Hi all, So in trying to resolve my hen's sour crop, I believe she may have gotten some fluid in her air sacs. After I got her to vomit she began breathing heavily and "wheezing" but both conditions have improved. She now only wheezes when she vocalizes, much like a person sounds like when they have mucus stuck in their throat. If she develops an infection/pneumonia from this, will it be transmissible to my other hens? I'm wondering because this will decide whether I buy injectable Tylan-50 or water soluble and treat the whole flock. Thanks for any and all help.