Di Renjie took Li Hao to a medical center on the side of the street, only to see eight people from Dali Temple guarding outside the medical hall, not letting anyone in, nor letting anyone out, all wearing thick masks, masks, this thing, Li Hao brought to the world, quite popular, and several other people from Dali Temple were sprinkling lime water in the medical hall.

Di Renjie pointed to the signboard of the medical hall and said: "It is this Rende Medical Center, three people came here to seek medical treatment, and they were found to be suffering from the plague, and now those three people are locked up in the firewood room in the inner courtyard of the medical hall. ”

"Doctor, call the doctor out." Li Hao stood at the door and shouted.

Di Renjie said: "Lord Wang, everyone in the medical hall has been locked up in the inner courtyard room by us. ”

Li Hao nodded and said, "Without a doctor, how can you know what kind of plague you are suffering from?" ”

Di Renjie said: "Lord Wang, don't ask, I have already asked, the doctor said that it was smallpox, and judging from the symptoms of those three people, it is indeed smallpox, and pustules have begun to appear on their bodies!" ”

"Smallpox?" Li Hao was stunned when he heard this, and immediately frowned and said, "I remember that the emperor has ordered the method of planting cowpox to be popularized throughout the country, and has repeatedly ordered that every household and every person must cooperate with the local government to vaccinate cowpox, why is there still smallpox?" ”

Di Renjie was also stunned, and then asked: "Won't you get smallpox if you plant cowpox?" ”

When Li Hao heard this, he realized that the concept of cowpox was still a little vague in the Tang people, and they didn't know that cowpox could be immune to smallpox virus, and thought that it was just to reduce the probability of smallpox.

Li Hao explained: "Cowpox belongs to the smallpox vaccine, and people who have been vaccinated with cowpox will be immune to smallpox, in other words, if they have been vaccinated with cowpox, they will not get smallpox again." ”

Di Renjie immediately breathed a sigh of relief when he heard this, and said, "That's good, Lord Wang, in fact, those three people are all foreign Huyi, and they shouldn't have been vaccinated with cowpox." ”

"I see." Li Hao suddenly heard the words and said, "First go and release the staff of the medical center, and by the way, take me to see the three people who have smallpox." ”

"Yes." Di Renjie hurriedly asked his colleagues in Dali Temple to release people, and at the same time, he took Li Hao to the firewood room in the backyard and unlocked the door.

As soon as the door opened, the three of them rushed to the door and wanted to rush out, Li Hao kicked them back directly, glaring and shouting: "Go back, you have the plague, where do you want to go?" ”

Seeing this, the three of them knelt down and kowtowed, begging Li Hao to help, Li Hao looked carefully at the pustules on their faces, which were not small, and they could be determined to be severe smallpox, the lethality rate of this smallpox reached 30%, and there was no cure, so they could only see each man-made.

Severe smallpox is generally accompanied by complications such as sepsis, osteomyelitis, encephalitis, meningitis, pneumonia, bronchitis, otitis media, laryngitis, blindness, miscarriage, etc., these complications are the causes of death and disability, smallpox itself does not cause death, there is an emperor in history who has suffered from smallpox, that is, the Kangxi Emperor of the Braided Dynasty, he was lucky, he did not die of smallpox, but his face left pockmarks, so some people jokingly called him the pockmarked emperor.

The mortality rate of smallpox is not as high as that of plague, but its infection rate is worse than that of plague, smallpox virus mainly invades the human body through the mucous membranes of the respiratory tract, and is transmitted through droplet inhalation or direct contact.

The three smallpox patients were still kowtowing and begging, but Li Hao thought of one thing, one thing that made his heart pound: the Tang people have been vaccinated with cowpox, and they are not afraid of smallpox, but the Hu people are not, they are afraid of smallpox, in this case, why not lead the smallpox virus to the enemy camp outside the city, let them taste the power of smallpox!

