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People who righteously fight to eradicate preventable diseases from their communities by bravely allowing qualified medical professionals inject them and their offspring with antibodies triumphantly developed in laboratories in order to trigger an immune response sufficient enough to protect them from said preventable disease.
"Hey, Jane is having a measles party, do you want to bring your kids so they can hurry up and get a preventable disease?"
"Hell no. My kids don't get preventable diseases. I'm a vaccinater."
by Sk8rnurse October 12, 2015
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