chick dying? what is your diagnosis?

[Wyorp Rock]

unfortunately it was coryza infection that's why they made chirping noises and had eye discharge and finally couldn't open their eyes.
5 out of six died. one is well and running do you think I should cull him?

another 12 chicks were in presence of these six for 48 hours. do you think they got infected? after I found it was coryza I removed everything and cleaned...

So sorry to hear about your losses.

I'm glad you found out what the problem was. Eggcessive has given you some good information.