Vaccine is literally a molecule that creates an immune response. Usually a small of amount of the virus we are trying to kill is included in the vaccine, this will strengthen the immune system which will in turn fight the virus. The first known vaccine was derived from cows infected with cow pox. The smallpox was taken from the cows, and administered to humans who were to be protected from the deadlier small pox. Measles and Polio are at records lows and although not common are still found in rare cases around the United States. Worldwide, measles has killed more than half a million people , mostly children in 2003. In this blog, we will discover exactly how the vaccines break down disease.
(The illustration to the right is an illustration of cowpox lesion on hand circa 1790. )
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