I will double check on the mareks, but the others are killed virus for sure. I purchased all but the mareks (I already had some) from Jean when I came back from the MT show. If you don't know how to give the vaccine you can find someone to show you (a vet, etc). Again, I am 100% certain on all but the mareks that the bird will not shed the disease.
For a good example of how community immunity can eliminate or reduce incidence and prevalence of disease look at Polio.
For a good example of how community immunity can eliminate or reduce incidence and prevalence of disease look at Polio.