I have a pet RIR rooster who has been healthy ever since i bought him. I decided to get some chicks from someone i know, for eggs & to raise chicks. I got 3, they are 8-12 weeks in age. The first day i got them i noticed 1 chick had a watery eye. By the next day it had a foamy substance coming from both eyes, shaking its head, a slight wheeze & faint odor. I quarantined that chick alone & the other 2 in a separate area. I disinfected the chicken yard/coop/feed water bowls etc., with bleach water, even spraying the ground. The rooster did stay 1 night in area close to the chicks. The chick got so sick i had it put down or culled. it was wheezing so bad i could hear it 6 feet away, clear liquids running from its eyes. After lots of research i have decided it had CRD, or MG to be specific & have started antibiotic treatment on all 3 remaining chickens, i believe it is duramyasin. 1 remaining chick had slight respiratory symptoms, sneezing & scratching eyes. Im sure both young chicks have it. I dont want to have to kill chicks that are going to recover, but i dont want them infecting any future chickens i get or the rooster. We dont have the vaccine available in this area, i have searched high & low. I dont want to spend $100+ for what i found online. My q's are if i keep the chicks & they start laying eggs that are MG infected, are they safe for human consumption? Are the members of the infected flock going to eventually die from this anyways? Does CRD Always come back again in infected chickens? Im not experienced at having chickens, so i didnt realize there we so many diseases out there. Any advice from someone who has been through this would be appreciated.