Saturday, November 12, 2005

pox virus

In reporting on the new pox virus infecting cows and humans, scientists found it to be 95% identical to the vaccinia virus, which is used to vaccinate against smallpox, does not cause disease, and is not normally found in nature. Anybody who is familiar with the history of the fight against smallpox will wonder how close this virus is to cowpox, which was used in the first vaccinations against smallpox.

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