Emperor Ming's grandson

Chapter 72 Smallpox and Jenner’s Vaccinia Method
Zhu Yuanzhang was startled by Zhu Xiongying's question.

Where does Dasun prevent smallpox?

Could there be an outbreak of smallpox in the underworld?

Zhu Yuanzhang was confused when asked, and he just replied: "We don't know about this matter."

Hearing Zhu Yuanzhang's answer, Zhu Xiongying was also a little helpless. He knew that time travel would cause amnesia, so this was not particularly surprising.

Since he couldn't ask, he didn't ask, but Zhu Xiongying thought of something.

That's where there was smallpox in the Ming Dynasty.

And smallpox was very deadly in ancient times!
As one of the oldest infectious diseases with the highest mortality rate, smallpox is caused by the variola virus. The variola virus itself is highly resistant and can withstand dryness and low temperatures. It can survive on scabs, dust and clothing for several months to For a year and a half, this virus is also highly contagious. People who have never had smallpox or have not been vaccinated against smallpox can be infected. The main manifestation is severe viremia. The mortality rate after infection is high, but the patient recovers. You will then gain lifelong immunity.

Of course, lifelong immunity still comes with a price, that is, even if the pustules on the face are healed, they will leave scars, which is how "Kang Mazi" came about.

The most basic, effective and simple way to prevent smallpox is to vaccinate against cowpox.

The reason why vaccination with cowpox can prevent smallpox is very simple. Cowpox is a virus produced after cows are infected by cowpox. While humans infected with smallpox will die, cowpox infection generally only causes mild discomfort and produces resistance to the cowpox virus. resistance.

Since the vaccinia virus has the same antigenic properties as the smallpox virus that causes human smallpox, people who receive the vaccinia vaccine can also acquire immunity against the smallpox virus at the same time. This is similar to the principle of smallpox vaccination.

In ancient China, the variola method was used instead of the cowpox method. There were three specific methods, namely the pox pulp method, the drought seedling method, and the water seedling method. The pox pulp method was to stuff cotton dipped in sore pulp into the vaccinated person. In the nostrils of the vaccinated person, the vaccine is infected; in the dry method, the acne scabs are dried and grinded into fine pieces, and then blown into the nostrils of the vaccinated person with a small tube; in the water method, the dry acne scab powder is mixed with water before use.

The main problem with the variolation method is that it is not safe enough. If the vaccine is improperly selected and the vaccination fails, the vaccinated person is at risk of dying from smallpox infection and may infect the people around him.

So, Zhu Xiongying told his grandfather the Zenner vaccine method and principles from Baidu.

Zhu Yuanzhang was overjoyed when he learned about this.

This is a real unexpected surprise. If this method can be implemented, the people of the Ming Dynasty will be free from the suffering of smallpox, and countless lives will be saved. This is a great merit!
After all, when Zhu Yuanzhang was a child, he saw the raging of smallpox with his own eyes, but he was lucky enough not to get it. Thinking of the people who lost their loved ones due to smallpox, and the children who were disfigured due to smallpox, how can we not make people sad? Now, with this better method of vaccination, all these tragedies will be avoided.

As for the specific operation, this is not the point for Zhu Yuanzhang. After all, the principles of many things are separated by a layer of window paper. If no one breaks it, it may not be discovered until hundreds of years later. But as long as the principles are understood, then with the Ming Empire Provide enough manpower and material resources, find professional people to conduct experiments, and you can figure out the specific methods of any technical operation, and you will be done with exhaustive list.

"Good! Good! Good!"

Zhu Yuanzhang was so excited that he said three good words in a row, which shows his excitement at this moment.

After a moment, Zhu Yuanzhang calmed down and continued: "By the way, Dasun, we have some new news to tell you."

Later, Zhu Yuanzhang told Zhu Xiongying exactly what happened with the "door".

This news surprised Zhu Xiongying. In fact, if you tell Zhu Xiongying about the theory of space-time wormholes, he really doesn't understand it, but this relatively easy-to-understand ancient theory can help him understand the principle better.

"So, people can really travel to the Ming Dynasty?"

However, Zhu Xiongying instinctively felt that there must be something he still didn't understand.

Let’s not talk about whether this “door” exists. Even if it exists, where is it? After all, the so-called "door" definitely does not refer to the one in front of you, but it is somewhere else, which makes Zhu Xiongying difficult to find.

In fact, if it weren't for that text message, Zhu Xiongying wouldn't have discovered the secret.

The world is so big, if there is another space-time wormhole, and Zhu Xiongying wants to find it, it will be like finding a needle in a haystack.

Moreover, the "door" is certainly not traversable at will.

