Information Resources

What You Need To Know About Proof of Immunity.

Updated August 08, 2023

Proof of Immunity

Q: My child is partially vaccinated and I do not want to give my child additional vaccines. What can I do to prove that my child is immune to the diseases that the state says are required?

A: Some state laws allow individuals to be exempted from vaccination or re-vaccination if proof of existing immunity for certain diseases can be shown. If a person has recovered from the natural disease or has been vaccinated, a blood titer test may indicate that there are enough naturally acquired or vaccine acquired antibodies to “prove” immunity to a particular disease.

Check vaccine laws in your state to find out if your state will accept a blood titer test as proof of immunity and provide a vaccine exemption. Private medical laboratories can perform the blood titer test and measure the level of antibodies and provide you with a report that you can submit with the request for an exemption if the antibody titers are high enough according to accepted standards. A blood titer test that measures antibody levels can cost $55 or more, depending on the disease.

However not all state school systems will take proof of immunity demonstrated by antibody titer tests as a reason to not vaccinate. Again, it is important to be familiar with the laws in your state, which can be found on NVIC's website here.

Make a Difference Support NVIC

NVIC is 100% funded by donations.
Please give.


Connect with Us!

Ask 8 Kiosk & Educational Marketplace

Explore FREE downloadable educational materials

Protect Your Right to Make Vaccine Choices
Opens in new tab, window
Opens an external site
Opens an external site in new tab, window