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Originally Posted by FireFly
Regardless of how safe and effective these vaccinations have proven to be for now, there cannot have been any long term studies because it hasn't been around long term. Other vaccinations which have been around long term, have also been modified repeatedly after their initial versions. Anyone have a polio shot scar? I don't but my mom does. Vaccines become safer the more information we have. We've had mRNA vaccines now for less than two years. There just is not enough data for him to feel comfortable yet.
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No she doesn't (unless she was injured from the vaccine for some reason). The only vaccines that leave scars are the BCG (to prevent Tuberculosis) and smallpox vaccines because of how they're administered. The various polio vaccines are essentially the same as they were when they were introduced in the 50s, as are most vaccines; there's no reason to change an already safe and effective vaccine.