The reason here is also very simple, that is, since the space-time wormhole he temporarily possesses can be opened frequently at such a high frequency, then for thousands of years, with the wide distribution of human footprints, for Zhu Xiongying, the vast world is, for Zhu Xiongying, For humans, it is not that difficult to find. No matter how remote it is, it is certainly impossible for it to have been discovered by others.

But throughout history, although there are one or two suspected "travelers", the overall historical trend is nothing unusual.

This shows that traveling through a time and space wormhole is not an easy task. It is definitely not just about finding the "door" and jumping in. There must be other restrictions or conditions, and these restrictions or conditions must be very important and difficult. What he has achieved is that he doesn’t know it yet.

------

At the Zhongshan Saint Sun Altar, the two of them were still talking slowly at the frequency of one sentence every hour.

Jiang Wei appeared at the Duke of Wei's mansion with the boxes of ointment. However, his appearance did not immediately win everyone's trust.

Xu Huizu and Xu Yingxu looked at each other, with a trace of suspicion flashing in their eyes. After all, such a weird thing, like soft mud, doesn't look like it can cure my father's gangrene.

Xu Huizu asked coldly: "Why should we believe this thing you sent?"

As a laborer, Jiang Wei naturally had no need to be angry because of their attitude. He said calmly: "Young Master, time is pressing, so we should treat the Duke first. Besides, it is His Majesty's wish to send medicine. It's not up to me whether it is needed or not." , and as for you, as for this medicine, it was sent by Shengsun, don’t you believe me, don’t you even believe His Highness Shengsun?”

Xu Yingxu pulled his elder brother's sleeve. No matter whether they believed it or not, they had to use this ointment. Otherwise, what would the emperor think if he found out?
Xu Zengshou took the boxes of ointment and walked into the room quietly. According to what Jiang Wei had just reported, he squeezed out the green ointment and gently applied it on the gangrene on Xu Da's back.

This ointment has no smell, it is white, and you can't see anything when you put it on.

Xu Da was sleeping at this time. After applying the ointment for a while, Xu Da woke up from a burning and itching feeling.

"Why is this back so hot?"

Xu Da asked hoarsely.

"Father, Grandson Gang brought medicine and applied a little on you. How do you feel now?"

"Some burning."

Xu Zengshou nodded. According to Jiang Wei, this was a normal reaction.

"After taking this medicine, you can rest for a while."

After Xu Da and Shui took a few cefradine tablets, another four hours passed, which was the time when Saint Sun Tan spoke four sentences. Xu Da woke up from his sleep again. This time his frown relaxed. Come on.

I don't know if it was the effect of drugs or psychology. Xu Da let out a sigh of relief, and the pain on his face that had lasted for several months also dissipated.

"It seems like the pain on my back isn't that bad anymore."

Xu Huizu and the other three observed carefully that although the back gangrene was still as big as before, the edges were obviously less red and swollen, and the patient Xu Da's intuitive feeling was obviously much better.

Seeing that the medicine was working, Xu Zengshou even cried with joy.

"Is this the magic medicine?"

Xu Yingxu said with some amazement: "The living dead, flesh and white bones. I didn't believe in the Queen's story before, but I didn't expect that it was the Holy Sun's magic medicine that saved our father."

"It's unbelievable!"

Xu Huizu was also stunned and speechless at this time. To be honest, he could not sleep almost every day these days. Xu Huizu had no idea what the Xu family would be like without Xu Da.

After all, Xu Da has always been in strong health. No one would have thought that he would suffer from this disease in his fifties. His sons were not ready at all to take on the important responsibility of a Wei government palace.

At this time, they saw that the medicine was indeed effective. Although they could not recover immediately, they were at least under control and developing in a good direction. The gratitude and admiration of the three brothers Xu Huizu and Zhu Xiongying could not be expressed in words.

This joy of surviving the disaster filled their hearts.

Xu Huizu and Xu Yingxu couldn't help but feel ashamed of their previous doubts, and admired Zhu Xiongying.

"Brother, where are you going?"

Seeing Xu Huizu walking out, Xu Yingxu hurriedly stopped him, but saw Xu Huizu looked ashamed: "I want to go to the Zhongshan Saint Sun Altar and personally kowtow to the Saint Sun to thank him for saving our father."

Xu Yingxu quickly dissuaded him and said, "Okay, brother, there will be many opportunities to kowtow in the future. Let us three brothers go kowtow together. Now it is a serious matter to guard dad first. Don't disturb your majesty."

As Xu Da's condition was under control, the entire Duke of Wei's palace was immersed in joy. His Highness Shengsun's miracle medicine also spread throughout the capital and became a hot topic of discussion after dinner.

But these are all things for later.

At this time, Zhu Xiongying's words transmitted through the space-time wormhole attracted Zhu Yuanzhang's great attention, because they were directly related to the national policy of the Ming Dynasty.

　The most highly ordered work in the history category, a book you absolutely cannot miss!

　　
　
(End of this chapter)