The hot and humid smell was mixed with the musty smell of rotting wood.

Yuan Jianfeng was the first to enter the greenhouse, found the switch, turned on the small chandelier in the greenhouse, and explained: "The greenhouses in our village are all equipped with electric lights, and some are also equipped with temperature and humidity control equipment. ”

Gu Yanan and his entourage also entered the greenhouse one after another.

Under the lights, everyone saw rows of tomatoes planted in the greenhouse, and the red fruits grew in bunches under the green leaves.

Wang Xiaoxiao asked, "This is a tomato greenhouse, I didn't see any mushrooms." ”

"Look at the southwest corner." Yuan Jianfeng pointed to the southwest corner of the greenhouse.

It was covered with a tarpaulin, as if a separate place had been isolated.

Yuan Jianfeng walked over, pulled open the tarpaulin, and a row of wooden frames more than one person high appeared in front of everyone.

There are black fungus packets neatly arranged on the wooden shelf, and white white fungus grows on the fungus packets.

"Sure enough, there is white fungus!" Lu Li stepped forward and looked carefully, there were a lot of white fungus, and at a glance, there were dozens of fungus packs and hundreds of white fungus.

Gu Yanan touched the white fungus with gloves.

The yellowish white fungus is a little sticky to the touch, which is not a sign of normal healthy white fungus.

Normal tremella does not feel sticky.

"Take two back." Gu Yanan ordered Lu Li.

Lu Li opened the sampling box, cut off two white fungus and put them into the sampling bag.

Yuan Jianfeng watched from the side and asked, "Is there really a problem with this fresh white fungus?" There is also a large-scale white fungus cultivation in our village, a greenhouse with an acre of land, and I have never heard that his white fungus has eaten badly. ”

Gu Yanan: "The deterioration of fresh white fungus is not easy to detect, the environment and daily management are very important, where is the other greenhouse?" Take us there. ”

"Okay, it's not far from here, it's a two-minute walk."

On the way to another white fungus greenhouse, Yuan Jianfeng called the owner of the greenhouse, "Hey? Old Five, the people from disease control want to check your white fungus greenhouse, and suspect that there is a problem with the white fungus in your greenhouse, so come over quickly. ”

When everyone arrived, the owner of the greenhouse also rushed to the scene.

When the owner of the greenhouse opened the door of the greenhouse, the same hot and humid air came to his face.

Although this hot and humid air also smells of wood and grass chaff, it does not have the musty smell in Yuan Chunwang's greenhouse just now.

Entering the greenhouse, the scenery is quite spectacular, rows of shelves are neatly placed, the shelves are layers of fungus packs, and the white fungus with a large bowl mouth grows on the fungus packs.

The owner of the greenhouse introduced to Gu Yanan: "My greenhouse is fully intelligent temperature and humidity control, and it is also sprayed with sterilization drugs regularly, and the white fungus must be no problem, and my family and I have just eaten it once today, no problem." ”

Gu Yanan stretched out his hand to touch the white fungus, it was very refreshing, there was no sticky feeling, it seems that the greenhouse with intelligent temperature control is still effective in environmental control.

Gu Yanan said to the owner of the greenhouse: "I will bring a few white fungus back to the CDC laboratory for testing, and the test results will be fed back to you in a few days." ”

The owner of the greenhouse patted his chest and promised, "My white fungus must be fine, you can check it casually, I don't dare to guarantee Yuan Chunwang's family, his greenhouse is a soil greenhouse, and the conditions cannot be compared with me here." ”

Coming out of the greenhouse, Gu Yanan suddenly remembered that when he went to Yuan Chunwang's house in the morning, he met a middle-aged woman, who was his neighbor, and the middle-aged woman said that Yuan Chunwang had sent her and her neighbors white fungus, and now it is speculated that the white fungus is the biggest problem, and it is necessary to find the problem of white fungus sent out in time.