After this thought emerged from Li Hao's mind, it was no longer difficult to press, that's right, this is the ancient biological and chemical weapon, the same as the last time he used the golden soup to cause cholera, although it is inhumane, but in this situation, it seems a bit funny to talk about humanity with this group of barbarians.

The other rooms in this courtyard were closed to the people of the medical hall, and now they were all released by the people of Dali Temple, standing in the corner of the courtyard from a distance, and the people of Dali Temple were responsible for watching them.

Li Hao turned his head and beckoned to a person from Dali Temple, who hurriedly walked over and saluted: "What does the prince command?" ”

Li Hao said: "You go and inform Sun Bowang that now that smallpox has appeared in the city, all people who have not been vaccinated with cowpox may be infected, so let him quickly send someone to inquire and inspect the people throughout the process, find out all the people who have not been vaccinated with cowpox, and quickly inoculate them with cowpox, it is a matter of life and death, and warn the people in the city not to lie!" ”

"Yes!" The officials of the Dali Temple immediately took the order and left.

Li Hao turned to Di Renjie again and said, "Huaiying, you stay here, I'll go get something and come back soon." ”

"Yes." Di Renjie nodded vigorously.

Li Hao left in a hurry, went back to the governor's mansion to get his first-aid kit, and then took out the syringe and three blood collection glass tubes inside.

Di Renjie had never seen these things, he felt very curious, and kept staring, and then, a scene that made him stunned appeared, Li Hao actually used a needle to pierce the pustules of these smallpox patients to extract pus and blood, and then squeezed these pus into the blood collection glass tube and sealed it.

Most of the three glass tubes had half a tube of pus and blood, Li Hao walked out of the firewood room and said, "Close the door, stay here, don't let them come out, I actually want to save them, but smallpox is really incurable, it can only depend on luck, maybe...... They saved Youzhou, maybe it's not a deal. ”

His last sentence made Di Renjie puzzled, how could these three people with smallpox save Youzhou? Can't figure it out.

After Li Hao left the infirmary, he came to the granary, recalled all his special forces, a total of fifty people, Li Hao asked them to prepare themselves, each of them rode horses, brought fast crossbows, and went out of the city from the south gate.

After going around the city in a big circle and coming to a small pond, Li Hao ordered a small half bucket of water, smashed all three glass pipes, and threw them into the bucket.

The special forces looked inexplicable, and wanted to ask Li Hao what he was doing, but they didn't dare, because they had learned it when they were trained, and their duty was to obey, obey, and obey again.

Although they didn't ask, Li Hao took the initiative to answer, Li Hao said: "What I just put in is the pus and blood of smallpox patients, you all know smallpox, the infection is very powerful, it will cause death or disability, but you don't have to be afraid, each of you has been vaccinated with cowpox, immune to smallpox virus, next, put the tip of each of your arrows in this bucket and dip it, later, we will attack the enemy camp." ”

The special forces were obviously surprised, but they held back, and soon, they reacted, they finally knew Li Hao's purpose, to create a plague in the enemy camp, after all, those barbarians were not inoculated with cowpox, they were suddenly so excited, it can be called excited, and the thought of the enemy camp being ravaged by smallpox, what a great thing it was.

Next, all the special forces take turns to step forward and dip all their crossbow arrows into buckets, so that all their arrows become poisoned arrows.

Next, Li Hao put the lid on the bucket, held it in his hand, and began to set off, heading north, because there was still a lot of water left in the bucket, and if such a little bit of water was thrown into the enemy camp, the effect should still be good.

An hour later, Li Hao and they finally approached the enemy camp, and were discovered by the enemy scouts, hundreds of cavalry rushed out of the enemy camp, and came out to chase them, Li Hao ordered everyone to turn their horses' heads, and when these cavalry approached, he immediately threw the bucket to the group of cavalry, and shouted: "Withdraw!" ”

A group of special forces immediately rode their horses and fled, and the barbarian cavalry chased after them, and the special forces turned around to shoot crossbow arrows, anyway, Li Hao explained, don't shoot your head, you will die if you shoot your head, what he wants is not for this group of cavalry to die, but for them to be injured and go back to be the source of infection.

