What kind of Journey to the West is this?

Jiang Banxia could tell at a glance that this flat-chested girl was not a good person, "I'm a professional!"

An Yanxia smiled and asked, "Then your use of the plague energy isn't very good either. You're relying entirely on supernatural powers to control it. It's really poor."

She really meant it.

Although An Yanxia is not a professional medical student, she often deals with various parasites and microorganisms - pinworms, roundworms, Heterozoans... as well as various fungi and bacteria.

As for why she, a tomb raider, had to deal with these things, the story had to start with a fossil that was indistinguishable from human feces and dog feces...

"Ah, yes, yes, you can do it, if you can do it, go ahead!"

Unfortunately, Jiang Banxia didn't buy it and started to act badly.

As she spoke, she took out a small white flag.

This thing isn't a national flag, but a magical instrument used to drive away the plague. It's similar to a soul flag; shaking it can drive away the plague within. This plague can transform into demons, ghosts, and heavenly soldiers, making it incredibly powerful.

But, if it is only used to spread diseases, it is very weak.

Yan Xia put her hands on her hips and said, "Then I'm really going to do it!"

Donghuang Suddenly Receives Jade Talisman: Chapter 123 [Vaccine Matter]

"How do you use this thing?"

An Yanxia took the white flag. This magic weapon came with an instruction manual, and suddenly an idea of how to use it popped into her head.

She waved the white flag, and light green plague gas flew out and turned into a ball of mist the size of a palm.

She had seen plagues many times, but this was the first time she had manipulated it as easily as with her own hands.

Seeing the girl's surprised expression, Jiang Banxia said proudly, "This is the Zhongfu febrile disease ancestral energy that I inherited from my ancestor. I guess you've seen it before."

"That's it!"

Yanxia wanted to snatch it and think about it carefully.

This plague qi is unusual; it's the "Ancestral Qi of Plague" used by the Heavenly Officials of the Plague Department to disperse the plague. Why is it called "Ancestral Qi"? Because all plague qi is indirectly generated by this thing.

Just like the plague spirit in the yellow gourd of the plague ghost, tracing back to its source, it was also born from this wisp of plague spirit.

But when it comes to power, the plague's ancestral energy is very insignificant. It has only one function: to drain yin and exhaust yang, disrupt the balance of yin and yang in the body, and destroy the qi of the nutrient and defensive systems.

In simple terms: reduces immunity.

An Yanxia pondered for a while, and Jiang Banxia, a little impatient, urged, "Aren't you going to do it? Why are you dawdling?"

"I don't know how to use it. Please teach me two spells from the Plague Department."

Jiang Banxia was shocked. Are you here to get some magic for free?

She had no choice but to reluctantly throw the jade slips on both sides over. "One is the secret text for the plague, and the other is the secret text for smallpox vaccination. Remember to return it to me after you finish reading it. It costs a lot of money."

This god of poverty and plague talks about money every three sentences.

An Yanxia got something for nothing and learned two spells for free.

She took the jade slip, glanced at it a few times, and roughly understood that the "Secret Text of Plague Prevention" was about the principles of magic, while the "Secret Text of Vaccination" was about the specific operations.

The spells of the Plague Department all revolve around the ancestral qi of the plague. They transform the ancestral qi of the plague by adding external objects. The specific process is a bit like a balance.

For example, if Yanxia adds a wisp of wood energy to the plague ancestral energy, the plague energy will have the light and frivolous properties of wood energy, allowing it to flow with the wind. However, due to the blessing of wood energy, the plague energy will be weakened or even eliminated when it encounters the sun or flames.

Of course, it is not that simple in practice, and it also involves the mutual generation and restraint of the five elements.

The Secret Book of Vaccination is quite interesting, as it specifically talks about how to design diseases such as smallpox, chickenpox, and acne.

"Shennong's Herbal Classic" divides medicines into three grades: high, medium and low. This "Secret Text of Vaccination" also divides various diseases with similar symptoms into three grades, with "smallpox", a highly contagious and lethal disease, being regarded as the top grade.

Yan Xia laughed and said, "It really is a natural killer!"

Jiang Banxia was getting bored waiting, and yawned, "If there's a drug that kills people, there must be a drug that saves people. My Plague Department kills people, and you, Miaoyan Palace and the other Tian Hospital, save people. We each do our job."

Yanxia laughed like a little fox, "I think the Plague Department can do more than just kill people."

Jiang Banxia was puzzled. The plague department was responsible for spreading diseases. If it didn't kill people, would it save people?

The girl's answer was beyond her expectations.

"I think it can not only save people, but also save many people. From now on, there will definitely be disputes between the Plague Department and the Heavenly Hospital."

Yan Xia shook her head slightly, with only two words in her mind: vaccine.

.............

Vaccines are the seeds of disease. When the disease is still weak, the human body can resist it. As the human system accumulates experience, it can evolve a mature defense mechanism. This way, even if the disease becomes more powerful, it can be resisted with relative ease.

This is covered in middle school biology classes. Traditional Chinese Medicine also talks about "Nutritional and Defensive Qi," which is a similar concept.

This world is vastly different from Earth, and the human body is also composed differently—in this world, people and everything in it are born from "one qi," a concept science simply doesn't make sense. However, the logic behind the human body's defenses against disease is similar, with the concept of "nurturing and defensive qi" also present.

This was also the motivation for An Yanxia to start reforming the plague spell.

"Don't make noise, I'm making up a spell!"

Jiang Banxia exclaimed in surprise, "You little fellow, you may be as small as a five-foot carrot, but your ambition is as high as the sky!"

A savior from Miaoyan Palace who doesn't even know how to spread the plague says to the plague messenger from the Plague Department: She is making up a spell to spread the plague?

Who would believe this?

