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True. Polio and Smallpox were on the decline, and then after the vaccinations they spiked up because many people got the diseases from the vaccines themselves, and then they started to decline again. Only 10% of the people in the world ever got the smallpox vaccine, and yet smallpox is now eradicated.

Yeah all of this was on some WHO charts if people bothered to look for them. They have since made it a little more challenging to find.