The cow stepped on a piece of loose soil and its front hoof slipped, causing Princess Lingxuan to slid off the cow's back.
Just as the joy was about to turn into sorrow, Chunlei reacted very quickly. He took a step to the side, grabbed Princess Lingxuan's feet, and pushed her steadily back onto the ox's back.
She was so scared that she patted her chest.
"Oh, that was a close call. Chunlei, when we get back to Dong later, I will give you ten taels of silver."
"Thank you, Princess, for the reward." Chun Lei accepted it generously.
He also saved some money to marry a wife.
This was the eldest young lady's favorite thing to say every time she rewarded him.
After playing for an afternoon, the two women had a lot of fun.
Yu Yuanzheng also did not forget her children.
We also asked a few guards to carry the children onto the back of the cow so that they could experience the feeling of riding a cow.
Sharing happiness is worse than enjoying it alone.
The spectator Shangguan Ziqi kept smiling the whole afternoon.
Seeing his wife and children having so much fun, his heart felt extremely happy and peaceful.
These are the wife and children he will protect for the rest of his life.
After returning to the farm, Shangguan Ziqi asked Qingfeng to call Yang Zhuangtou over.
Afterwards, Yu Yuanzheng described what the cow she was looking for looked like.
"Don't worry, Madam Young Master. I promise to find it for you." Headmaster Yang was honored to accept this mission.
The next day he personally visited several nearby villages.
The farms around here are all owned by the noble families in Beijing, and they raise a lot of cattle.
That day he led two cows back to the farm.
When Yu Yuanzheng heard the news that Yang Zhuangtou had returned, she immediately ran to see the two cows he had brought.
"Uncle Yang, you are really smart. You found two cows in one day. These are exactly what I need. Did you buy them or borrow them?"
"Madam, I bought it." Yang Zhuangtou answered respectfully.
"Yes, yes, these two cows are kept on the farm."
These two cows happened to be cows who had just breastfed calves and were most likely to get cowpox.
Having cowpox is equivalent to having a vaccine.
The next day, Yu Yuanzheng planned to start the experiment.
Everyone argued for a long time about who would be the first experimenter.
"Madam, please use me as an experiment." Shangguan Ziqi was the first to sign up.
"Madam Young Master, let me go first." Qingfeng and Mingyue requested at the same time.
How could they let the eldest son come first? What do these subordinates do for a living?
If anything happens to Dajizi, they will be blamed.
"Zheng'er, how about I go first?" Princess Jing was the first woman to sign up.
She had asked Yu Yuanzheng for treatment before and knew her medical skills, so she felt very relieved.
Princess Lingxuan was puzzled, and until now she didn't know that the miracle doctor was Yu Yuanzheng.
"Mother, what are you doing?" Princess Lingxuan asked curiously.
"Hey, your sister-in-law Yuan Zheng got a secret recipe. Vaccinating us can prevent smallpox. She wants someone to test it first." Princess Jing explained.
"Really? I'll do it, I'll do it." Princess Lingxuan requested actively after hearing this.
Everyone was scrambling to grab the item, which Yu Yuanzheng found very funny.
"Okay, everyone stop fighting over it and let my husband come first. Don't worry, I am confident. After he has tested it, I will plant it on each of you." Yu Yuanzheng made the decision right away.
After confirming the personnel, Yu Yuanzheng started to take action.
Have a few guards hold a cow down and prevent it from moving.
Make a small cut directly on the cowpox under the cow's stomach and squeeze out the pus inside.
Dip a homemade cotton swab in it, draw a small wound on Shangguan Ziqi's arm, and apply the pus. It's that simple.
Four days later, Shangguan Ziqi developed a low fever.
The small wound on my shoulder became red and swollen.
Another day later, I started to have a high fever.
Yu Yuanzheng estimated it to be 38 to 39 degrees.
Not particularly strict.
Three days later, the fever gradually subsided.
Some small rashes and blisters appeared on her body. Yu Yuanzhen applied some medicine on her body and they disappeared in a few days.
During the entire process, Yu Yuanzheng prevented Shangguan Ziqi from contacting anyone and isolated him in a room.
She herself was also fully armed.
Try your best to avoid being infected.
In less than half a month, Shangguan Ziqi returned to normal.
Everyone was watching his reaction all the time.
This is smallpox, and everyone is afraid of it.
When he first developed the rash, the princess was very worried.
It looks very similar to the smallpox that people describe.
I was so worried that I couldn't sleep at night.
The daughter-in-law tried to comfort her many times, saying that nothing would happen, but she still couldn't let go of her worry.
It wasn't until Shangguan Ziqi gradually got better that she felt relieved.
During the entire process, Yu Yuanzheng carefully recorded his every reaction.
She felt that something might have gone wrong.
It shouldn't be so strict.
Most people would just have a low fever and recover after two days of rest, but he had a high fever.
My husband's physical condition is not bad, and his resistance should be good.
Come to think of it, the only issue is dosage.
She was only focused on smearing pus on the wound without controlling the amount.
Having learned this lesson, she will have to pay attention to the quantity next.
"Okay, I officially announce that from now on, you will never be infected with smallpox again in your life." Yu Yuanzheng happily announced to everyone.
"Sister-in-law Yuan Zheng, is it true?" Princess Lingxuan was a little bit incredulous.
"It is true, but it is not 100%. If the smallpox virus mutates, it will not be effective."
Yu Yuanzheng didn’t say anything very sure. Who knows if the smallpox virus will mutate?
"Ah, what is mutation?" Princess Lingxuan didn't understand.
"Mutation. The internal structure of the smallpox virus has changed. It's like a man changing into a woman. That's the biggest mutation."
"Oh." Princess Lingxuan still had a confused expression.
How can a man become a woman?
"Okay, my husband's vaccination was successful. Now it's our turn. Everyone needs to be vaccinated." Yu Yuanzheng announced.
"Sister-in-law Yuan Zheng, I'll go first." Princess Lingxuan was still the most active one.
Yu Yuanzheng did not use the children as the first batch of test subjects, but let the guards be the first test subjects.
This time she controlled the dosage.
The guards only had a low-grade fever for three days, and then they were all full of energy again, without even a rash.
Next came the women, including herself and the maids and servants who served her.
Finally, there are the children.
Hui Niang brought her son to be vaccinated as well, making a total of six children.
Yu Yuanzhen was still somewhat worried about vaccinating the children.
She had prepared some medicines in advance. If anything went wrong, she could use them to control the severity of the disease.
Now that adults have antibodies in their bodies, she doesn’t have to take care of the children alone during the vaccination process, but everyone can take care of them together.
All six children had a small cut on their shoulder. The cut was very small, and except for the little princess who cried twice, the other children did not even cry.
Considering that children are much smaller than adults, Yu Yuanzheng is more strict in controlling the dosage.
As a result, all six children started to have fever on the first day.
Lu Hui Niang's son Yang Cheng only had a low fever. He was the oldest and might have better resistance.
The four children in the palace have slightly higher temperatures.
But the little boy in Prince Jing's mansion had a high fever.
Princess Jing and Princess Lingxuan were extremely anxious.
"Zheng'er, why do each child react differently?"
Princess Jing looked at the child's red face and felt extremely anxious, fearing that something might happen.
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