We obtained a religious exemption from vaccines for our older son (who is now 7 and in 2nd grade in public elementary) .  His younger brother will be registering for kindergarten at the same school later this spring and I'm wondering if I'll need to go through the whole exemption process all over again from scratch, or will the fact that I have an exemption for his older brother help in any way?  We live in NY state.   TIA!