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Vaccination has been perhaps the greatest advance in public health in the history of the world. Far from being over-reliant on vaccines, we need to increase subsidies for worldwide immunization programmes. Many devastating diseases such as polio and smallpox have been virtually eliminated by vaccination, and vaccination continues to be the cheapest and most effective way to increase life expectancy worldwide.
The important fact about immunization is that it only works when over 75% of a population is immunized to prevent diseases from gaining traction and multiplying. Thus the people who oppose vaccines are putting the health of large populations at risk in an unethical manner.
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