Hi there, I think that a couple of my hens may have Infectious bronchitis. The worst one is sneezing, has been laying shell-less eggs (at least I'm pretty sure its her) and I have seen her with stings of saliva from her beak. Another one has her eyes closed a lot (and sneezes/coughs). I live in Canada and the farm stores I have contacted have not been that helpful. Do you think I have diagnosed this correctly?? Does anyone know how to treat the hens??? Thank you very much for any input you can offer!