After being vaccinated with cowpox, ten death row prisoners were immediately forced to enter Qingtian County to contact the patients. The results showed that the effect was excellent. After contacting the patients for many days, there was no sign of infection. Based on the onset of smallpox this time, it can almost be concluded that they had antibodies on them.

After proving the effect of vowel, Li Shimin and others were also very excited. Fang Xuanling had collected a lot of cows before, all of which were gathered with cows with vowel. He deliberately allowed them to get vowel and then took out pus as material for vowel.

The first batch of doctors who grew vaccinated were Sun Simiao and others. They were all doctors organized by Li Shimin and were preparing to enter Qingtian County to treat smallpox patients. In order to ensure their safety, growing vaccinated popurance is also necessary. After these people got the immunity of smallpox, they immediately began to enter Qingtian County to vaccinate vaccinated people who did not have smallpox symptoms. In addition, there are troops blocking Qingtian County, and they will also vaccinate vaccinated one after another.

Li Xiu originally thought that vaccination can only prevent smallpox, but Sun Simiao found through observation that vaccination can actually treat smallpox, because after infection with smallpox, there will be a 12 to 14-day incubation period, and the time for vaccination with vaccination with vaccination is just a little shorter than the incubation period of smallpox, so as long as vaccination is timely, smallpox can actually be treated. This is somewhat similar to later rabies vaccines, except that the incubation period of rabies is longer.

Another thing to be happy about is that smallpox was successfully restricted to Qingtian County. Although some patients suspected of smallpox were found around, they were later found to be misdiagnosed, which also made the whole Tang Dynasty feel relieved. Later, Li Shimin promoted the method of growing cowpox to calm people's hearts and also made Li Xiu's name famous all over the world again. However, Li Xiu never cared much about such things.

Seeing that everything was on track, Li Xiu also missed his wife and son at home, so he spoke to Fang Xuanling and returned to the city. Fang Xuanling also knew that Li Xiu's identity was special, and even Li Shimin would not force him to do anything unless he agreed himself, so Fang Xuanling immediately agreed and sent someone to send Li Xiu back to Chang'an City.

Princess Pingyang's mansion is located in the southeast corner of Chang'an City, not very far from Qujiangchi. It is now also Li Xiu's home. When he returned home, Princess Pingyang and Yi Niang also came to greet her, but she did not take care of the children. After all, in this case, the children should try to minimize going out, especially Li Xiu had just returned from outside the city and was so close to Qingtian County, so they were all very careful.

Li Xiu was also anxious to see his son. After returning home with his wife, he immediately took a shower and changed his clothes. Then he entered the inner house. As a result, when the two little guys saw him, they were a little stunned. The older Peace Anlang was fine, but after seeing him for a while, he recognized him. He opened his fat little hands and asked Li Xiu to hug him. However, Jin'er, who was only half a year old, looked at Li Xiu for a while with his big eyes open, and he refused to hug him. He had only been missing for a month, and he forgot Li Xiu's father.

However, the child had no memory at all, and he could forget it quickly. Li Xiu was patient enough. After holding Ping Anlang and Jin'er for a while, the two little guys never accepted the child again. Especially when Li Xiu played the game of throwing sticks with the two little guys, the two little guys crawled on the carpet quickly, and the crisp laughter kept ringing. Unfortunately, it took not long to play, Li Xiu was taken out of the room by Princess Pingyang and the Yi Niang, one by one. In their words: I have never seen a father who ruined his son like this!

After lunch, Li Xiu took out a porcelain bottle and solemnly said to Princess Pingyang and Yi Niang: "Madam, this is the cowpox powder I collected. As long as I plant this, I will never be afraid of getting infected with the sky in the future!"

Although it is convenient to use cowpox pus directly, it is too toxic. Moreover, the newly removed cowpox pus may also contain other bacteria. Therefore, people who use dried cowpox powder to grow cowpox now.

"That's great. During the period when you are away, the name of cowpox has spread throughout Chang'an. Now everyone is praising the merits of husband. However, I heard that the production of cowpox powder is limited. Many princes and nobles are willing to pay for money, but no one sells it!" The lady in the Yi Niang couldn't help but lit her eyes when she saw the porcelain bottle in Li Xiu's hand. She thought that if she could produce cowpox powder at home, it would be a huge profit.

"Hehe, it's hard for others to get money, so it's not difficult for me to come. Although this bottle is not much, it's enough for our family and some close friends to them to use. My wife, please discuss it and see who needs to be fed acne, and then gather people together. Especially for the servants who usually come into contact with our son, they have to plant cowpox all!" Li Xiu said at the end, a solemn expression appeared on his face. This bottle of cowpox powder was kept privately for his family to plant first.

