The Song army broke through the city walls from the most unlikely point and advanced along the city walls at great speed, which made the defense line laid out by the Yuan army useless, and the entry of the navy army also divided the city into several areas, and the plan to use the city walls to survive was completely frustrated, and the danger of being surrounded by the city was completely frustrated.

"Wanhu, the enemy army has been killed along the royal street, and our army has suffered heavy casualties, and it is difficult to resist." Deputy Wanhu Li Xiaolan Xi hurriedly entered the mansion and said.

"You immediately order Cataoba to lead Ding Zhuang with 3,000 to stop it, and you must repel the Song army and hold Luocheng." Zheng You was shocked.

"Wanhu, those Ding Zhuang defected in battle, killed Catawba, opened the Donghua Gate, and let the Song army enter the city." Li Xiaolan shook her head and smiled bitterly.

"Oh, where is Daru Huachi?" Zheng You asked again.

"When he saw the Song army entering from the south, he led his own soldiers to protect a large number of property and retinues and went to the north gate." Li Polan Xi said angrily.

"This bastard, he's running fast! Those wastes have been soaked in wine and softened to the bones, and the golden silk has worn out his courage, and he can't lift a knife or gun at all! Zheng You was angry and anxious but helpless, and he was more worried that once he opened the north gate, the Song army would take the opportunity to enter the city, and even the last place of refuge would be gone.

"Wanhu, let's go, the Song army is not far away, and those newly requisitioned military households can't resist for a long time. And the southerners in the city rebelled one after another, blocked the streets, and assisted the Song army in chasing and killing the scattered soldiers! Li Polan said urgently.

"Where are we going to run? Now the city has been surrounded by groups, and there is nowhere to go! Zheng You sat down, he didn't expect that the Jiangsu and Zhejiang regions would be lost in just two months, and all the 40,000 households of the town army were annihilated, and he had conquered nearly 20,000 men from the Mongolian and Semu people in Hangzhou and nearly 20,000 men from various military households to defend the city, but it had just started the war and had collapsed, and now the escape route was also cut off, so it can be said that there is no way to go to heaven and no way to go to the sea.

"Wanhu, at present, only a large number of enemy troops have not been found outside the northern city, and there is still the possibility of breaking through, as long as we rush to the outside of the city with fast horses and light horses, we can collect ships and go to Jiangbei, and the soldiers of the Song army are not yet able to touch there." Li Polan Xi persuaded.

"Song Jun left the north gate alone, wouldn't it be a plan?" Zheng You was a little skeptical. This is also a common siege tactic of the Mongols, he naturally knows very well that if he goes out of the city at this moment, he may be pursued and killed, and at that time, the army is defeated like a mountain, and there is no power to fight back, only the whole army is wiped out.

"Report, the officials and people in the city and the defeated soldiers gathered at the north gate to open the city gate and go out of the city, and the noise was raised, and the soldiers defending the city couldn't stop it, and asked the general to show it!" At this time, a sergeant came in and said.

"Those who trespass on the city gate are guilty of the same crime as collaborating with the enemy, and they will be beheaded!" Zheng You ordered.

"Report, General Hangzhou Daluhua Chisuo Bazhen ordered to open the Genshan Gate, and the thousands of households guarding the gate did not dare to prohibit it, and the city gate has been opened!" Before the others left here, another sergeant said.

"Immediately order them to pull up the drawbridge, close the gates, and don't fall for it!" Zheng You was shocked. I secretly hate that this thing has to eat the first share, and if you escape, you have to take the lead, and its running army is unstable, and this battle can't be fought.

"Wanhu, it can't be closed, and the soldiers defending the city have also been swept away by the defeated army!" The sergeant who delivered the letter said with a sad face.

"Wanhu, the Song army has crossed the Liubu Bridge, and the forward is not far from Wanhu Mansion."

"The enemy army has entered the city river and wants to cut off our retreat!"

"Wanhu, the Song army has occupied the outer city wall and is coming to Benluo City!"

"It's too late for Wanhu to go, let's go!" The bad news came one after another, and Li Polan Xi said urgently.

"Okay, break through the whole army!" Zheng You also knew that he couldn't do anything, gritted his teeth and squeezed out a few words.

Zheng You and Li Polanxi each hurriedly assembled their own troops and went out of the house to the north gate on the royal street, only to see that there were people running north in a hurry along the way, they were either riding horses or riding cars, helping the old and the young to call their fathers and mothers, and there were many wounded soldiers lying on the side of the road without rescue, and no one even looked at them when they walked around. But who would have thought that a few days ago, they were still showing off their might in the city, making a fortune and making a windfall.

The further you go, the more chaotic it becomes, and the people who can live in Luo Cheng are either rich or expensive, and the escape is also like moving, not only are the pack horses carrying gold and silver, but the carts behind are also pulling large bags and small bags. Everyone scrambled forward, and no one would give way, blocking a royal street, but there were still people who kept joining the fleeing team.

