I’m interested to know what sings/symptoms to look for for a Gallibacterium or Mycobacterium infection.
I had the same thing happen or our 3-month old pullet. We took her remains to the Georgia Poultry Lab for necropsy (they were AWESOME!!). Final diagnosis included Mycoplamsa and Gallibacterium. Sent the path report to my vet to find out if anything was contagious. Their response was,
“Both Gallibacterium and Mycoplasma are contagious bacteria species. Rather than treating everyone in your flock, I would use this information in the future if anyone develops clinical signs, specifically respiratory signs, we would treat for these pathogens. Wild birds can be reservoirs of both bacteria, so even if we treated everyone now, it would still be possible for them to be exposed again in the future.”
There is very little in GoogleLand about how Gallibacteria symptoms present in chickens that are still alive (most info was on diagnosis after death). Best I could find was, “The reported signs were respiratory symptoms (cold, dyspnea), diarrhoea, anorexia, emaciation of the affected birds and mortality.”
(Source:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5799919/)
I know this post is very old, but adding to it since there is so little info out there.