My flock was killed by dogs, except one, a couple months back. I felt bad for my lonely chicken and so I bought some eggs. Got them in the mail. Postal Service failed me. Had temp spike in Incubation. One egg hatched. Bantam silkie. I think her vision is damaged. She misses the mark when pecking sometimes and is not very adventurous. Is currently 5 wks old. Sneezing started day one with some diarrhea. Added probiotics and Vitamin Water. Seemed to clear up but intermittently would sneeze or have a runny stool. No nasal discharge that I could see. I thought maybe she got chilled and just had an infection. I felt bad for this lonely chick so I got some eggs from a friend. Only one turned out fertile and she hatched when silkie was a month old. I put them together. Maybe I shouldn't have but They get along well. Its really cute. Blackberry the younger chick leads Nugget the older chick around. Well now Blackberry is exhibiting the same symptoms (minus behaviour) and Nugget is sneezing, watery eyes, and nasal discharge. I didnt vaccinate for anything. Is it too late to do that? (Well ones probably too late for sure) They have been in contact with one chicken. Nugget had symptoms before this tho. In the same room at least and briefly in contact when I tried to introduce Nugget to Natalie. Natalie declined the moms job so she went back outside. The chicks are in a 2' x2' metal rabbit cage with a heat lamp, a roost, and pine shavings. I have continued the vitamin water. Im really puzzled because it seems like everything that matches should have killed Nugget some time ago. My best guess is getting some diatomis earth for them to roll in and treat with either antibiotic or for that parasite cocc(?). If i treated for cocc and they didnt have it what would happen?