South of Chang'an City.

On both sides of the official road, near the water source, a group of people are fetching water and lighting a fire for cooking.

Most of these people are refugees, where they have been affected by disasters and have fled, they will enter Chang'an City during the day to find some odd jobs, and at night they will go out of the city to spend the night, and many people gather in this area.

With a land temple as the center, there are roughly more than 20 thatched huts or tents set up, some hungry people are cooking on fires, the food is the disaster relief food of Wannian County, there are a lot of displaced refugees who come to Chang'an every year, Wannian County has its own set of processing procedures, the number of people is not large, and when the number of people is large, it will arrange for the officials to screen their identities and move back to their hometowns.

Compared with previous years, the life of the refugees who came to Chang'an City this year is much better, the granaries of Wannian County are almost piled up, so the food distributed is very sufficient, a large part of the reason why these people are hungry is because of the long journey, coupled with malnutrition, but they can only do this step, people leave their hometowns, they can stutter, this group of people is already very satisfied, if they are not forced to leave their hometowns.

Chen Qingzhi took people fully armed, not armor, but masks, gloves and tightly worn, came to this area, let's just become a refugee area, refugees in the refugee area, looking at these strangely dressed people approaching, instinctively a little scared, some of the people left behind stood up one after another, their eyes were full of vigilance.

"Qian Langzhong, where is the family you are talking about?"

Lang Zhong, who was named Qian Zhong, walked out, and after a careful glance, he pointed to a child a few years old not far away: "It was that child who pulled me, it should be his house!" ”

Chen Qingzhi nodded, got off the horse, and walked towards the child, at this time, a woman stopped in front of Chen Qingzhi, said something loudly, and knelt down to kowtow to Chen Qingzhi, Chen Qingzhi didn't understand and looked at the entourage beside him: "What did she say?" ”

"General, she said that the child was only dizzy at that time before she bumped into this Lang Zhong, so you don't want to catch the child!"

This entourage is from Shannan and can understand the woman's words, after Chen Qingzhi heard it, he looked at the entourage: "Tell her that she is not here to arrest her child, but to verify the situation!" ”

"Whoa!"

Soon Chen Qingzhi was led by the child and the woman to his house, a simple wooden house, and saw a middle-aged man lying on the bed.

"Smallpox, really smallpox, really smallpox!"

After Qian Langzhong saw it, he was sure that it was smallpox at a glance, and immediately screamed in horror.

Hearing Qian Langzhong's frightened scream, the people around him also became nervous, smallpox, this disease has been heard of by the people, and now some people have smallpox, and some people are ready to run.

"Stop them, no one is allowed to move, stay at home, Zhou Sui!"

"In!"

"Notify Wannian County, let them quickly send people over, there must be no entry and exit here, and immediately investigate when these people have entered Chang'an City recently and who they have come into contact with!"

"Whoa!"

In the East Palace, Yu Zhiqian was anxiously waiting, the chapter had already been written, as long as the south side of the city could confirm that it was the epidemic in Shannan Province, Yu Zhiqian would immediately report it, and the epidemic situation in Shannan Province might not be under control, and he had been concealing it.

"His Royal Highness the Crown Prince!"

A servant trotted into the East Palace, and Yu Zhiqian raised his eyebrows when he saw it: "What's the matter!" ”

"General Chen Qingzhi asked the villain to report to His Royal Highness the Prince, and it has been confirmed that the family in the south of the city is indeed smallpox, and they have fled from Shannan Road!"

When Yu Zhiqian heard this, he immediately stood up from his position: "What about Chen Qingzhi? ”

"Your Highness, General Chen said that he has been in contact with smallpox patients, so it is not appropriate to enter the East Palace and let the villain report it!"

"Okay, I know, Shen Wansan, the palace is going to enter the palace and change clothes, you go and tell Chen Qingzhi, seal the scene immediately, no one is allowed to enter or leave, and no one is allowed to approach in the surrounding three miles, let him wait a while, I will go over later!" After finishing speaking, Yu Zhiqian quickly changed his clothes and rushed towards the palace, already prepared for the worst in his heart, Shannan Dao might really have a big problem.

In ancient times, the medical conditions were very poor, and the outbreak of the plague could easily cause a large number of deaths, and the consequences of a plague were incalculable.