Perhaps their crossbows were too powerful, and the cavalry pursued them for several miles, but they were shot nearly 100 people, killed or wounded, so they gave up the pursuit and returned to the camp one after another.

Li Hao was stunned, there were still a lot of poisonous arrows left in them, so they wouldn't chase them so soon, so Li Hao decided to change places and fire again, isn't there an army of the four clans, just now it was the military camp of Goguryeo, now change to Xue Yantuo's military camp to try, and then go back to the military camp of Su.

Li Hao and the others went to attack Xue Yantuo and Hui Hui's camp again, and finally used up the poisoned arrows, and then they returned to the city.

Before entering the city, go to a nearby pond to take a bath, after all, they are now smallpox carriers.

After taking a bath, Li Hao and the others entered the city from the south gate, and as soon as they returned to the governor's mansion, Sun Bowang came to report, saying that he had sent people to register everywhere, and had begun to send people to prepare vaccinia vaccines.

Li Hao smiled and nodded, and told him to go and check the guards guarding the city first, they are the umbrella of the people in the city, and they must not go wrong.

He predicted that within five days, smallpox should appear in the enemy camp, according to the speed of smallpox infection, it is estimated that within ten days, smallpox will ravage the enemy camp, and the military camp is too densely populated, so that smallpox infection is like nuclear fusion, and the speed will be doubled.

Sure enough, as Li Hao expected, and it was faster than Li Hao expected, three days later, Gai Suwen's injuries were almost healed, and he was ready to start attacking the city in two days, but he received a report from the military doctor, a large number of herpes patients have recently appeared in the army, these military doctors are provided by Fan Yang Lu's family, medical skills, that's it, anyway, they didn't find smallpox, they just thought it was herpes.

By the next day, all the doctors were infected, all had red rashes, and many of the soldiers had begun to develop pustules, accompanied by chills, high fever, fatigue, headaches, and aches in the limbs and lower back.

Lu Gongwang was shocked when he heard the news, he knew too well what this was, this Nima was smallpox, so frightened that he hurriedly left Li Tai and ran home with someone, at this time, how could he still manage any big plan, it was important to save his life first, it was smallpox, his old bones could not withstand the toss of smallpox.

Li Tai suddenly couldn't find Lu Gongwang, he looked confused, he was like a wandering soul in the barbarian barracks, without Lu Gongwang's support, would these barbarian armies bird him, of course not, so he also ran away, he had nowhere to go, and came to Lu Mansion with his own guards, but the gate of Lu Mansion was closed and he was not allowed to enter the door, which made Li Tai mad, and he made a lot of noise outside the mansion gate, and sent people to bang on the door.

Smallpox had already begun to wreak havoc in the barbarian barracks, and almost no one was spared, and in three days, more than 12,000 people had died, and only more than 40,000 of their 70,000 troops remained.

Gai Suwen was also infected, and the other three clan coaches, without exception, were all infected with smallpox, and the contagious ability of smallpox was absolutely terrifying.

The four coaches with red rashes and pustules on their faces met again, and the atmosphere in the tent was very depressing, and Gesa and Lamlun wanted to withdraw their troops, and they wanted to go home.

Gai Suwen snorted coldly when he heard this: "Go home? Bring smallpox back to your grasslands? ”

Gesa and Ramulun were stunned when they heard this, and hung their heads, if that was the case, they were sinners of the country, and now they couldn't even go home.

After a long time, Gai Suwen suddenly raised his eyes and swept over the three of them, and suddenly slapped the table and said: "While we are not dead, let's fight to the death with the Tang army, we are soldiers, even if we die, we will die on the battlefield!" ”