just a little cold. He said we've had some serious cold spells around the time the symptoms presented, and continued on to reassure me he wasn't convinced an investigation into disease was necessary. He took pictures of all the birds, and our set up. And told me to look into NPIP certification.
I'm trying to feel better now, but like I told my neighbor who farms horses- It's hard to let it sink in- "that my flock is actually ok". It's like being informed by a family doctor without testing you likely have cancer (you also have all the signs of cancer) and then seeing an oncologist (doc who specializes in cancer) that says "I don't think you have cancer" but didn't run any tests either and you still have serious symptoms. But he's the expert right? I trust his judgement, he specifically studied birds before vet school, and their illnesses, and then went to vet school just for poultry I'm sure he knows what to look for and what he's talking about. Although my birds were looking healthier than usual yesterday.