The previous question was also solved, indicating that the doctor in the town could not distinguish Xu Yue's symptoms at that time.

Instead, he told Aunt Wu in Xu Ying's mouth a local method and asked her to verify it.

After verification, the conjecture of the town doctor was confirmed.

At the same time, she also gained the trust of Xu Ying and Aunt Wu in her mouth.

For the town's doctor, he is concerned with how to cure the patient in the shortest possible time.

Therefore, after understanding the patient's condition, I found that my own medical treatment was not possible at all.

And the people who accompanied him were afraid of spending money on the big hospital, so the doctor in the town came up with a local method.

...

After Ling Fei put on his gloves, he put the vomit on the ground into the evidence bag, and after returning to it, he handed it over to the technical department for testing.

After that, Ling Fei conducted a scene investigation in accordance with the process of the poisoning case.

The pots in the kitchen are the kind of wood-fired pots that used to be.

There is a large pot on the top, and a place for firewood below.

Behind the stove was surrounded by two half-man-high earthen walls, filled with dry wood and leaves.

There was still a small half of corn paste left in the pot, which was already cold.

After Ling Fei took a sample, he found a small bag of rice, a bag of noodles, and half a bag of cornmeal next to the cupboard.

Aside from some seasonings, there was nothing unusual in the cupboard.

After Ling Fei took samples in turn

, Ling Fei went to Aunt Wu's house next door.

"Knock knock!"

After hearing the knock on the door, Aunt Wu opened the door and found a policeman standing outside the door, and naturally knew the reason why the other party came.

"Comrade policeman, come in and sit!" Aunt Wu greeted warmly.

When Ling Fei entered the house, he slightly looked at the middle-aged woman in front of him.

He has dark skin, wears sleeves, and has a lot of crusted chilblains on his fingers.

At first glance, it was left over from the previous winter work, and it is only now that it is better.

"Ms. Wu, I came this time to ask about the two sisters next door.

"Do they have enemies?" Aunt

Wu recounted after making Ling Fei a cup of tea

, "The parents of these two sisters had a discordant relationship when they were very young, and quarreled every day, and then their mother said goodbye, leaving only the man to raise the two children.

Their father often worked in other places, leaving only the two sisters to take care of each other.

"Half a year ago, their father died in a car accident, and the driver who caused the accident was not found.

"Life was already very difficult, and their father died, so they naturally lost their financial resources. "

Xu Yue only goes out to pick up waste every day, and there are more than ten or twenty yuan a day.

"In addition, the family has four chickens, lays eggs every day, and has an acre of land, planting some vegetables, and it has been returned.

"Those of us who are neighbors will naturally help and say things about the enemy. "

The two sisters have very good personalities and are very kind, and I haven't seen anyone they provoke.

After understanding the situation, Ling Fei also thanked him and left.

According to the other party, the two sisters have no enemies.

If human causes are excluded, the probability of food poisoning is much higher.

But what made Ling Fei a little puzzled was how corn paste could cause food poisoning.

Is it expired, no, no, I have just seen the expiration date, and it has not expired. Ling Fei thought as he returned to Xu Ying's house.

Just when Ling Fei was about to return to the institute and go to the technical department for testing.

The phone rang, and it was Deputy Director Gao.

"Xiaofei, Xu Yue has woken up, I asked her.

She said she had recently been picking up bottles when she found a brown bottle filled with white crystalline particles in the garbage.

She dipped a little of her hand in it, tasted it, and found out that it was table salt, thinking that such a big jar would be enough for the family for at least half a year. So

he took it home and put it in a salt shaker, and then put the bottle in a burlap bag to sell it later. "

You go and see what that bottle is in?"

"Okay, Master!"

After hanging up the phone, Ling Fei found the burlap bag in the corner of the courtyard.

When I opened it, I saw that there were many empty plastic bottles in the burlap bag, about half a bag.

Soon, Ling Fei found the brown plastic bottle in Xu Yue's mouth in the sackcloth pocket.

Nitrite is written on the bottle.

Nitrite can oxidize the normal oxygen-carrying hypohemoglobin in the blood to methemoglobin, thus losing the oxygen-carrying capacity and causing tissue hypoxia.

Nitrite is very similar in appearance and taste to table salt, and is widely used in industry, construction, and meat products as a color dose.

However, if 0.3~0.5 grams of nitrite is ingested, it will immediately cause a toxic reaction, and if you eat more than three grams, it will lead to death.

The truth is now revealed.

Since she had never been to school, Xu Yue took it home and ate it after picking up the "salt".

As a result, I didn't expect to hurt myself.

"Xu Ying!" Xu Ying

, who was preparing chicken food for the three chickens, hurriedly ran over after hearing Ling Fei call him.

"The cause of your sister's poisoning has been found, and we have to rush to the hospital now to see if there is any way to solve the problem of medical expenses.

Xu Ying nodded and sat in the co-pilot's seat.

When the two arrived at the hospital, Deputy Director Gao was standing at the door of the ward, waving to Ling Fei.

After Ling Fei asked Xu Ying to go in to accompany her sister, he walked next to Deputy Director Gao.

Deputy Director Gao said in a low voice: "The follow-up treatment cost of the little girl will probably cost more than two thousand yuan. "

I've asked the medical department if I want to apply for the hospital's relief funding.

"Doctor's orders, diagnoses, admission records, expense lists, illness course lists, application forms for relief funds, proof of non-financial payment, and copies of low guarantees are required.

"It's easy to say before, but the sisters don't have this low guarantee.

"I mean, I'm going to go to the community right now and try to get it done tomorrow.

Ling Fei nodded, went in and sat next to Xu Yue.

Deputy Director Gao also took Xu Ying to the community.

"Thank you, comrade policeman. Xu Yue's body was a little weak, and her voice was very small.

Ling Fei could only hear what the other party was saying clearly after he got closer.

"This is what we should do, hungry, right?" Ling Fei suddenly thought that the other party hadn't eaten lunch yet.

So he went downstairs to buy some porridge and fed it to Xu Yue.

After eating, Xu Yue felt that the feeling of fatigue was not as strong as before.

It wasn't until half past six in the evening that Deputy Director Gao came back with Xu Ying.

"Master, how's it going?" Ling Fei asked impatiently when he saw Deputy Director Gao walking in.

"The procedure is still more cumbersome, but it can be done by 5 pm tomorrow.

Xu Ying also said happily to her sister: "Sister, with this low guarantee, we can receive 700 yuan every month."

After Xu Yue heard the conversation of several people, she also hurriedly thanked her.

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