The fleet loaded with relief supplies finally arrived in Suzhou City along the canal system.
When Qiu Feng saw Li Ang again, he was startled by the bloodshot eyes, "Risheng...are you okay?"
"It's okay, I just haven't slept much lately."
Li Ang forced a smile. These days, he lived in the ward and only slept three or four hours a day. While using the thread to treat the most severe schistosomiasis patients, he was also looking for ways to suppress the water poisoning epidemic.
"Follow me."
He turned around and motioned for the visitors from Chang'an to follow. Qiu Feng and others looked at each other and silently followed Li Ang through the courtyard of the hospital to a room.
The room was filled with information and documents. Li Ang used his mind power to clear the seats for everyone. He took a break with tea and said slowly: "I have found out the transmission route of schistosomiasis."
"Huh?!"
Qiu Jing, the chief physician of the Imperial Medical Office, was surprised and delighted, "What is it?!"
Li Ang raised his palm and released his telekinesis, causing the papers on the table to spread to both sides, revealing the bottles and jars hidden underneath.
"The samples contained in these five bottles are all schistosomiasis.
In other words, they are the five survival stages of schistosomiasis.
Adult worms, eggs, miracidia, cercariae, and juvenile worms."
Li Ang pointed at the glass bottle and said, "Similar to the transformation from a cocoon into a butterfly, schistosomiasis also has different appearances and behavioral characteristics at different stages of life.
Schistosoma in the cercarial stage will use the puncture thread on the body to burrow into the host's skin, take off its tail, and turn into a child worm.
Schistosoma in the child stage will enter the bloodstream, move to the intestines and blood vessels of the host body, and then develop into adult worms.
In the adult stage, schistosomiasis will reproduce and lay eggs, with nearly a thousand eggs being laid every day.
Some of the eggs deposited in the host's body will cause symptoms such as ascites, jaundice, and spleen hypertrophy. They will torture the host and make it weak."
He stood up, walked to the side room, and brought two iron brackets over.
On the stand were placed the headless corpses of two rabbits, both of which had been disemboweled and their fur fixed with hooks, exposing their internal organs.
Qiu Feng frowned slightly and said, "This is..."
"Two rabbits, one is infected with schistosomiasis and the other is not. Look at the difference."
Li Ang placed the bracket on the table. Qiu Feng and others observed it for a while and said uncertainly: "The intestines of this one are whiter? The liver is also full of white spots."
"That's right."
Li Ang nodded and used his mind power to pull up the rabbit's mesentery so that Qiu Feng and others could observe better. "What's entangled in the blood vessels is schistosomiasis."
"So many?!"
Qiu Feng only felt that his scalp was numb, and the rabbit's blood vessels were filled with dense white lines, making him feel uncomfortable just by looking at it.
"Yes. As for the white spots on the liver, they are schistosomiasis eggs."
Li Ang said lightly: "This is just a small rabbit. Huge people and cattle are more seriously affected by schistosomiasis."
"..."
Everyone in Chang'an was speechless. On the way here by boat, they saw many patients with swollen abdomens, so that the folk began to have a proverb to describe schistosomiasis patients——
My belly is as swollen as a winter melon, my face is as yellow as a cucumber, and my hands and feet are as thin as a loofah.
Li Ang continued: "The other part of the eggs produced by the schistosomiasis in the host body will be excreted with the feces.
And this is also the main way of schistosomiasis transmission."
King of Light Li Shan was slightly startled, "Feces?"
"I didn't expect it. The final form of grains and grains is actually the beginning of the end of human life."
Li Ang pointed to the bottle containing the eggs and said: "After the feces flows into the water, the miracidia in the eggs hatch out, penetrate into the body of the intermediate host, reproduce in the body of the intermediate host, and turn into cercariae.
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The cercariae then swim in the water, looking for a host, parasitizing, and completing the cycle.
And this intermediate host is a snail.
To be precise, it’s a specific type of snail.”
Li Ang waved his hand, and the box in the corner opened, and several glass jars floated out of it.
It is filled with small objects as small as grains of rice. You have to pour them on the table and look carefully to see that they are snails with sharp ends.
Li Ang said: "I asked Shentu to offer sacrifices. I used the observation ability of a monk in the Zhuxiao Realm to observe the epidemic water for a long time before finally confirming it.
The cercariae in the plague water escape from the body of this tiny snail.
By following the clues, we figured out the entire life cycle of schistosomiasis."
