In July of last year, I had an outbreak of fowl pox in my small flock. I took all of the chickens to the vet, and had her vaccinate all of them. Now, some of them appear to have fowl pox ! Is this possible ? I did some reading, and did not look for any "taking" in the vaccinated area. Also, the vet vaccinated these chickens on two different days, with the same bottle of vaccine. She said it would be OK. It seemed to be OK because all of the chickens were in the same area, and not all of them got fowl pox. I am CONFUSED ! HELP !