Yan Xia said, "Don't be unconvinced. Do you have a test subject for me to practice on?"

Jiang Banxia asked in confusion, "What is an experimental subject?"

Yan Xia said: "It is to verify the effect of the plague on the subject, preferably a living person."

Jiang Banxia frowned and looked at the girl unfriendly.

"Heretical way!"

"How is this unorthodox?" Yan Xia wanted to hit someone. What's the matter? To develop a new drug, you have to do some human experiments to verify its effectiveness, right?

She asked in return, "Then did you all come up with so many spells in the Plague Department for no reason?"

Jiang Banxia took out a stack of paper figures and scattered them on the ground, and these paper figures all turned into real people.

The Plague God Girl frowned and said, "We all use this. This paper man is transformed, and his internal organs, limbs and bones are no different from those of a real person."

"Furthermore, when the plague reaches these paper figures, the speed of change will be accelerated a hundred times, making it easier to see the power and changes of the plague."

This spell is truly amazing. From now on, I won't even need a cadaver teacher when I study medicine.

Yanxia coughed twice, indicating that she was about to start her performance.

Waving the flags, Yanxia chanted the Five-Knife Plague Curse. With a flash of green light, a wooden sword flew out from the liver, bringing with it a little wood energy.

Then, golden light and red light flashed respectively, which were a wisp of evil Gengjin lung energy and a wisp of restless thoughts from the Niwan Palace.

Jiang Banxia rubbed his eyes and said depressedly, "You learn so fast!"

It hadn't even been half an hour, and he had already mastered the secret code of the plague...

Three powerful blades flew into the plague energy and vanished into thin air. Yanxia chanted the plague-moving spell, forcing the plague energy into the nostrils of the easternmost paper figurine.

Yanxia was still curious about whether this "paper man" was realistic, and then she saw the paper man start coughing.

Jiang Banxia squatted down, opened his Dharma Eyes, and said speechlessly: "Your magic is not working. This is just a mild cold."

Over there, the girl smiled and said, "Don't be impatient, don't be impatient. Just keep watching!"

Jiang Banxia took another look, but was stunned.

The plague's energy penetrated into the paper man's nostrils and turned into a ball of green and red plague gas, causing diseases in the respiratory tract and lungs.

This is normal, but...

The second paper figure also began to show the same symptoms.

Then came the third and fourth. In just a moment, all the paper figures on the ground caught a cold!

Jiang Banxia studied it for a long time, finally understanding it. She couldn't help but say, "The Metal Evil causes lung disease, while the Wood Qi provides lightness and agility. Then the Fire Knife refines the Metal Evil, weakening its power and alleviating the disease. A portion of the Metal Evil is refined away, transforming into Gui Water. Gui Water regenerates and nourishes the Wood Qi, benefiting its nature."

It's a headache to listen to all this rambling, but to sum it up the meaning is simple: reduce the risk of disease and increase the spread of disease.

But Jiang Banxia still shook his head and said, "Your spell is quite interesting, but it's useless. It can't kill anyone, so it's rated as low-grade at best."

Sure enough, after a while, the colds and flu on these paper figures all healed on their own.

Yan Xia was speechless and said, "Is it true that only diseases that kill people are good?"

"We are doing our best to help others. Every year, people die from illness, but how can you kill people with this magic?"

An Yanxia said, "This isn't something you're going to use to harvest lives to complete your performance goals. I was chatting with Doctor Xiong earlier, and Tian Hospital doesn't seem to have any similar vaccine proposals."

Jiang Banxia didn't understand.

Yan Xia pointed at the paper figures on the ground and said, "If you give these people a cold, you'll understand what I mean."

Dong Huang suddenly receives a jade talisman: Chapter 124 [Yuqing Daochang]

Jiang Banxia was skeptical.

She had just examined the plague, and it was just a very mild cold.

If this kind of disease were seen by the doctor in the Tian Hospital, he might praise the God of Plague for being so merciful.

But she is in the Northern Division of the Plague Department.

Beisi represents winter plague, which kills in autumn and winter. It is the most serious and fatal disease.

She would probably not even look at this kind of cold.

——The lethality caused by the Zhongfu warm disease ancestral qi is probably stronger than this cold.

An Yanxia sat down on the chair, ate some snacks, and said vaguely, "You try it. I dare say: the bloody storm in the Plague Department begins today."

Seeing that she was so sure, Jiang Banxia retracted his prejudice and took out a porcelain bottle.

"This time, the bottle contains 361 diseases and 472 illnesses that I refined. Which one do you want to use?"

Yanxia was stunned to hear so many types of diseases.

No wonder he could become a seventh-rank plague-dispersing messenger...

"It only works for colds and flu, and I don't see any effect on other things."

"can."

Yan Xia added, "Find a control group."

“What is a control group?”

"It's just taking the body of a person who has never been vaccinated."

"Oh."

Jiang Banxia nodded and threw out another paper man.

She chanted a spell, and a green light flew out of the bottle and landed on two of the bodies.

"and then?"

"Wait."

In the smoky summer, I drink tea leisurely without rushing or slowing down.

Jiang Banxia frowned slightly and watched the green light fall on the two people. There was no difference, both were coughing.

But after a while, one of the bodies stopped coughing first.

The other one was coughing constantly.

"This is......"

Jiang Banxia was slightly stunned and asked in confusion, "These paper figurines are identical in every way, so how could one of them heal first? Could it be that I've missed something?"

After waiting for the magic power of the two bodies to dissipate, she immediately repeated the previous experiment, taking one that had been infected with the Anyanxia plague and one that was completely healthy.

The result is still the same.

"Is it the Yingwei Qi that has changed?"

An Yanxia nodded and said, "Indeed. I call this method a vaccine. It's a plan to fight poison with poison."