"Just a small contribution."
Shen Tuyu waved his hand and said: "After repeated experiments, we found that,
Schistosoma miracidia are too fragile to parasitize larger snails or humans.
It can only parasitize this tiny snail, which is slightly larger than a grain of rice, and develop inside the body of the snail."
"And because snails like to live in grass in humid areas,
Rivers, rice fields, irrigation ditches.
Suzhou has a well-developed water system. Wherever there is water, there may be snails and it may become a plague."
Li Ang said: "People have to work in rice fields and fish in lakes, so they will inevitably come into contact with water and risk being parasitized at all times.
Spring plowing will begin in February and March.
What we can do now is to kill the snails and schistosomiasis as much as possible before spring plowing.
Here are some of my suggestions."
He picked up a stack of documents from the table and handed them to Li Shan.
Li Shan took the document and read it carefully, "Drug killing?"
"That's right."
Li Ang took a deep breath, "After the tea oil is squeezed out from the tea seeds, the remaining residue is pressed into cakes. Such tea cakes are also called tea cakes in Lingnan Road.
The tea extract is toxic, and fishermen in Zhenzhou will use it to poison fish. The poisoned fish meat is harmless to humans.
Moreover, the tea leaves extract can also kill oncomelania snails, with a killing efficiency of about 30%."
Li Shan didn't ask stupid questions like "How come it's only 30%?". Just looking at the densely packed tables, data, experimental logs, and plan demonstration process on the paper is enough to prove that this is the most suitable drug at this stage.
Li Shan said: "Okay. I will go to discuss with the prefect immediately and collect tea cakes from surrounding counties."
"Yeah."
Li Ang nodded and said: "In addition to killing with drugs, it is more important to change the environment. The snails move slowly and will die in pieces if they are buried in the soil.
Considering that they often live in irrigation ditches, you can recruit people to fill in old ditches and build new ditches. Bury the snails in the soil.
Secondly, you can also cut off the reeds and turf that are prone to breeding snails;
Use fire to burn the reeds around the Taihu Lake system;
Build dams and enclose new farmland to prevent the spread of snails;
In addition, the feces must be managed - patients infected with schistosomiasis will have a large number of eggs in their feces.
After feces enters the water, it will pollute the water body.
I suggest that on the one hand, let the ceramics workshop produce as many ceramic pipes and porcelain pipes as possible, splice them together, and bury them underground to form a sewer system like the one in Chang'an City.
On the other hand, when building public toilets and cesspools in cities and suburban towns, it is strictly prohibited to dump feces without permission, and the feces should be processed centrally to prevent insect eggs from entering the water source.
At the same time, many people draw water from the river and wash their clothes by the river, so they are easily infected and parasitic.
A large number of wells need to be built.
Finally, with spring plowing around the corner, people will inevitably go to the water for activities.
It is necessary to use a large amount of quicklime, rosin, pure wine, etc. for disinfection.
Distribute cloth leggings, oil-soaked socks, etc. to farmers..."
The more Li Ang spoke, the more frightened Qiu Zhen and others became.
On the one hand, they admired Li Ang's outstanding ability and orderliness.
On the one hand, I also estimate the magnitude of this project in my heart.
For a single item, at least 200,000 manpower must be mobilized to dig new and fill old ditches.
Plus burning reeds,
Build dams, wells, public toilets, sewers,
Distribute socks, etc.
The manpower, material resources, and financial resources that need to be mobilized are simply unimaginable.
"Okay."
Unexpectedly, Li Shan nodded and agreed after just thinking about it.
Seemingly noticing the astonished looks of others, Li Shan explained: "People from Luli Academy will also come to help."
That’s right.
Everyone suddenly realized,
With local business houses, wealthy households, civilian husbands, officers and soldiers from the imperial court, plus the monks supported by the Academy and Luli Academy, it is indeed possible to realize the plan.
One monk is worth fifty civilians,
But fifty civilians may not be able to replace monks.
Everyone was excited for a while,
Li Shan chatted with Suzhou Sima for a while, and immediately went to the Prefect's Mansion to discuss the plan with the Suzhou Prefect - he was originally the King of Light and had higher authority.
Physicians Qiu Zhen, Qiu Quan and other doctors received the list of past drugs given by local hospital staff and discussed which drugs should be used.
Only Qiu Feng noticed the fleeting hint of deep exhaustion deep in Li Ang's eyes.
and sadness.
This chapter has been completed!