PREVENTION+Small+pox+by+Samuel

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By 1977, the virus was eradicated by the World Health Organization through the method of "mass vaccination" of different countries.

People have known for a long time that once you get a disease, you can't get it again in you life. Therefore. people started "vaccinating" people with the pus of another small pox patient. The best case is when the person gets a mild case of smallpox. In some cases, the person gets a full blown case of small pox.

Cowpox was also used to prevent small pox because those two diseases are quited similar.

The final and the vaccinations we use today was invented by the World Health Organization.