But it's not all bad news, the good news is that in ancient times, transportation was very underdeveloped, there was little movement of people, and a plague broke out in a region, and it was rare to spread it on a large scale, but if it was an animal infection, the consequences might be unimaginable, Yu Zhiqian didn't know how smallpox spread, but now he could only try his best to prevent a bigger epidemic from happening.

"The prince is here?"

The emperor was eating, not calling for a meal, and when he heard that Yu Zhiqian was coming, he immediately put down the dishes and chopsticks and looked at Yu Zhiqian.

"Father, the epidemic in Shannan Province is probably not as simple as reported by the Shannan Thorn History, there have been people who fled from Shannan Province in the south of Chang'an City, and they have been confirmed to be suffering from smallpox!"

"What?"

The emperor was also taken aback, and took Yu Zhiqian's recital: "Have you investigated? ”

Yu Zhiqian nodded vigorously: "I have already sent someone to investigate, Chen Qingzhi has arrived in the south of the city and blocked the location of the refugees, but I am afraid that something big will happen on the other side of Shannan Road!" ”

The emperor squinted his eyes and stood up from the dining table: "I already know about this, Chang'an City must not be able to break out of the plague, do you hear?" ”

"Erchen understands, but Father, Erchen needs to urgently mobilize some supplies, and he also needs to send people to search Chang'an City, and he needs your token!"

The emperor handed over a large seal: "The matter is urgent, the prince, you can cut it first and then play!" ”

"Sons obey orders!"

Yu Zhiqian took the token, didn't even look at it, turned around and was about to leave, and suddenly thought of something: "Father, the son feels that the people who enter and leave the palace now must also be disinfected and checked, especially the personnel who go out of the palace compradors, and the palace must also be disinfected. ”

The Emperor nodded: "I know!" ”

The emperor didn't think Yu Zhiqian was making a big fuss, smallpox was too terrible, the emperor liked to study historical materials, and he had seen things that caused turmoil in the dynasty because of the plague, so he was very cautious.

After Yu Zhiqian left the palace, he immediately returned to the East Palace, and asked Shen Wansan to bring some of his change of clothes and necessities, and prepare not to go back to the East Palace to live during this time, otherwise he would come into contact with too many people, in case he infected Cheng Xiang and others......

After Yu Zhiqian changed his clothes in the south of the city, he walked in, and after Chen Qingzhi saw Yu Zhiqian, he immediately stopped Yu Zhiqian: "Your Highness, why are you here, it's dangerous here, Your Highness, you should wait outside!" ”

Yu Zhiqian glanced at the refugee area in the distance: "How is the situation investigated?" How about Shannan Road? ”

"I've already asked, they are from Jiangcheng, Shannan Province, there were rumors of smallpox in Jiangcheng in March this year, about a month ago, someone in their village was infected, they escaped, and ran out of Jiangcheng overnight!"

"Why overnight?"

"In order to prevent the spread of the epidemic and prevent the people from going out, if they don't run overnight, they can't leave!"

Yu Zhiqian nodded, in terms of controlling the epidemic, the officials in Jiangcheng did the right thing: "It is true that they should be quarantined, so why should they run?" ”

"Your Highness, if you don't run, you will starve to death, their village has been sealed off, they are not allowed to enter or leave, the food at home has run out, and many people in the village have died of illness......"

"Didn't anyone deliver food?"

"No, they said that there were more people dead in Jiangcheng, and when they ran, some of the officials who blocked the village were also infected, so they were able to escape!"

"So serious?"

"They ran all the way out, and many villages on Shannan Road were already empty, and many people died!"

"Damn, after they came to Chang'an City, have they ever entered the city and come into contact with anyone?"

"Your Highness, the humble post has already asked, after their family came to Chang'an City, because of illness, they have not been to Chang'an City for the time being, and the only people they come into contact with are the officials who came to distribute relief food!"

"Did you find out who it was?"

"Your Highness, it's Liu Rui and Zhang Quanming of Wannian County!" A official from Wannian County whispered.

"Did you find it?"

"Liu Rui and Zhang Quan are unwell, and they haven't been on duty for three days!"

After Yu Zhiqian heard it, his heart lit up, just now he heard that after this family came to Chang'an City, he did not enter the city, Yu Zhiqian was still happy, but now it seems that he has thought too much, and the two people named Liu Rui and Zhang Quan must have been infected.

"Immediately send someone to check the situation in the two of their homes, if the infection is confirmed, immediately put his house next door, and then check the people who have been in contact with his family recently, be careful, and go to the Ministry of Industry and the Ministry of Households to urge quicklime to prepare more, and prepare for a big cleaning in Chang'an City!"

