I don't have a perfect answer for you but what I have heard from other people was suggesting that
you should be able to do legally what you are thinking about as technically there is no reason
to question your ethics and religion if you claim that at some point things are as you believe they are,
and you culd believe otherwise before. It does not seem to be contradictory from what I have heard.
However this is not a legal advise, it is just something I have heard from someone who seemed to know.
Other then that I would recommend you to speak to a doctor who knows more about vaccinations
and those kind of issues that might be of value to you in your area, DR. SEars list recommended
this name:
http://www.myhealthbuilders.net/aboutus.php
she is not in MD but in VA however it is just few minutes away from DC so technically
it is closer for many then any practice in MD.. and yet there is not even one practice
in MD listed on DR Sears list that would discuss vaccs with you..
Good luck
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