Hi, I read that chicks can be vaccinated for fowl pox as young as 6 weeks. I do this,, but sometimes get fowl pox in chicks from 2 to 6 weeks. When my chicks get it at that young age, its usually fatal. At the young ages the disease doesn't stop progressing until their eyes and mouth are so damaged they can no longer live. Does anyone know what would happen to a chick vaccinated for fowl pox at 2 to 6 weeks?