Harvard Health Letter

Are there any new vaccines?

Are there any new vaccines? Ask the doctor Q. Fancy new technologies keep appearing in medicine. Are there any innovative new kinds of vaccines? A. There sure are. Vaccines are one of the greatest inventions in history. The smallpox vaccine campaign conducted by the World Health Organization eradicated the disease from the face of the earth by 1980. How much good did that do? From 1900 to 1980, 300 million people died…

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