On the second day of the seventh month, the two ceremonial halls.

As usual, Li Yuanjia sat honestly in his position and quietly listened to the bigwigs of Zhenguan discussing political affairs. On the surface, he sat upright and listened carefully, but he allowed his thoughts to fly freely in the time and space of 636 AD.

In the past half a month, he has become obsessed with the book "The Origin and Syndrome of Diseases".

If you look at it from the perspective of modern medicine, in fact, Li Yuanjia can't understand this medical book, after all, on the premise of not wanting to spend time learning traditional medicine, many of the things in it make him look like a book from heaven.

But what's interesting is the ancient and the modern...... Oh no, it should be said that it is the contrast between the present and the future.

For example, the narrative about Hong Kong's foot, the description of diabetes, and the arguments about southern miasma and "shooting" and "water poison" being infected by water sources all surprised Li Yuanjia - in this era, traditional medicine has such an understanding? And what surprised him even more was the understanding of allergies, although it only pointed out words such as "people have an inherent fear of paint, but they are poisonous when they see paint", but basically the essence of allergies has been said!

Whenever he finds such content, Li Yuanjia will record it in his book as soon as possible.

It's just that this process is quite difficult, after all, it is really not easy to find something useful for oneself from a thousand-year-old book, because for a future professional doctor, the value of this book itself is extremely low.

In fact, not only this "Treatise on the Origin and Syndrome of Diseases", but also the "Compendium of Materia Medica", which was blown into the sky hundreds of years later, not to mention the other parts, just a "human department", in the eyes of some people, is it not a joke?

The hair on the human body can be played with by Lao Li.

For example, the same hair, cut with scissors is called "hair", which is "bitter, warm, and non-toxic", and combed down is called "messy hair", which is "bitter, lukewarm, and non-toxic". And because "hair is bloodless", indiscriminate hair can treat nosebleeds, pulmonary gangrene vomiting blood, bleeding from the orifices, blood in urine, bloody pain, diarrhea in the stool, menstrual pain, and so on.

Therefore, for these ancient books of traditional medicine, Li Yuanjia can only look at them with a dialectical eye.

At the time of their appearance, these medical books were undoubtedly the world's top knowledge, and they often greatly promoted the progress of traditional medicine as soon as they appeared. However, after all, it was only at that time, and if it did not keep pace with the times, it would only be eliminated if it continued to improve and improve with the overall progress of medicine. So if, as many online novels say, the earlier the doctor, the more awesome he is, and if he gets the inheritance of an ancient medical book to beat modern medicine, then human beings simply stay in antiquity!

Therefore, for the book "Theory of the Origin and Syndrome of Diseases", Li Yuanjia can only read it little by little, and then understand it little by little, and at the same time consult other medical books in the collection, and then slowly screen the knowledge points that are useful to him, or can be used as a theoretical source in the future......

"Your Majesty, the outbreak of the epidemic in Kannai and Hanoi ......"

"Huh?"

was thinking about the "Theory of the Origin and Syndrome of Diseases", which was about to be sorted out, when a few words suddenly floated in his ears and eyes, which made Li Yuanjia, who was originally distracted, stunned.

Quickly turned his head to look over, and found that it was the future old man Fang Xuanling who spoke, Shangshu Zuo Servant stood on the court and said loudly: "This matter must not be delayed, and I implore Your Majesty to send medical officers to various places as soon as possible!" ”

"Accurate!"

Without too much hesitation, Li Shimin nodded almost immediately and threw out a word.

The emperor is enough for a quasi-word, and the rest will naturally have the corresponding officials to make arrangements. After all, it is indeed not something that the emperor should worry about which medical officer to send to the local area to guide the epidemic prevention.

However, Li Shimin was just worried, Li Yuanjia would not simply listen to it, but frowned slightly, and his brain began to spin rapidly.

The so-called epidemic, the explanation in Xu Shen's "Shuowen Jie Zi" is "the people are sick", which means that many people get sick at the same time. And if it is a large-scale outbreak, it is a "pandemic".

To put it bluntly, it is an infectious disease.

Therefore, when he heard Fang Xuanling say the word "epidemic", Li Yuanjia's face suddenly changed!

This thing, it's really fatal!

Especially in ancient times, when medical technology was extremely underdeveloped and the sanitary situation was extremely poor, once a pandemic of infectious diseases occurred, it meant that countless lives would die in a short time. For example, the plague epidemic that began in the Middle East a hundred years ago directly led to the decline of the Eastern Roman Empire, and the plague that broke out again a few hundred years later would reduce the population of Europe by a quarter, leaving behind the famous name of the Black Death.

That's why plague, along with cholera, will become one of the only two Class A infectious diseases that countries attach the most importance to in the future, and once it appears, it will be the highest alert.

Of course, in China where Zhenguan has been ten years old, Li Yuanjia will not care about these two diseases.

In ancient China, there was no true cholera, as Zhang Zhongjing said in his book: "What is the disease of cholera?" Answer: vomiting and benefit, this name cholera", the cholera mentioned here should actually be acute gastroenteritis. Basically, everyone agrees with Wu Liande's view that cholera was only introduced to China in the early 19th century.

As for the plague, Li Yuanjia is not very clear when China appeared, but he is sure that the Tang is unlikely to have a super pandemic like Europe - the Chinese at this time will not kill cats like Europeans and give rats the opportunity to breed; They don't think that bathing makes people sick, so most people still clean themselves when they have the chance; At the same time, ancient Chinese were more "polite", and most people would not defecate in the open on the street, or directly throw garbage at the door of their homes......

Moreover, in these years, the Tang Dynasty is vast and sparsely populated, the Vermilion Bird Street in Chang'an City is 150 meters wide, and the population flow is almost negligible, etc., which are all important reasons to prevent the outbreak of the plague.

Therefore, if the plague is to be epidemic in China, it will have to wait at least a few hundred years, for example, after the Song Dynasty, especially during the Yuan, Ming and Qing dynasties. When the population grows larger, the roads become narrower and narrower, the population flows more and more frequently, and the walls of the city are demolished, etc., the plague will eventually find its space in the land of China......

Well, that's a long way off.

However, if you want to talk about the most powerful infectious disease in ancient China, Li Yuanjia really knows it.

Typhoid fever, miasma, corpses, boils, and sores are the five infectious diseases that make the ancestors feel cold and frightened.

Typhoid fever is not the kind of disease caused by the future typhoid bacillus, but a general statement, which refers to the external fever disease, and it is also the most common epidemic disease in ancient China. At the end of the Han Dynasty, the epidemic broke out, and there were countless deaths and injuries, and it was at that time that the "Treatise on Typhoid Fever and Miscellaneous Diseases" appeared......

The other four, miasma, should be malaria; The corpse, also called the corpse, the flying corpse or the sunken corpse, etc., should be tuberculosis, that is, tuberculosis; furle, that is, leprosy; And the most well-known of all, smallpox, the only infectious disease to be eradicated in the future!

No matter which one it is, as long as the person is infected, it is Li Yuanjia's death who is helpless!

So watching everyone settle this matter in a few words, Li Yuanjia also knew that if he took action, he might be able to save thousands of people in the Tang Dynasty by just isolation, incineration or other means, but at this moment, he could only lower his head to ensure that he didn't make any sound!

Only the fists were quietly clenched.

"In my life, I will let "Infectious Diseases" appear here in Datang!"