If you are familiar with the history of the Qing Dynasty, then you must know the origins between the Qing Dynasty royal family and smallpox.
Since the Entry of the Manchu Qing Dynasty, smallpox, a frightening disease of the past, has been pestering the Qing Dynasty royal family, making them avoid it.

In the 296-year history of the Qing Dynasty, a total of 2 emperors died of smallpox, one was Shunzhi, who was only 24 years old, and the other was Tongzhi, who was only 19 years old.
When the ceiling comes, no matter who you are, no matter what status and status you have, you will meet the god of death, and if you are lucky, you will pass by it, and if you are unlucky, you will be taken away by it.
The Kangxi Emperor, on the other hand, was a man of extreme luck.
Yes, Kangxi, the son of Shunzhi, also had smallpox and survived it smoothly.
The Kangxi Emperor was very famous in Chinese history, he ascended the throne at an early age, wisely captured Aobai, pacified San Francisco, and took it back to Taiwan, creating the "Kangqian Prosperous Era".
His mother was Tong Jiashi, not Shunzhi's love, and had an average status in the harem.
As soon as Kangxi was born, he encountered a smallpox epidemic, and in order to avoid the newborn Kangxi from contracting smallpox, Kangxi's nursing mother left the Forbidden City with her young Kangxi and went to a mansion outside xihua gate.
Originally a prince, but in order to avoid smallpox, kangxi, who was born soon after, left the Forbidden City and stayed away from the imperial power and wealth.
However, despite this, smallpox did not spare Kangxi.
When he was 2 years old, Kangxi still had smallpox.
Fortunately, Kangxi was extremely lucky, and although he had smallpox, he was eventually cured under the careful care of the nursing mother.
And this nursing mother, that is, the wife of Cao Xi, who was wrapped in the White Banner Han Army, the Sun family.
It can be said that at that time, the Sun clan and kangxi were dependent on each other, and the Sun clan was very good to Kangxi, and although Kangxi suffered from smallpox, he was eventually under the care of the Sun clan.
The relationship between the nursing mother and the little master was originally close, and after having this layer of experience of relying on each other, Kangxi trusted the Sun family and the Cao family even more.
Many years later, after Kangxi became emperor, after Kangxi gained power, the Cao family also made a fortune, from a small Han army to the richest man in Jiangnan and a famous courtier of the Kangxi Dynasty.
Cao Xueqin, the author of "Dream of the Red Chamber", is from this Cao family, this once powerful Cao family.
It can be said that a smallpox has made the Cao family prosperous.
After rubbing shoulders with the god of death, Kangxi's luck followed.
His father, the Shunzhi Emperor, died of smallpox at the age of 24.
Before the death of the Shunzhi Emperor, the 8-year-old Kangxi became the heir, the future emperor of the Qing Dynasty.
Originally, the Shunzhi Emperor did not think of letting Kangxi succeed to the throne.
However, because Kangxi had already had smallpox, he would not be killed by smallpox in the future.
Therefore, Shunzhi turned his eyes to Kangxi, and Kangxi ascended to the throne.
On December 20, 1722, the Kangxi Emperor died at the age of 69.
In his lifetime, he lived up to the trust of Shunzhi and the expectations of his grandmother, and was a qualified emperor.