My serama pullet (5 months old) died yesterday morning from what I think was cocci. She showed no signs the day before and we found her rolled over in the coop the next morning. We brought her inside and gave her some corid but she died 20 minutes later. Just last month my silkie pullet got cocci, and the month before that my serama cockerel had it too. Luckily, we caught it early and they survived. This is our first death. Why do my birds keep getting it? I don't want to lose any more. Thanks!