I was given 2 pekin 9 week old hens along with 6 5 week old silkies. One of the pekins had a bad smell to it face. I seperated and then 2 of the silkies came down with same thing. I took them to a vet and was told it was coryza. I then gave all the chicks back to the person who gave them to me. I have older silkies in a seperate pen. Not to far away from where I was keeping the other chicks. I have put antibotics in there drinking water and am hopeing they havent caught it. I poured petrol on the ground where the chicks where and burnt infected area. I also used straight bleach on the cage and anything they may have touched. I have also spread agriculture lime everywhere. Do you think this is enough to get rid of the coryza bacteria. Do I have to do anything else Thanks