Yes, I seem to remember that a variety of vaccines are required for travel. So that is something to remember, that if you refuse to take your shots you may find it difficult to travel later, lacking the proper documentation to show that you have been vaccinated for the smallpox, polio, measles, etc. etc. But if you are living in another country, you could not have gottten through the border without the proper shots, so obviously your medical records will simply assumed to be in good order.