Chapter 525: Vaccination

"Ceiling?"

On the hot air balloon, Dui Zheng, who was standing in the middle, frowned. Reading

He has the highest position and can recognize some words.

"Maybe it's just a coincidence." A soldier said.

He didn't believe that these slaves could read and could deliberately form two words.

"Whether it's a coincidence or not, this news must be reported." The soldier on the right stared at the camp and found that there were Beidi archers bending their bows and arrows, and he pointed.

Dui Zheng saw this and immediately ordered them to sprinkle carbon powder on the brazier.

The flames suddenly rose, and the hot air balloon continued to rise. They stared at the flag, at different heights and directions.

When the tail of the flag pointed to the east, keep the height.

After a while, they saw the warship anchored at sea.

The warship of the Black Shark Pirates is more than 50 meters long and about 18 meters wide.

There is a very spacious place on the front deck, enough for them to take off from the warship.

It's just easy to go up, but not easy to come down.

But for this time to spread leaflets, King Yan made up his mind.

Even if the hot air balloon is damaged, it doesn't matter, after all, it doesn't cost much money to make a hot air balloon.

Eight hot air balloons were launched along the way, but three of them fell into the sea.

However, there were no casualties among the soldiers on the hot air balloons.

The soldiers on the warship rescued them in time.

"Lower the altitude and prepare to drop the rope." The warship was getting closer and lower, and the captain shouted.

The two soldiers immediately perked up and stared at the warship.

Just as the hot air balloon flew over the warship, the soldier threw the long rope down.

There were already soldiers waiting on the deck.

They rushed to the rope and pulled hard to stop the hot air balloon from flying.

Seeing the rope being pulled, the soldiers on the hot air balloon breathed a sigh of relief.

They extinguished the flames in the brazier and slowly landed under the pull of the soldiers.

On the opposite side of the warship, the Beidi soldiers who were chasing the hot air balloon could only look at the sea unwillingly, helpless.

When the hot air balloon landed, the sails of the warship were raised, and the warship slowly went south.

Three days later.

The news discovered by the hot air balloon soldiers was sent to the palace.

"Smallpox?" When Xu Ke told Zhao Xu about the hot air balloon soldiers' discovery.

Zhao Xu frowned immediately.

"Your Highness, could this be a coincidence?" Xu Ke felt that this matter was a bit absurd.

In his cognition, smallpox is extremely terrible.

Often, if one person in the village gets it, the people in the village will basically die.

So, if the news conveyed by the slaves in the Beidi camp is true.

Then there are smallpox patients in Temutala's carriage.

But in this case, Beidi is not afraid of playing with fire and getting burned, and smallpox will spread among the Beidi army?

"It is better to believe it than not to believe it." Zhao Xu said in a deep voice.

In contemporary history, such things have happened before.

During the Han Dynasty, this very cruel method was used in the war between the Han Dynasty and the Xiongnu.

At that time, the Xiongnu people threw livestock infected with the disease into the water source on the Han army's march, which caused a large number of Han soldiers to fall ill and die.

Moreover, there was a missionary from the Russian country in the Beidi army.

In the Age of Discovery, the Westerners were best at genocide.

In order to eliminate the natives, they took all possible means.

Including giving the clothes and bedding of smallpox patients to the natives.

As a result, the entire tribe of the natives died.

After all, Beidi and Dasong did not know anything about smallpox.

So, he did not believe that Beidi would rashly take this approach.

Unless someone guided them and pointed out a safe way for them.

"Your Highness, if this is true, it will be troublesome." He saw the solemn expression of King Yan and suddenly became nervous.

If Beidi really spread smallpox to Yanzhou, there would be big problems next.

Even the entire Dasong would suffer.

Because as long as the goal is not achieved, Beidi will continue to throw the source of poison over.

Even if they isolated the infected soldiers, there would be more soldiers who would be infected.

Thinking of this, he felt a complete chill for the first time in his life, "Beidi, this is really going to destroy my Dasong."

Zhao Xu has never changed from beginning to end.

It's not that he is indifferent, but that he is extremely angry.

In his eyes, the Beidi people are no longer human, but despicable and shameless beasts.

Like the Western countries in the Age of Exploration, they are doing inhumane things for their own selfishness, that is, exterminating a race.

Of course, Zhao Xu has never had any hope for Beidi and the Western countries of this era.

The jungle of the world is so cruel.

Either you die or I die.

Looking up at Xu Ke, who was sweating profusely, he said, "You don't have to be so nervous. Beidi's method, I have a way to solve it."

Beidi made a thousand calculations, but missed one point.

He is Zhao Xu, not only the ninth prince of Dasong, but also a soul from the contemporary era.

If they had implemented this plan in another place, it might have succeeded.

But they chose Yanzhou.

"Your Highness, do you have a solution?"

Xu Ke was surprised, and his eyes were full of respect when he looked at Zhao Xu.

Even the imperial doctors were helpless against smallpox.

I didn't expect that their King of Yan not only knew various skills, but also knew medical skills.

"Don't be too happy too soon. Although there is a way, it depends on the cooperation of the government office and the royal army. Otherwise, Yanguan will be in danger." Zhao Xu said seriously.

Smallpox has been notorious since ancient times and is known as the first plague. There is no way to cure it.

Even modern medicine can only reduce the mortality rate.

The most fundamental way to resist it is still vaccination.

In modern times, smallpox was not officially eradicated until the whole world was basically vaccinated with cowpox.

So, once the Beidi really spread smallpox to Yanguan.

With the current medical conditions, he has no way to treat it.

Now, the only way he can crack the Beidi's poisonous plan is to vaccinate the royal army with cowpox.

Otherwise, once the soldiers in Yanguan are infected, he can only ruthlessly close the pass, isolate the infected soldiers, and watch his soldiers slowly die.

And this is what he absolutely does not want to see.

"Go, call Liu Fu, and then ask someone to call Chang Wei back." Zhao Xu said.

During this period, Chang Wei has been patrolling between the bastion and Yanguan to guard against the attack of the Beidi.

He would not have thought that the war that Beidi might be brewing was something he had never seen before and could not deal with.

After saying yes, Xu Ke ran out at the fastest speed.

He got on his horse and went straight to the government office.

After Xu Ke left, he began to think about the next action to take.

The first thing was to find a cow with cowpox.

In memory, modern humans began to control smallpox from a milker.

Because the milkers at that time needed to milk manually, they would be infected with cowpox when they came into contact with cows with cowpox.

And just at this time, a doctor discovered that milkers who had been infected with cowpox were also immune to smallpox.

So the doctor did an experiment, found a teenager and let him be infected with cowpox, and then let him come into contact with smallpox, and the teenager was indeed immune to smallpox.

Since humans only have a mild reaction to cowpox, the ancient vaccine of vaccination was born.