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Chang'an, Dongshi, Sickhouse.

The news of the advent of penicillin brought a huge flow of people to the ward,

Those who watched the excitement, those who were sick, and those who thought they were sick, lined up in long queues on the narrow streets.

Through the open door of the ward, one can see the strange scene inside——

Round glass bottles filled with transparent solution are hung on the beams with net bags. The mouths of the round glass bottles face down, and a slender rubber hose extends out and is connected to the back of the patient's hand.

The patients were all wearing masks, sitting on the bench, talking and laughing, or looking up at the round glass bottle with some concern.

This is a new type of medical device that appeared together with penicillin. According to Mr. Li Xiaolang, the academic palace, it is called intravenous infusion, and it can also be called,

hanging bottle.

The name is apt.

In a restaurant two streets away, an old man dressed as a Hu merchant, or Situ Zhi, picked up a walnut kernel from the dinner plate and threw it into his mouth with a smile.

teacher.

Beside him, a child with pale hair and complexion said softly, Those carriages.

I know.

Situ Zhi glanced at the carriages at the back of the ward. He didn't need to guess, he knew that the people in the carriages were the dignitaries of Chang'an who were suspected of suffering from syphilis.

Li Ang has already written in a scientific journal that penicillin is a specific medicine for curing syphilis.

For the sick and powerful, they want to recover their health, but also don't want to be ridiculed in public, so the best way is to ask Li Ang to secretly go to their house to treat the disease.

But Li Ang is not a little doctor with no connections, how can he be hired casually,

What's more, according to him, intravenous infusion requires professionals and professional equipment, and can only be performed in the ward. .

click.

The teeth crush the walnut kernels, chew,

Situ Zhi took a deep breath, pondering and savoring the slightest changes in the air.

Disease, was cured.

The drug called penicillin really dispelled the pent-up dead energy in the patients, allowing their bodies to continue to function.

Miracle.

A playful smile appeared on Situ Zhi's face. He rubbed his fingers and shook off the pieces of walnut sticking to his fingertips, Lian Xuanxiao is coming back soon.

The pale child blinked, Are we leaving Chang'an?

Um.

Situ Zhi nodded and said: It's a pity, if you give me another three months, no, it only takes one and a half months, I have the confidence to crack his medicine.

There will be a chance.

The pale child said softly: Next time, the teacher will win back next time.

win?

Situ Zhi raised his eyebrows and looked at his disciple with a smile, Do you think we lost this time?

.

The disciple didn't answer, but expressed his attitude by frowning.

No, this time, we didn't lose.

Situ Zhi turned his head and looked at the ward two streets away again, as if he wanted to see Li Ang busy in the ward through the brick walls.

My good apprentice, you still haven't understood the true meaning of illness.

Situ Zhi rubbed the other person's hair lovingly, and said with a smile, The essence of disease is transmission, exchange, and diffusion.

A person floating in the boundless deep space without any contact with the outside world will never get sick, but will only die of starvation, thirst, or old age.

When a person walks in the mundane world, he cannot avoid contact with the outside world.

Every time he eats, drinks, gets injured, or even comes into contact with animals and other people, he will increase his chances of getting sick.

He might get malaria from mosquitoes,

May get the willow disease from the gold-selling cave,

May suffer from blood carbuncle due to being cut by the blade,

You may have contracted leprosy, or leprosy, simply by passing through a certain village. The whole body is covered with bright red macules, the hair falls out, the limbs shrink, and there are large areas of edema or tumors on the body.

Do you still remember that we traveled to various island countries in the Endless Sea and recorded information about the types of diseases and population numbers?

Remember.

The apprentice nodded, In a sparsely populated and isolated island, there are relatively few types of diseases.

But if there is an epidemic of a non-fatal, persistent disease, such as leprosy, it will be difficult for them to stop the spread of the disease. For decades or hundreds of years, I have been plagued by this disease.

And island countries with larger populations and more frequent contact with the outside world have more types of diseases.

That's right.

Situ Zhi smiled with satisfaction: The more people there are, the more food and livestock we need.

It means that farming is more developed, and the distance between people and people, and between people and livestock is closer.

Humans have human diseases, livestock have livestock diseases, and only a very small number of diseases can be transmitted between the two.

But when this probability is magnified to tens of millions,

Livestock animals will inevitably transmit diseases to humans.

And the disease will inevitably begin to derive, change, and spread.

City,

large cities,

Large cities that are crowded and noisy, densely populated, and travel from south to north have become the best disease Gu altars.

He stood up, paced back and forth in the room, beaming with joy and said: Syphilis, flower willow disease, it's just one of them.

It is true that Li Ang has developed an effective new medicine, but he is completely powerless to suppress the disease and spread to all parts of Yu State along the Chang'an trade route.

People always shy away from medical treatment, let alone such an unspeakable disease,

There will always be people who spread the disease knowingly or unknowingly, and take root in corners that Li Ang and Yu Guo can't take care of.

And those newly born, more terrifying diseases,

With the development of Yu State, the concentration of population, and the construction of cities,

And become more and more, more and more uncontrollable.

Until, one or several diseases that can sweep the world and no one can control appear.

Situ Zhi danced and danced, looking excited and frantic, and muttered to himself: Meat eaters are despicable, Yu Guo will not realize this, and that Li Ang—I admit that he is amazing, he may be able to realize this. changes in

But it is impossible for him to stop the pace of Yu State's development and the construction of the city.

He could only choose to drink poison to quench his thirst, and follow Yu Guo to mend the mess.

We stand with natural selection, the one who makes the weapons,

And he is responsible for building shields and passive defense.

I don't know that if you keep it for a long time, you will lose it.

We will never lose this war.

Situ Zhi went to the window, overlooking the bustling streets of Chang'an outside the window, and said intoxicated: In my hometown, there is such a myth and fable.

The gods made a box and put all kinds of evils caused by people into it.

Hypocrisy, slander, jealousy, pain, disease, sorrow.

Because of thirst for knowledge, the box will eventually be opened, releasing various evils,

And the last hope of mankind will always be buried at the bottom of the magic box.

He turned around, rubbed his disciple's hair again, and said with a smile, Let's go. Let's speed up the process.

The disciple subconsciously stood up, Where are you going?

One of the centers of shipbuilding, river transportation and sea transportation in Yu State,

Situ Zhi stepped out of the house, his voice echoed in the room, Jiangnan.