Become a feudal king from today

"Your Highness, why does this happen? Let me come first."

King Yan told them that people who are vaccinated with cowpox will also get sick, but the symptoms will be mild.

This is enough to prove that vaccination with cowpox is still a bit dangerous.

How could he, King Yan, put himself at risk?

Zhao Xu waved his hand, he knew what Hu Yan was worried about.

However, unless you have an immune deficiency, there is still no problem with vaccination with cowpox.

The Ninth Prince was once locked up in a dirty room by Zhang Han for a long time, but he had no physical problems at all.

There is still no problem with immunity, so he is very confident in himself.

Furthermore, he was the first to be vaccinated to set an example.

He had already planted it, so the soldiers had no reason to resist.

"No need to say any more." At this time, Zhao Xu pulled out a dagger from his waist and lightly scratched his wrist. It only cut the skin and there was no bleeding.

Immediately, he used a dagger to pick some pus from the cow's ulcer and smeared it on the scratch.

"This is the vaccination process, do you see it clearly?" Zhao Xu asked.

Shi Zhengui and Hu Yan looked at each other, thinking how complicated it would be.

It turns out to be so simple.

However, they then thought that if King Yan didn't show it to them, they really wouldn't be able to guess the method of vaccination.

"See clearly." The two said at the same time.

Zhao Xu nodded, "I asked the Military Division to create a batch of special daggers for you, specifically for vaccination. Now you go back and practice."

The special dagger he was talking about was naturally a small knife that looked like a contemporary scalpel.

In response, the two led everyone away.

Another day later, another twenty cows with cowpox were driven to Yancheng.

Zhao Xu left one for Liu Fu and asked him to rush to the herd of cows outside the city. At the same time, he made wounds on other cows and smeared cowpox pus on them.

He gave one of the remaining oxen to each fort, and the rest rushed to Yanguan.

At the same time, he asked Hu Yan and Shi Zhengui to hurry up.

Cows will have pustules in the early stages of cowpox. After half a month, the cowpox will scab and fall off and heal itself.

If vaccination is not completed within this time period, the cattle will be useless.

After giving this order, he and Shi Zhengui prepared to go to Yanguan.

As soon as he left the palace, he saw Chang Wei rushing over in a dusty manner.

He just came back from Yanguan.

"You came just in time. I am going to Yanguan now, and you are going to the fortress." Zhao Xu said to Chang Wei.

Then he told me about smallpox.

When Chang Wei heard this, he was surprised, his face turned red with anger, and his eyes almost burst into flames.

"Mu Lehong can really use this shameless and dirty trick. He is really a son of a bitch." Chang Wei cursed.

Then, without stopping, he went to the fortress according to Zhao Xu's order to supervise the vaccination of cowpox.

Zhao Xu hurriedly called him back and gave him a few more instructions before letting him go.

For the past two days, he had been thinking day and night about the way Beidi spread smallpox.

First, let the servants infected with smallpox attack the city, and then pretend to be defeated, leaving corpses on the ground, and the Yanguan soldiers were infected when they were cleaning up.

Second, artillery or bows and arrows were used to throw smallpox-carrying items into Yanguan, and soldiers would be infected when cleaning them up.

First, he felt that the chance was very small.

Because when soldiers are cleaning up, they will definitely be vigilant if they find something growing on the bodies of local soldiers.

This will prevent large-scale infections.

Secondly, the risk is too high. If the servant soldiers rush back, the Beidi soldiers will be unlucky.

The second option may be much greater, and if it were him, he would choose this way.

Just choose some soldiers who were infected with smallpox but survived and shoot things into Yan Pass with bows and arrows.

Therefore, what he told Chang Wei was to let the vaccinated soldiers handle these things when encountering such a situation.

Other soldiers were separated from these soldiers and did not come into contact with each other.

After two days of trekking, Zhao Xu and his party arrived at Yanguan.

When Mo Yu learned that Zhao Xu was coming, he immediately led General Yan Guan to greet him at the south gate.

After saluting, Mo Yu looked at the fourteen cows behind Zhao Xu with a confused expression.

In the past two days, Zhao Xu was a little tired of explaining to someone when he saw him.

However, this matter was important, so he explained it to Mo Yu in detail.

When Mo Yu heard this, he scolded Beidi Eighteenth Generation, who was just as careless about his image as Chang Wei.

Zhao Xu waited for him to vent and said, "Don't say any more unnecessary words. Immediately organize soldiers to come and vaccinate."

I was delayed for another two days on the road, and there was no time to delay any more.

"Yes, Your Highness." Mo Yu and the general immediately returned to their respective barracks as if their buttocks were on fire.

Zhao Xu led Shi Zhengui and other fifty people directly to the school grounds.

Not long after, a large number of soldiers gathered under the leadership of the general.

At the city gate, he had already asked the generals to briefly explain to the soldiers.

So although I was curious, I didn’t find it strange.

In addition, they learned that King Yan had also been stabbed, so there was nothing more to say.

Before the soldiers arrived, Zhao Xu asked Mo Yu to set up a tent at the school ground and stuff the cows inside.

This is also to maintain the mystery of vaccination.

Thus, even if the soldiers knew it was related to cows, they would not know that it was related to cows infected with cowpox.

Of course, in addition to this, the general will also instruct the soldiers to keep secret.

"let's start."

Everything is ready, Zhao Xu said to Shi Zhengui.

He set up ten long tables in front of the camp, and Shi Zhengui and the others sat behind the tables.

Then, he said to Mo Yu, "This is also a kind of charge, you generals should come first."

One sentence he often said to the generals in the military school was that the generals should take the lead.

They can't be like the imperial guards of Dasong, sending soldiers to die and taking the benefits for themselves.

For any general like this, he has no place in the royal army.

Mo Yu smiled and sat in front of Shi Zhengui.

Since his father was killed, he has long been indifferent to life and death.

Now he has only two wishes, the first is to continue his father's will, guard Yanguan, and expel Beidi, and the second is to find the murderer who killed his father.

For the first one, he believes that the King of Yan will lead him to achieve it.

And for the second one, he believes it won't take too long.

He also has friends in the capital, and knows what the powerful families are doing recently.

The world of Dasong seems to be in a state of separatism.

A chaotic world is coming, and in the chaotic world, they may not fight with the Xiao family.

At that time, he must catch Xiao Yuanshan with his own hands.

"Palm facing up." At this time, Shi Zhengui put Mo Yu's arm on the table and turned to enter the camp.

When he came out, he wiped the scratch on Mo Yu's wrist with the knife in his hand.

"Next." Shi Zhengui looked like a business.

After Mo Yu was vaccinated, he came to Zhao Xu, "Your Highness, how many soldiers can be vaccinated in total?"

"About 20,000 people." Zhao Xu said.

The pus of a cow is enough for 200 people to be vaccinated now.

After the pus dries up, we have to wait for the ulcers of the cow to continue to accumulate pus.

And in the future, the pus will only get less and less.

In the end, it will be good for a cow to vaccinate 1,300 or 1,400 people.

And cows that have had cowpox, like humans, will not get cowpox again.

So, cowpox will only get less and less.

This is also the reason why he came first after the soldiers.

For the next few days, Zhao Xu stayed in Yanguan.

He wanted to see the methods of Beidi with his own eyes.

But on the second day in Yanguan, he had small pustules on his body and had a low fever.

In the next two days, the soldiers who had been vaccinated also experienced this condition.