Others were puzzled, but Qiu Feng reacted instantly, "Wait a minute, I'll get it."
Qiu Feng's father, Qiu Zhen, is the chief physician of the Imperial Medical Office, and this is half of her home. She ran into the room and soon took out a bundle of thoughts.
The thread used in the meditation class is made of many materials, including various metals, as well as special spider silk and insect silk. More advanced ones need to be redeemed with credits.
The bundle Qiu Feng took out was a special kind of spider silk. It was not sticky, but was extremely tough and soft. Li Ang later communicated with her about using thought threads to detect the human body, and concluded that spider threads had the best effect. .
"Give."
Qiu Feng handed over the thought thread, and Li Ang took it. After cleaning it with physiological saline, he injected his thought power into it.
sand--
The spider thread trembled, and with everyone watching, it slowly penetrated Yi San's swollen abdomen.
Li Ang closed his eyes and released his telekinesis power very carefully.
After he reached the high level of the body hiding state, the effect of telekinesis scanning was much better than before. Although it was still not possible to see clearly a little further away from the spider silk, it was more than enough to examine Yi San's abdomen.
There are too many parasites...
Under the distended veins in the abdomen, countless tiny insect bodies were squirming and tumbling.
Every time the spider silk advances a few inches, you can see densely packed insects and insect eggs.
sand--
Li Ang slowly retracted the spider silk and turned to look at Qiu Zhen, "Doctor Qiu, the Imperial Medical Office should have a microscope, right?"
"Yes. I just bought one last month. Follow me."
Qiu Zhen nodded and led the way to a room.
Li Ang stepped into the room, and under the gaze of everyone, skillfully used two glass sheets as slides, put something at one end of the spider silk into the slides, adjusted the parameters of the microscope eyepiece and objective lens, and observed the slides .
Yu Guo's current microscopes are already quite excellent and can clearly see very small objects that are almost invisible to the naked eye.
But this time, in the lens, two bugs appeared.
One is long and the other is short,
The short one is milky white, the body of the insect extends to both sides, and curls slightly toward the ventral surface, tightly hugging another insect.
The elder one is thin at the front and thick at the back, shaped like a nematode, dark brown, and nearly 25 mm in length.
The two bugs hugged each other, entangled and difficult to separate.
The mouthparts can be vaguely seen at the top.
There are two forked tails below.
Under the microscope, the two worms were still squirming weakly. In the thin body, you can see the dark brown lines of body fluid flowing - that is the digested human hemoglobin.
"Schistosomiasis..."
Li Ang's heart was like a stone, sinking toward the abyss.
The violent change in emotion even broke through his usual self-control, causing an ugly expression to appear on his face.
A poem echoed in his mind.
There are so many green waters and green mountains in vain, what a helpless little insect Hua Tuo is! Thousands of villages are left with dead people, and thousands of households are deserted and ghosts are singing.
Thousands of ghosts sing...
He seemed to be able to see countless small insects squirming and multiplying in the water, spreading death to thousands of households.
Villages disappeared from the map one after another,
Countless sick people's abdomens swelled like balloons, and they died in pain as they became thinner and thinner.
"...Sunrise?"
Qiu Zhen's voice pulled Li Ang out of his trance, "Are schistosomiasis water bugs?"
"Yes. I took this out of Yi San's belly using Niansi.
I saw it sucking blood from the human body, so I called it this name. "
Li Ang nodded and made room for the microscope so that others could observe the insect body.
Schistosomiasis are dimorphic and intertwined with each other.
The male worm is thick and short, while the female worm is slender, averaging 20 mm. The small nodules and spine-like protrusions on its body surface can be clearly seen under a microscope.
The doctors took turns looking at the wriggling insect bodies under the microscope, and their faces turned pale.
The thought of a patient's bloated belly filled with similar blood-sucking bugs is chilling.
"In the past few years, some patients who liked to eat raw fish soup and snake soup also had swollen abdomens, as if they were filled with water. After death, it was found that their intestines and stomach were full of parasites. The heart, liver, spleen, and lungs were eroded and riddled with holes. Like tofu..." Gu Dai
"What about this disease? Many people say that they no longer dare to drink raw water and eat raw food. How come they are still getting sick collectively?"
