Hi ........ last week I lost a 12 week old Cochin .... I treated the other birds with Corid ...... today is day 5. Four of the girls are 21 weeks old and the other 4 are 13 weeks old. Should I start giving them vitamins now? Or just put ACV in their water. I wasn't sure what to do as a follow up to this treatment? One of my 21 week olds has just started laying eggs ....... I probably should throw those away? Also, should I treat the soil with anything to help prevent this from happening again? Seeing Lilly deteriorate so quickly was heartbreaking and I want to prevent this as much as possible from happening again.