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In the middle of the night, in the back hill of the school palace, in the glass greenhouse.

Li Ang put a large bucket of penicillin suspension into the freezer, Now, just wait.

On the table in front of him, there are more than a hundred ceramic petri dishes, which contain agar, staphylococcus bacteria extracted from syphilis patients, and a small piece of paper soaked in penicillin solution.

If all goes well, the penicillin solution soaked in the paper will kill the staphylococcus around it, forming a circle in the Petri dish.

call

Qiu Feng, who was also wearing a white coat, let out a long breath and rubbed his tired eyes.

A cup of tea?

With a palm move, Li Ang released his thoughts, causing the thermos placed in the corner of the greenhouse to levitate, and poured two cups of hot tea.

Thanks.

Qiu Feng took the teacup, and the two of them leaned against the table next to each other, took a sip of tea together, stared at the petri dish in front of them, and remained silent.

The long hours of hard work are all pinned on the ceramic plates at this moment.

Whoa whoa whoa whoa——

The insects in the forest in the back mountain were still shouting vigorously, and from time to time there were one or two night owls chirping.

By the way, Risheng.

Qiu Feng spoke first and broke the silence. The joint struggle during this period has made the relationship between the two of them a lot more harmonious. .

Is there any difference between this penicillin and allicin?

Well

Li Ang thought for a while. The antibacterial principle of allicin is that the oxygen atom in the allicin molecule can combine with the sulfhydryl group in the cysteine ​​molecule that is necessary for the growth and reproduction of bacteria, thereby inhibiting the growth and reproduction of bacteria.

Penicillin contains penicillane, which can destroy the cell wall of bacteria and play a bactericidal role in the reproduction period of bacterial cells, and has a miraculous effect on Gram-positive bacteria.

It should be said that allicin is not easy to store and transport. And powdered penicillin can be stored for a longer period of time.

Li Ang explained: Most of the allicin produced by the state capitals is used on the people in the state capitals, and cannot be transported in large quantities to other places as a bulk commodity.

There are still many relatively remote places with inconvenient transportation. When allicin is transported there, it has lost its medicinal effect.

Patients who want to take medicine must go to the capital city in person.

Penicillin is more convenient to store and transport.

Is it?

Qiu Feng's eyes lit up. The benefits of allicin are obvious. In Chang'an alone, the child mortality rate has dropped by more than 70% this year, and the maternal mortality rate has dropped by 75%.

For patients with blood carbuncle and other symptoms, the mortality rate has dropped by more than 80%.

If penicillin can be spread to all parts of Yu State, the average life expectancy of the people in Yu State can be increased by at least ten years, or even more!

The so-called hanging pot to help the world is nothing more than that.

Qiu Feng took another sip of the tea, feeling uncontrollably excited. He subconsciously glanced at the young man beside him who had created this miracle, only to find that there was not much smile on Li Ang's face.

drug resistance

When alien penicillin first appeared, dozens of units of penicillin could save lives. Pneumonia, puerperal fever, bacteremia, etc. were no longer incurable diseases, and the average life expectancy of the world soared.

For the first time in tens of thousands of years, humans have successfully resisted the domination of microorganisms,

With wisdom, hard work, and unity, we conquered the invisible enemy.

But bacteria are also evolving and adapting.

Generations of bacteria, or produce raw β-lactamases, which hydrolyze and inactivate penicillins,

Either the penicillin-binding protein, which is the target of penicillin in vivo, changes, or the penicillin permeability decreases.

The effective dose of penicillin has gradually changed from tens of units to hundreds of thousands or millions of units.

Even vancomycin, known as the last line of defense for mankind, has become precarious in the face of constantly iterative bacteria.

The number of deaths caused by antibiotic resistance in modern alien worlds is 1.27 million people every year!

Another 4.97 million deaths were linked to it.

This compares with 680,000 and 620,000 deaths each year from AIDS and malaria.

Antibiotic resistance is by no means alarmist. You must know that there are thousands of scientific research teams and millions of professional doctors in other worlds.

And here, there is only Li Ang.

These penicillins can be said to have been produced by him, who had plucked the seedlings and encouraged them to grow, countless years in advance, and crossed countless thresholds.

If he died early, or because of external factors, it would be impossible to establish a modern medical system and cultivate medical talents.

As a result, it will be completely out of control.

Are you saving people, or killing people?

Li Ang let out a long breath, and the burden on his shoulders seemed to be heavier than ever.

The torrent of the times came much faster than he imagined, and the time seemed to be completely insufficient compared to what he had to do.

He turned his head, saw the worried expression on Qiu Feng's face, and smiled slightly, It's nothing, I'm just thinking about the patient.

correct,

He changed the subject and said, Your family doesn't seem to come to see you much recently?

They,

Qiu Feng pouted, They are studying the microscope, and the family quarrels every day.

Li Ang raised his eyebrows, Arguing?

Because of medical matters.

Qiu Feng explained: Many Science members have got microscopes to observe everything around them.

A bachelor was the first to use clothing dyes to impregnate tiny, moving round worms to better observe them.

And imitate you, call those worms cells.

Fine, subtle also. Describe the size of the worm.

Sisters, children are also wrapped. It is described that the body of the worm has a layer of membrane, which is like the coating of the fetus.

Since then, many scholars have discovered that there are many types of cells with different traits.

Some cells will not die when exposed to water, but will die when exposed to hot water, to pure wine, and to allicin.

They made a lot of lists, guessing that these special cells are somehow responsible for people's diseases.

Behaviors such as boiling water, washing hands with pure alcohol, and taking allicin can kill disease-causing cells, so people will not get sick.

Qiu Feng took a sip of tea and continued: If this discovery is true, then the medical techniques and medical books we use now will undergo earth-shaking changes.

This is what my family is arguing about.

Whether to support it or to oppose it.

Should we explore a new direction, or follow the original medical principles.

That's it

Li Ang scratched his head. Although he also came from a family of traditional doctors, he is more familiar with the medicine in the memory of another world. What do you think?

I?

Qiu Feng tilted his head and thought for a moment, then slowly said: I think, no matter which road it is, as long as it can cure the patient, it will be effective.

As for the longer-term, what disputes over orthodoxy, ideas, and sects,

Give way to the real suffering of the sick.

Don't read the advertisement to see the curative effect?

Li Ang smiled, if everyone in the world could think like Qiu Feng, then he would have a lot less trouble in establishing an alien medical system in the future.

The two leaned against the table, chatting with each other while holding teacups. From the delicious food in Chang'an City, to where to go for the next winter vacation.

Li Ang is no longer the founding county uncle, and Qiu Feng is no longer the daughter of an imperial doctor.

They are just two doctors waiting for the medicine to come out, ready to help the patients.

clang clang clang——

On the table next to it, the delicate clock that Su Feng sent made a crisp sound, interrupting their chat.

Time is up.

Li Ang put down the teacup in silence, stepped forward, and came to the table.

He and Qiu Feng looked at each other, and they picked up a petri dish together, and slowly lifted the ceramic cover.