This chicken has been sneezing for some time now, I had brought some others in from a person's flock. They were sneezing, I know big no no I didn't quarintine them. But I cut open his chest and I was wondering if anyone can tell me if it looks like he has any mucus or something. This is the only pic I have. Let me know If I did something wrong. and If you can tell what he had is it curable?

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