The vaccine is not approved by the FDA, only "authorized for emergency use."
The strongarm tactics should tell you all you need to know about this 'conservative' school. Why would you even consider entrusting your child's education and daily well-being to such an institution?
Consider pooling resources and applying your tuition funds to a private, non-vaccinated group of teachers if you feel you are unable or unqualified to home school.
WALK AWAY, anon. Forget whatever you've signed….LET THEM TRY to hold you to it at the tip of a vax needle. NO CHANCE it will hold up in any court when, at the time you signed the documents, the vaccine stipulation was not in the contract.
Adjust your perspective, anon. This could be the greatest gift you and your child ever receive: being turned away from educational poisoning by poisoned minds.