"Could it be because they have touched the water? They are all crew members, so it is inevitable that they will go into the water..."
"Should we use croton first? Since the worms are in the abdomen, maybe we can use croton to expel the worms from the body first..."
The doctors discussed in low voices, while Li Ang silently walked out of the room and went to the lobby of the next room.
In the lobby, the lights are dim, and there are temporary beds placed on the ground, with a patient lying on each bed.
Coughing, labored breathing, moaning,
The smell of herbs, the smell of blood in phlegm, the smell of vomit,
Li Ang looked at the hundreds of beds neatly arranged, feeling extremely depressed. Holding the door frame with his palm, he squeezed out fingerprints on the wooden door.
Tap tap tap.
Footsteps sounded from behind. Qiu Feng came closer, glanced at the depressed and gloomy Li Ang worriedly, and said softly: "Risheng... are you okay?"
"I'm fine, just a little..."
Li Ang let go of the door frame, and for a moment he didn't know what to say. He could only hold back the word "despair".
There is probably no one in the world who knows more about schistosomiasis than him.
No one knows better than him how terrifying schistosomiasis is.
This parasite belongs to the phylum Platyhelminthes, the class Trematodes, the subclass Polygonidae, the order Polygonidae, the family Schizosomatidae, and the genus Schistosoma.
During the life cycle, there are seven developmental stages: adults, eggs, miracidia, mother larvae, daughter larvae, cercariae and juvenile larvae.
Starting from the egg stage, under suitable air and water temperatures,
The eggs will hatch into miracidia, which will quickly find the intermediate host snail in the water, invade its body, reproduce asexually, and gradually develop into mother larvae, daughter larvae, and cercariae within a few months.
Cercariae swim actively in the water. Once they find a new host, they will use the opening in the front part of the worm's body to secrete tissue enzymes and burrow into the host's skin.
Later, the cercariae will take off their tails and enter the bloodstream. They will be transported to the whole body along with the blood or lymph. After the male and female mate, they will migrate to the portal vein-mesenteric vein to reside and mature.
After 24 days of invading the host, they begin to mate and lay eggs.
A female worm lays about 1,000 eggs every day, half of which enter the bladder and are excreted in the urine. The remaining eggs are deposited in the liver, rectum, colon, appendix, lungs, brain and other organs.
Mature eggs contain mature miracidia, the secretions of which are antigenic, causing egg granuloma and subsequent fibrosis, leading to cirrhosis and portal hypertension.
Clinical manifestations include ascites, splenomegaly, esophageal varices, etc.
Five weeks after infection, hatchable eggs will appear in the host's feces. The eggs will float away with the water and begin the next round of reproduction, parasitism, and transmission.
crackling——
In the night sky, New Year's Eve fireworks bloom brightly,
Li Ang stood at the door of the lobby, his back turned to the bright sky, staring at the hospital beds.
...can it be controlled?
Schistosomiasis cercariae are spread along with water flow, and any behavior such as fishing, swimming, laundry, or foot washing in the water may cause infection.
Even if you just step on the infected water, you may be parasitized.
The farmland and river areas of Yu State are too large, and shipping is extremely developed.
Oncomelania, the intermediate host of schistosomiasis, can easily attach itself to shipping ships and spread to distant places as the ships spread, expanding the scope of their infestation.
Just like dropping a drop of ink on paper, it will spread around along with the grain of the paper.
So, is it cured well?
The best drug for treating schistosomiasis is the pyrazinoisoquinoline derivative, praziquantel.
At this stage, its production process is a hundred or a thousand times more complex and difficult than that of allicin and penicillin.
Almost impossible to produce.
Considering that all the patients in the lobby were in the late stages of schistosomiasis parasitism... the actual spread was worse than expected.
How many people are infected by schistosomiasis?
Two hundred thousand?
Three hundred thousand?
Or...millions...
In the night sky, the fireworks gradually stopped.
Li Ang's face was hidden in the darkness.
7017k
