Brown Hen, its sounds with 2 deaths already your birds may have the severe form of the virus, although it might be wise to comfirm with a post mortem. The coughing or cawing from the throat combined with bl>>dy mucous sound pretty consistent with ILT.
ILT is a horrible disease, and survivors will be carriers for life,so any new birds are likely to become infected. You can vaccinate (eye drops) but never ever mix unvaccinated birds with vaccinated birds. So if you sell birds or show them then this could be a problem.
You can only treat symptoms, reduce tracheal inflammation, create a humid enviroment, double dose of Apple cider vinegar in water, bronchial dilators (the vet can give you a powder to pop in water)
Good luck Brown Hen!
