You can’t require people to take a vaccine that is ineffective, and has no long term health risk data.  It is not like any other vaccine we have taken. The world’s first malaria vaccine is about to be available after only 30 years of research. 
   I myself have religious beliefs that are more important to me than anything. If people want me to get vaccinated they might want to stop following the book of Revelation word for word. 
    Finally this isn’t just a school issue. The powers at be are trying to mandate 100% of the population to do something. That goes against anything democratic or free. Maybe there needs to be a lesson on the Virginia state flag.