I have 5 new pullets that were vaccinated for Cocci but today one of them is pooping frequent bloody poops (no poo really there just a bloody liquid.) I am trying to determine which it is but in the meantime, Cocci vaccination does not vaccinate against ALL strains of Cocci correct? If I am incorrect, what are my other possibilities? I did a physical exam on each & was unable to see any evidence of blood on their vent or feathers. I did not notice any hard crops but will check again tonight & tomorrow morning to be sure. My gut instinct is to treat for Cocci anyway but I would really like confirmation. TIA!