"Song Jun is catching up!" Suddenly, someone shouted from behind, and the sound of musket fire was like a burst of fire, like water poured into a pan of oil and exploded. Because everyone knows that the Song army has always adopted a policy of exterminating the Mongols and Semu people, all officials and officials are executed, and the female dependents are closed; The merchants' goods were confiscated and ended up in hard labor. So everything is just running for their lives, the cars blocking the road are overturned, and even swords and guns are killing each other.

Zheng You and Li Xiaolanxi couldn't care much at the moment, and led the guards to 'kill' a bloody road in the crowd, rushed out of the city gate, and soon caught up with Hangzhou Daluhua Chisuo, who went out of the city first. But the two did not feel cordial when they saw it, but resentful, at the beginning of Hangzhou Wanhu Mansion four thousand households were annihilated, in order to defend the city, he forced the city of ten thousand households, thousands of households belonging to the slaves and personal soldiers are incorporated into the army to defend the city. But at the moment, he retained hundreds of his direct personal soldiers, protecting his family and belongings and rushing out of the city first.

The two looked back, only to see that the Song army had appeared at the head of the city, and the fleeing crowd of people who swarmed out kept falling under the rain of bullets of the Song army, and the fleeing crowd still rushed to the suspension bridge like crazy, some people were squeezed off the suspension bridge, and some saw that there was no way out and jumped into the moat desperately, and were washed away by the rapid water. But they can't help themselves. But they fled no more than ten miles before they saw dust in the southeast, and the cavalry of the Song army killed them from the flank......

……

There were constantly signal soldiers coming in and out of Zhao Yu's temporary palace, and there were more and more small red flags on the sand table in front of him, but the blue flags were constantly being pulled out. The armies seized the city walls with the force of devastation, drove the enemy's defeated troops out of the city, and by the time of the battle, they had already controlled the city gates and important places in the city, and occupied the palace. Zhang Shijie ordered all departments to move to the stage of clearing out the remnants, cleaning up the battlefield, sealing the warehouses, and pacifying the people. In the evening, the battle was over, the whole city was curfew, and all the armies sent patrols to prevent any routs from causing chaos and ruffians taking advantage of the fire to loot.

There was nothing to do overnight, and Zhao Yu ordered Lu Xiufu to temporarily lead the Lin'an Mansion Yin, and Ni Liang as the Lin'an pacification envoy. In the early morning of the next day, Lu Xiufu led the civil and military forces into the city to pacify the people, deal with the aftermath, and count military merits. Five days later, it was decided that the 1st Brigade of the Protector Army would be responsible for the defense of Lin'an City, the Pro-Army Brigade would take over the vigilance of Luocheng and the Imperial City, the 2nd Brigade would be transferred to Xiuzhou, the 3rd Brigade would be transferred to Qiantang and Renhe counties, and the 5th Division would be transferred to Shaoxingfu.

Political affairs and military affairs were handed over to Lu Xiufu and Zhang Shijie, and the city was not ready, so he could only stay in Qiantang, but he was not idle, busy comforting the wounded soldiers in the medical hospital and guiding the ambulance work. Since this was an urban offensive and defensive battle, fierce melee battles took place between the two sides, and arrow wounds and knife wounds accounted for the majority, but this time it was different from the previous ones that many people contracted the disease of 'boils', resulting in the death of many wounded.

After hearing Hao Yuntong's introduction, he learned that as early as before the Wei, Jin, Southern and Northern Dynasties, there were historical records of the symptoms of this disease, and it is said that the Prince Zhaoming of the Northern and Southern Dynasties died of the disease caused by trauma. In the former Han Dynasty, there was a book called "Jin Chuang's Fang", in which Jin Chuang's was an open injury caused by a metal weapon, and the boil refers to the symptoms caused by the injury. It usually manifests as muscle tension, accompanied by spasms and convulsions of the hands and feet, which is clearly different from ordinary traumatic infections.

But Zhao Yu's heart suddenly hung up after seeing the patient. It is seen that patients often have restlessness and irritability, and the symptoms are often trismus and stiff neck muscles. Within hours, the spasms spread to other muscles. Facial spasm can cause lips to constrict, or corners of the mouth to retract into a spasmodic "wry smile". When the disease continues to progress, the general state of persistent tonic state presents episodic aggravation, accompanied by severe cramp-like pain, dyspnea and profuse sweating, which is obviously 'tetanus'!

In modern times, Zhao Yu played outdoors when he was a child, and his hands and feet were accidentally punctured by rusty things, and his parents would always shout for injections. When he went to work, he worked with steel all day long, and he inevitably got bruised and scratched, and he still had to get this 'tetanus shot' when he went to the hospital to treat the wound, and he also learned about the danger of this disease after seeing a worker who had an ill disease, which is a disease with a very high mortality rate.

