5 of my 5-month old chickens started sneezing yesterday. I am planning on giving them antibiotics in the water for 7 days. Is this ok for my 5 month old guinea and turkey? Should I give shots instead which I think is too much stress in this heat (the catching). This is the first time any of them are sick. I haven't been anywhere and nobody was here to bring anything in. I have no clue why they are sick. Any input is appreciated!