CLINICAL MEDICINE

Detailed explanation-1: -Smallpox is a serious and often deadly viral infection. It’s contagious-meaning it spreads from person to person-and can cause permanent scarring. Sometimes, it causes disfigurement. Smallpox has affected humans for thousands of years but was wiped out worldwide by 1980 thanks to smallpox vaccines.

Detailed explanation-2: -In 1980, the World Health Assembly declared smallpox eradicated (eliminated), and no cases of naturally occurring smallpox have happened since.

Detailed explanation-3: -The eradication of smallpox from the world was certified by the Global Commission, an independent panel of scientists drawn from 19 nations, in December 1979 at WHO Headquarters, Geneva.

Detailed explanation-4: -One of history’s deadliest diseases, smallpox is estimated to have killed more than 300 million people since 1900 alone. But a massive global vaccination campaign put an end to the disease in 1977-making it the first disease ever eradicated.

Detailed explanation-5: -Before smallpox was eradicated, it was a serious infectious disease caused by the variola virus. It was contagious-meaning, it spread from one person to another. People who had smallpox had a fever and a distinctive, progressive skin rash.