In the palace.

Lao Zhu and Queen Ma were very happy because their eldest grandson, Zhu Xiongying, was coming back today.

Moreover, during his trip to the palace, he led a successful vaccination experiment against cowpox and smallpox, proving that cowpox vaccination can prevent smallpox.

This is an unprecedented study, and its results will have a huge impact on humanity as a whole.

Lao Zhu would publish the results of this experiment to the world, and then popularize it, so that the people of the Ming Dynasty would be planted with the cowpox virus to fight smallpox.

From then on, people will no longer be plagued by smallpox.

Since the emperor's eldest grandson has been out of the palace for so long, Zhu Biao has been kept in the dark.

Now that he is about to come back safely, Lao Zhu and Queen Ma decided to tell Zhu Biao the news and tell him what his eldest son had done during this period.

Zhu Biao came to Lao Zhu's residence.

"Sons and daughters, please say hello to the father and the queen mother!"

"Biao'er is exempt!"

Zhu Biao could see from the eyes of Lao Zhu and Queen Ma that they were in a good mood today.

"Father, mother, why are you so happy? Do you want to share it with Biao'er? ”

Old Zhu laughed.

"It's still smart! There is great news for you today, however, there are some things that will leave you feeling unbelievable, and you need to be prepared. ”

Zhu Biao was even more puzzled and curious.

"Father, what is so mysterious?"

Lao Zhu said proudly:

"From this day forward, our people will no longer be plagued by smallpox, because we have found the best way to defend against it!"

Zhu Biao's eyes widened, and he was also pleasantly surprised.

"Father, this matter is so sudden, what kind of method are you talking about?"

Lao Zhu smiled and threw out five words.

"Vaccinia inoculation!"

Zhu Biao was taken aback again.

"Vaccinia inoculation? So the cowpox is from a sick cow? ”

Lao Zhu explained:

"You guessed it right! It's from a sick cow. To tell you the truth, for nearly half a month, Imperial Doctor Chen and his medical team have been doing this experiment. Vaccinia virus is inoculated against the experimenter, observed for a few days, and then the smallpox virus is given to the experimenter in a severely ill smallpox patient, and guess what? All 34 subjects survived unharmed, and they showed no symptoms of smallpox! ”

After hearing this, Zhu Biao was shocked.

"Father, this is amazing! It's unimaginable! ”

Queen Ma smiled and said:

"Biao'er, what your father said is right. Believe it or not, I'm also vaccinated against the vaccinia virus. ”

As she spoke, Queen Ma rolled up her sleeves and exposed her arms.

The scab on her arm where the cowpox was inoculated had only fallen off, leaving a small scar.

"Mother, it looks like you've been vaccinated with the vaccinia virus for a while."

Zhu Biao didn't know why his mother, who was the queen, did this, the more he thought about it, the more confused he became, it was too risky.

However, when his mind turned around, he also felt very relieved and looked forward to it.

"Father, if it is really like what you said, the smallpox problem that has plagued people for many years has been solved, then this time Imperial Doctor Chen and they have really made a great contribution! What a miracle! ”

Lao Zhu and Queen Ma both smiled from ear to ear.

"That's right! They have done a great job! Their names are also enough to go down in history. However, they were not the ones who came up with this solution, and they were not the ones who presided over this experiment! It's the one you would never expect! ”

Zhu Biao was even more stunned after hearing this, he always felt that there was something in his father's words, and it seemed to be related to his eldest son Zhu Xiongying.

"Father, mother, what do you want to say to your sons? Is there something to hide from your sons? Where did Xiongying go during this time? Could it be that he had something to do with it? ”

Lao Zhu laughed happily.

"Biao'er, you guessed it right again! The biggest credit for this research is your good grandson Zhu Xiongying! ”

Zhu Biao was excited.

"Father, is this true? What did Ying'er do when she left the palace? ”

"Of course it's true!"

Lao Zhu handed Zhu Biao the daily work report submitted by Wei Qing during this time.

"See for yourself what your good son has done! Be mentally prepared and don't get too excited! Ha ha! ”

Zhu Biao took over the daily newspapers and read them carefully one by one.

Lao Zhu and Queen Ma watched from the side and didn't bother him.

Looking at those working daily newspapers, Zhu Biao sometimes frowned, sometimes widened his eyes, and sometimes nodded and smiled.

After reading it, he was stunned in place.

"Oh my God! I really didn't expect these to be done by Ying'er! Ying'er is only eight years old, eight years old, he is still a child! ”

Zhu Biao said and shed tears of excitement.

Queen Ma walked over and patted him on the shoulder.

"Yes, when your father and I saw this, we also felt incredulous, but these are indeed things done by Xiongying, and I went to see him outside the palace."

Zhu Biao slowed down.

"It turns out that the young officer who led the Jinyi Guard to punish the wicked in Jiangning County last time was my heroic child!"

Lao Zhu said proudly:

"Biao'er, Xiongying has made a great contribution this time! Not only did it solve the smallpox problem, but it also helped us arrest a few dog officials, confiscate their money, and replenish the treasury! ”

Zhu Biao nodded with satisfaction.

"Father, what about Ying'er? Where is he now? ”

"Don't worry! He'll be back at the palace today, and he should be there soon! ”

As he spoke, a child's voice came in.

"Grandpa, grandma, daddy! The boy is back! ”

The three of them turned their heads together and saw that the person talking at the door was the child they thought about day and night, Zhu Xiongying.

Zhu Biao was the first to rush over, he squatted down and held Zhu Ying's shoulders with both hands.

"Xiongying, is it really you? You're back, my good boy......"

Zhu Biao hadn't seen this eldest son for more than ten days, and this was the first time he and his eldest son had been separated for so long.

He wanted to know where his son was, but Lao Zhu never told him.

These days, he is also very worried about his son, and he can only hear the news of his son's safety from Lao Zhu.

Zhu Biao was excited, tears rolling in his eyes.

"Ying'er, seeing that you came back safely, my father is relieved!"

Zhu Ying stretched out his hands and hugged the man who was kept in the dark, and comforted him softly:

"Daddy, don't be upset! I'm sorry, it's all my fault! I told my grandfather to keep it a secret for me and not to tell you about it. ”

"Well, Dad knows, you're afraid that Dad will worry about you."

Seeing this, Lao Zhu walked over and patted the shoulders of the two.

"That's it! Today is a day to be happy about, don't be sad for both of you! ”

Zhu Biao wiped his tears and smiled happily.

Lao Zhu said seriously:

"It's good that Ying'er is back! For the sake of the people of the Ming Dynasty and the complete eradication of the smallpox virus, the sooner the cowpox inoculation method is implemented, the better! ”

"Hmmm! Grandpa, Dad, let's call Imperial Doctor Chen too, and together we will plan the specific plan and spread it to the whole country as soon as possible! ”

"Good! Good! Good! This is your lead, so do what you want! ”