  ndsoda/2017/06/28/534403083/mutant- strains-of-polio-vaccine-now-cause- more-paralysis-than-wild-polio   ndsoda/2022/04/26/1092867458/vaccin e-derived-polio-is-on-the-rise-a-ne w-vaccine-aims-to-stop-the-spread unvaccinated and uncontaminated immune systems paired with clean water, sanitation, hygiene and nutrition are responsible for lower rates of disease, not vaccines.  polio, smallpox vaccines, etc. were developed long after the outbreak, after most people had already gained natural immunity. polio was from a combination of arsenic based pesticides (such as ddt) on crops and lead poisoning, and most statistically listed polio cases were the seasonal flu. smallpox, which has been rebranded as chickenpox, is poisoned tissue below the skin, in which case the body evacuates it straight through the skin. there's no contagion.  shingles has increased due to the chicken pox and measles vaccines. also, older people often have a recurring case of shingles or chickenpox as their immune system weakens.
Australia