"Whoa!"

After Yu Zhiqian finished his work, he quickly returned to a villa in Chang'an City, and Yu Zhiqian did not dare to go back in the East Palace, for fear of infecting Cheng Xiang and others, after all, Cheng Xiang was born in half a month.

"Your Highness, the sick cow has been found!"

Just entered the garden, Yu Zhiqian heard a good news, after hearing it, the whole person was happy, the sick cow was found, and the next test was going to be carried out, the ancient conditions were like this, there was no condition for you to develop and develop, directly start the human experiment, cowpox can only be prevented, not cured, so it is enough, at least to block the infection of smallpox.

As for the treatment of smallpox, Yu Zhiqian never thought about it, and smallpox has not been eradicated in later generations, let alone the current medical conditions, as long as cowpox can be proved to be useful, vaccinate people, and inoculate people from generation to generation, smallpox will be completely eradicated.

"Is this the cow?"

Wednesday nodded: "Your Highness is this cow, look here!" ”

After finishing speaking, he pointed to the middle of the cow's retreat: "This is it!" ”

After Yu Zhiqian observed it carefully, he did have some acne between the two legs of the cow, near some indescribable positions.

"Well, there shouldn't be anything wrong!"

Yu Zhiqian squinted his eyes, and after observing carefully for a while, he made sure that it should be right: "Li Sheng, take someone to Dali Temple or Chang'an County, Wannian County Prison, and find some death row prisoners!" ”

"Whoa!"

Chang'an City moved quickly, Liu Rui and Zhang Quan quickly found it, no accident, the two were also infected with smallpox, but the good news is that both of them are single dogs, no family, and they only went to the hospital once in the past two days, without too much contact, but even so, the residence was still sealed and disinfected with quicklime to ensure that it would not be contagious.

About an hour later, eight death row inmates were brought to the other garden, these eight death row inmates were all guilty of capital crimes, some were strong, some were relatively thin, Yu Zhiqian did not ask them what crimes they had committed, glanced at them and slowly said, "Do you want to live?" ”

The group of prisoners looked at each other, and for a moment they didn't know how to reply, so they could only keep their heads down and not speak.

"Now there is an opportunity before you to get rid of the death penalty! Of course, the death penalty can be avoided, but the living crime cannot be escaped, and it will be changed to exile for thousands of miles! ”

At this time, a burly prisoner looked at Yu Zhiqian: "Who are you?" Can we avoid the death penalty? Hum! I heard that the emperor is an old man, what kind of thing are you hairy boy! ”

"Presumptuous!"

Several officials immediately rushed over to beat up this arrogant guy, and after Yu Zhiqian heard it, he couldn't help but be stunned for a moment, and then smiled: "This palace is the crown prince of the dynasty, do you think I can spare you from the death penalty, Zhang Xiaojing's heinous crimes, I can forgive them!" ”

Hearing Yu Zhiqian's words, the death row prisoner's eyes lit up, and then he lowered his head and stopped talking.

"But I'm just informing you, it doesn't matter if you agree or not, just let you get ready, Qian Zhong, come here, get them vaccinated!"

"Whoa!"

Soon a sergeant tied up eight death row prisoners, and then brought the cow over on Wednesday, Yu Zhiqian glanced at them, held the cow down, and asked Wednesday to carefully cut the cowpox, and the pus inside immediately ruptured, and carefully took a small container into it, and more than a dozen cowpox were cut, and a little cowpox pus was collected.

"First cut the arm they said, not too wide, and then apply the liquid to it!"

"Whoa!"

The eight prisoners watched the whole time, not knowing what the prince was going to do, and struggled hard, but to no avail, the sergeant held them down and did not let them move.

"Don't move, or the wound will be a little big!" Qian Zhong took a knife and cautiously walked to the first prisoner.

"Kill it with fire!" Yu Zhiqian reminded.

"Whoa!"

Soon, after the poison was eliminated, he took a knife and cut a bloody wound on the arm of the first prisoner, and the blood immediately overflowed, and then quickly took something similar to a cotton swab and dripped cowpox pus on the wound.

"What is this? What is it? ”

Prisoner No. 1 was so frightened that he was about to cry, he was very scared, but no one around answered him, and after Qian Zhong was busy, someone immediately came over to bandage the wound, and then began to vaccinate the second person.