Reply To: Vaccination

Maybe sects was the wrong word. I have heard that there are Rabbonim who oppose vaccinations. The claim I have heard is that they don’t believe it works despite the scientific evidence that exists. My question is, Is there some sort of theological or religious reasons that prevent them from believing that vaccines are effective? If there was a way that it can be proven to their liking that vaccinations work, would they still oppose it for religious reasons?