"What my husband said is that you can feel at ease with cowpox as soon as possible. I'll let someone arrange it now!" Princess Pingyang nodded in agreement when she heard this.

Although Li Xiu's approach is a bit self-contained, Li Xiu originally thought of the method of growing cowpox. If Li Xiu was a little bit unfair and did not offer this method, he secretly produced cowpox powder and sold it as a drug, it would definitely be a huge profit. However, Li Xiu did not have such a plant. Now he took some home and used it for his family first. Even if everyone knows it, he would not say anything.

Then Princess Pingyang called Yuechan and discussed the first batch of vaccinated cowpox with Yi Niang. Then Yuechan went out to summon people. At this time, Li Xiu took out a small box and opened it. After it was opened, there were several special knives inside. There was also a porcelain bottle with a label of "alcohol". This was the alcohol produced by Li Xiu before. Due to the grain output, the alcohol production has been low and can only be supplied to the army. This time, Li Xiu also used the smallpox issue to get a few bottles.

"Madam, roll up your sleeves and I'll help you get the first acne!" Li Xiu smiled and picked up a knife in the box, then disinfected the sanitation with alcohol.

"Honey, have you planted it?" What Li Xiu didn't expect was that Princess Pingyang and Niang Yi asked almost with concern. Then the two of them looked at each other awkwardly, but they both laughed out loud.

"Don't worry, I've grown cowpox before I came, and I've already grown scars now!" Li Xiu smiled and rolled up his sleeves and saw a blood scab the size of a soybean on his right arm.

Originally, Li Xiu should have been vaccinated with Sun Simiao and the others, but there was too little cowpox powder at that time, so he gave the opportunity to a soldier who escorted the doctor. After all, with the outbreak of smallpox, Qingtian County was also in chaos. I heard that even the county magistrate died under the smallpox, so Sun Simiao and the others also needed the protection of the soldiers, and one more person would be more safe.

"Husband, will this acne affect feeding the child? Now Ping Anlang and Jin'er are still eating milk?" But at this moment, the lady in the air suddenly said with some concern. They are still in the feeding stage. Although there is a wet nurse, they will feed the child themselves, because in the eyes of mothers in this era, only the children are raised by themselves will be closer to them in the future.

"This..." Li Xiu was also stunned when he heard this. After thinking for a while, he immediately thought of a solution and said, "This is easy to deal with. Don't feed the children after you have grown cowpox. Anyway, there is a wet nurse at home. As for the wet nurse, let them eat acne again after a while!"

"It's better that Sister Yi and Husband are considerate. Let's get acne for me first. Sister Yi is weaker, so I'd be mentally prepared." Princess Pingyang first praised Sister Yi and Li Xiu when she heard this, and then offered to be the first to accept the acne. She was not fighting for anything, but she and Mother Yi were both nervous for the first time.

"Everyone is the same first, but since my sister takes care of me like this, then my sister is more respectful than obedient!" The lady in the air smiled and said, then stood aside and watched Li Xiu suck Princess Pingyang.

There is really no technical content in acne. When she was vegetating acne for Sun Simiao and others, Li Xiu had already mastered it. At this time, she was also familiar with it and quickly helped Princess Pingyang grow cowpox. However, when the lady in the clothes saw that she wanted to cut a wound when she vegetated acne, she was also a little scared. However, thinking about the terrible smallpox, she finally closed her eyes and asked Li Xiu to help her grow cowpox.

At this time, Yuechan also gathered the first batch of servants in the family who had consumed acne. Most of them were close to servants in the inner house. Li Xiu also helped them get acne one by one. However, Princess Pingyang and the others were probably wrong. When the group of servants had grown vowel, there was still a little cowpox powder left in the porcelain bottle.

"There is a little left. Why not go to the palace tomorrow to help your father grow cowpox too!" Princess Pingyang suggested when she saw this. She always cared about her father who was under house arrest in Da'an Palace, and would think of Li Yuan if she had anything to do.

"No, when the cowpox powder was first made, His Majesty asked someone to plant it for the Supreme Emperor." Li Xiu said with a smile. All the cowpox powders had to pass through his hands before, so he knew the whereabouts of these things than anyone else. Moreover, although Li Shimin put Li Yuan under house arrest, he was unwilling to make people say that he was unfilial, so as long as Li Yuan did not compete with him for power, he would be extremely filial.

The wardrobe next to her felt soft when she heard the conversation between Li Xiu and Princess Pingyang. However, when she thought of her father, she couldn't help but feel angry and did not speak in the end. However, when Li Xiu saw her, she smiled. The remaining cowpox powder in the porcelain bottle was enough for two or three people to use, and it was nothing to plant it for Pei Ju in advance. In addition, he also thought of a person, who should need cowpox powder more than others.
Chapter completed!