One of my chickens, Liona the EE just died suddenly, today . She was 37 weeks old and had laid, in her lifetime, just under 4 dozen medium-sized lovely sage-green eggs. I found her keeled over dead, like she had fallen off the roost - no sign of illness. She had been laying smaller eggs than normal recently, but she did lay yesterday. I was slightly concerned about her laying schedule (skipping days). She might have been ill or might have been egg-bound. I am sad because she was one of my favorites. Now that she died - is there anything I need to do to protect the 3 other chickens? Should I disinfect my coop? (a big project) or take any other precautions? Thanks for any advice.