According to Zhao's knowledge, the reason why tetanus is difficult to treat is because of its particularity. Unlike common infections, Clostridium tetani, the pathogen of tetanus, is an anaerobic bacterium. The bacteria can only survive in environments deprived of oxygen, such as in the intestines of humans and animals. When exposed to adequate oxygen, Clostridium tetani undergoes morphological changes and sprouts. Clostridium tetani is sporulous and transmitted by faeces, survives in soil for decades, and is highly resistant to high temperatures, including boiling water. As a result, Clostridium tetani is widespread in both natural and residential environments.

However, Clostridium tetani itself is not aggressive and only multiplies in necrotic and hypoxic tissues. But it produces a neurotoxin to which the body is extremely sensitive and is released when the bacterium is lysed. The neurotoxin released is generally known as tetanus spasmodic toxin, which is extremely toxic, second only to botulinum toxin, and causes the symptoms to be muscle contraction, but not normal relaxation, and maintain a tight state for a long time. Patients often end up dying of asphyxia and heart failure due to respiratory failure.

In fact, it takes several special conditions to get tetanus. The first, of course, is that the wound is contaminated with Clostridium tetani or its spores. The second relates to the morphology of the wound, which is generally open and deep, and it is the trauma with tissue inactivation that is prone to the formation of an oxygen-deficient environment that can cause tetanus. These two conditions are met before Clostridium tetani can invade the human body smoothly.

To Zhao Yu's surprise, although the ancients could not understand these pathogenic principles of tetanus, they also found some patterns through observation. They found that the mortality rate of soldiers who were seriously injured by fouled guns, spears and arrows was very high. Since you can't destroy the beast, it's better to drive the beast into the enemy's camp. Therefore, in addition to helping to prevent the occurrence of tetanus, these laws also have an important role - killing the enemy.

According to the understanding of the ancients, if you want Clostridium tetani to play the greatest role, you must create a wound, and with such a standard to find, there is no doubt that puncture weapons are more suitable for the use of tetanus. The most typical is a bow and crossbow weapon, which is simply pierced, as long as it hits, it is a semi-open deep wound. But they don't have the concept of aseptic operation, they generally bandage some gold sore medicine, and use a soldering iron to cauterize and stop bleeding if they are ruthless. Such a wound environment is simply an ideal home for tetanus, so Clostridium tetani inadvertently became a killing weapon for the ancients on the battlefield, and the soldiers who were recruited would experience a painful death process.

Crossbowmen often have a habit of inserting all the arrows from their quivers into the dirt at their feet. This method is to make it easier to take the arrow and increase the rate of fire, and the other is to make the arrow stained with dirt in the dirt, which increases the fatality rate of infection after hitting a non-vital part. This move is no less powerful than the use of certain chronic poisons, ranging from infection to ineffective combat at worst, and tetanus at worst.

Coincidentally, the Mongols, who are good at riding and archery, also have their own secret recipes. It's just that unlike Western longbowmen who shoot at fixed points, it is inconvenient for mounted archers to use local materials and contaminate arrows with dirt. They are bold in the method of preserving arrows, using horse manure to "nourish" the arrowheads, and after further processing, they will be concentrated in bags made of cow stomachs for preservation, this step-by-step operation makes the arrows full of various bacteria, of course, tetanus clostridium.

According to Hao Yuntong, more than sixty percent of those who have been injured by Jin Chuang's fistula can die, Zhao Yu was very worried when he heard it, and the mortality rate of more than two-thirds was also unbearable for himself, after all, those soldiers who were not fatally wounded were veterans with combat experience after recovery, and became the backbone of the army. In modern times, a vaccine shot for just a few dollars can save a life, but now he is helpless, and what makes him sad is that Li Sanniang was also shot in the arm, and there is also a risk of infection.

However, Zhao knows that tetanus bacilli itself does not cause disease, and only causes tetanus when the bacteria multiply in large numbers and the toxins produced by them enter the bloodstream. The condition for bacterial proliferation is hypoxia, which generally occurs only when the external opening of the wound is small, there is necrotic tissue or blood clot congestion in the wound, and local ischemia. Therefore, proper treatment of the wound after injury and destruction of the hypoxic environment in the injured area are the keys to the prevention of tetanus.

Therefore, Zhao Yu asked Hao Yuntong to instruct the doctors to first strictly clean the wounds of the injured, re-debride and disinfect the infected wounds, eliminate abscesses, and cut off the channels of onset; On the other hand, he summoned a group of physicians to discuss the treatment plan, and searched his own intestines and stomachs to recall what he knew in his previous life, trying to find a method that could be used at this time......