In the CERT class this is kind of covered in the triage section. Basically you should have a section removed from the wounded (duh), and wrap the body in whatever is available like a sheet. Also write down all available data (time of death, name, etc. etc.) and have someone guard the bodies 24/7 to protect them from looters. Thats assuming a natural disaster type situation where order would be restored rather quickly. I have no clue on something longterm. Would baking soda help keep the flies/smell down?