The smallpox vaccine was the world's very first successful vaccine. Developed in 1796 by Dr. Edward Jenner, it used the less dangerous cowpox virus to create immunity against the deadly smallpox virus. This medical breakthrough eventually led to the global eradication of smallpox, which was officially declared eliminated by the World Health Organization (WHO) in 1980
The smallpox vaccine was the world's very first successful vaccine. Developed in 1796 by Dr. Edward Jenner, it used the less dangerous cowpox virus to create immunity against the deadly smallpox virus. This medical breakthrough eventually led to the global eradication of smallpox, which was officially declared eliminated by the World Health Organization (WHO) in 1980
