Hello chicken oracle that I so greatly depend on... We lost one of our hens in a matter of 1-2 days (started with a cough, got lethargic, then found her dead on day 2-3). Now all our other hens are coughing/sneezing with a high pitch screech! Even our rooster, Rufio, is gasping for air. The first day I put them on antibiotics in their water, but after seeing their condition I went to TSC and picked up some needles and penicillin. I read 1/2 cc once daily? Is that correct? Also have them on electrolytes! Is this a virus or likely infectious bronch.??? There now is eye discharge and one poor hen's eye is glued shut!!! I tried wiping it with a damp cloth and then put some petroleum jelly to try and loosen up the gunk. Anything else to do for her and the rest of the flock?? I greatly appreciate it! We've sanitized the whole coop and don't want this to wipe our our very first flock of hens! Its starting to get cold here in Michigan and I wondered if something with the weather triggered this. Any input would greatly help! THANK YOU GUYS!!!