I'm confused. My body, for whatever reason, refuses to show immunity to measles. According to CDC guidelines (straight from their website), "Presumptive evidence of immunity to measles for persons who work in health-care facilities includes any of the following: Recommendations and Reports MMWR / November 25, 2011 / Vol. 60 / No. 7 13 • written documentation of vaccination with 2 doses of live measles or MMR vaccine administered at least 28 days apart,† • laboratory evidence of immunity,§ • laboratory confirmation of disease, or • birth before 1957.¶" (https://www.cdc.gov/mmwr/pdf/rr/rr6007.pdf). I currently work in a hospital and have had two separate MMR vaccines administered over 30+ days apart. This would cover the CDC guidelines for presumptive immunity. However, my titers show that I am not immune. The school I am starting at in the fall is requesting that I get a booster MMR vaccine and redo titers in 4-6 weeks. I have discussed with the school that, according to CDC guidelines, I am presumptively immune. They have responded saying that it is their policy that I get the booster and redo titers. Is this an absurd thing to ask? I feel like CDC guidelines would take precedence and schools would really only be concerned with being within those guidelines. Should I press this issue or just suck it up and pay the money to get the booster/titers?