I fully support adding the Covid-19 vaccine to the already long list of required vaccines to enter a public school. We cannot with validity ask that our children are vaccinated against measles, mumps, polio and not ask teachers to be vaccinated for the deadliest disease I've known of in my life time.
All school personnel need to be mandated, unless health issues signed off by their doctors prevent them from receiving the vaccine. If they don't chose that option, they should then at their own cost have weekly testing with proof of no disease to be around children.