I hvmave aquired 2 silkies today, well they were supposed to be silkies but they have the wrong comb. Either way they are cute. Very messy and need a bath. Anyway my question is my flock is all vaccinated I did them as chicks. What will happen if I add these unvaccinated. How do I do it safely. I have never added to my flock before. I didn't want too now but these needed help lol.