Hello, I just started treating my pullets with corid for coccidiosis after I had one exhibit the typical signs with bloody poop, listlessness, fluffy, not eating or drinking ect. Anyways as of this morning (24 hrs later) My original pullet is getting better but I now have 3 other pullets all starting to shows signs of respiratory illness. All sneezing, weezing, listless, and fluffed up. I had a pullet we rescued about a month ago that had respiratory illness that we treated with Tylon 50. Could these guys have been fighting it off too but the Corid knocked their immune systems so bad that any underlying illness they might have been fighting will become more pronounced? Also if so is it ok to continue treatment with corid and administer tylon 50 at the same time??