Is smallpox virus extinct? Can you tell me an example of smallpox once flooding?

The World Health Organization announced that smallpox could be declared extinct if no smallpox patients were found in the world for two consecutive years. 1977101On October 25th, a case of smallpox was found in Somalia, Africa. From then until 1979, 10125 October, no new smallpox patients were found in the world for two years. Therefore, this day was designated as the day of human smallpox extinction.

Example: smallpox was born 1 10,000 years ago, and the number of infected people is difficult to count, and the mortality rate can reach 35%. The emperor shunzhi died of smallpox infection in Qing Dynasty, but it was not passed on to his second son, Fuquan, because he didn't have smallpox. In the future, he died of smallpox and his imperial power was unstable, so he passed it on to his third son, Kangxi.

Extended data:

It is difficult to determine when smallpox actually started. Ge Hong, a medical scientist in the Eastern Jin Dynasty, talked about smallpox in his works. Ge Hong lived more than 1600 years ago, indicating that smallpox was born before this.

Smallpox has seriously endangered human survival and lasted for a long time. However, humans have not found a good way to prevent smallpox since childhood. It was not until the end of 18 that British doctor Chen Na discovered the method of preventing smallpox with vaccinia. After vaccination was popularized all over the world, the number of people suffering from smallpox gradually decreased.

People's Daily Online-1979101October 25th, the day of human eradication of smallpox.