whooping cough vaccination

Bu
I'm currently 28 weeks and have decided that DH & I will be getting a whooping cough Vax. I feel very strongly about only allowing people who have had the vaccination to come into contact with bub. My family has no issues with this, and most of my friends work in the medical profession as do I, so they're already vaccinated.
Obviously, I cannot force people to go get this vaccination but I'm just wondering how I can politely put it out there to friends and family that unless they get the vaccination, I do not want them coming near baby ? 
This post is not about vaccinations themselves so please refrain from commenting on that :)