Gu Yanan led the disease control team to find the middle-aged woman's house in the morning and knocked on the door.

The middle-aged woman was wearing pajamas, her eyes were hazy, and when she saw Gu Yanan, she asked, "Why are you here again?" ”

I see that the middle-aged woman's complexion is very good, and she should not have eaten the problem white fungus.

Gu Yanan: "You said in the morning that Yuan Chunwang once sent you white fungus?" ”

"yes, what's the problem?"

"Where's the white fungus? Have you ever eaten it? ”

"I haven't eaten them yet, I'm hanging them in the yard, I'm going to dry them."

The middle-aged woman let the CDC group into the yard and pointed to the four semi-dried white fungus on the dustpan in a corner of the yard, "All of them are here, just four." ”

Gu Yanan was about to take the four white fungus away, "We suspect that there is something wrong with this batch of white fungus, so we must not eat it." ”

The middle-aged woman finally woke up from her sleep, "You mean that the affairs of Yuan Chunwang's family are related to these white fungus?" Oh my God, thanks to the fact that I don't like to eat white fungus, I thought about drying the white fungus and eating it when the children came back from vacation, but I escaped a catastrophe, you take it away, take it all away...... Oh, by the way, it seems that there are other neighbors who have also received the white fungus from him. ”

"Which neighbors have received it?"

"I don't know, I heard Yuan Chunwang mention it at the time."

Gu Yanan immediately called Zhou Lao, who was doing a flow survey in the county hospital, and asked him to ask Yuan Chunwang, who was hospitalized in the county hospital, about the specific situation of sending white fungus.

Soon, Zhou Lao asked for the list of neighbors who received white fungus, and Gu Yanan led the disease control team to knock on the door door according to the list.

There are a total of 5 families who received Yuan Chunwang's white fungus, Yuan Jianfeng's family, the middle-aged woman's family, and another 3 families.

Two of them felt that the white fungus was a little sticky, so they didn't eat it, so they left it in the yard to dry.

There was a family that ate white fungus that had been dried for two days, and after eating it, there was a slight nausea and did not care.

Gu Yanan took back all the remaining white fungus and brought it back to the CDC laboratory.

——

8:30 a.m. the next day.

Lianhai Center for Disease Control and Prevention, Emergency Office.

Gu Yanan received the results made by the laboratory working overtime overnight.

Rice fermented acid was detected in the blood of Yuan Chunwang's family and the poisoning patients of the wedding banquet.

Bacillic acid was detected in the sweet soup of white fungus at Yuan Chunwang's birthday banquet and the sweet and sour fungus from Yuan Jianfeng's wedding banquet.

Fresh Tremella fuciformis samples in Yuan Chunwang's greenhouse were detected with rice fermented acid, and Pseudomonas coconut nucleic acid was positive.

Bacillic acid was detected in the white fungus recovered from a neighbor's house.

The CDC laboratory also conducted quantitative experiments on rice fermented acid on fresh white fungus samples and semi-dried white fungus, and found that the dried white fungus was significantly lower than the rice fermented acid content of fresh white fungus in the greenhouse, which also explained that the neighbors who ate dried white fungus did not have obvious symptoms, while those who ate fresh and spoiled white fungus at birthday banquets and wedding banquets would have serious symptoms.

Gu Yanan fed back the test results to the hospital in a timely manner, and the hospital adjusted the treatment plan in time.

At present, there is no specific drug for Pseudomonas coconut to produce rice fermented acid poisoning, but there is a literature to record the detoxification method, Gu Yanan checked the literature, and asked his brother Gu Jiashu about the real clinical treatment cases he encountered before, and then fed back the summarized method suggestions to the county hospital.

A few days later, the people who were poisoned at the birthday banquet and wedding banquet recovered and were discharged from the hospital one after another.

Gu Yanan arranged for county disease control personnel to go to Yuanjia Village to publicize the knowledge of eating fresh white fungus, deal with the contaminated white fungus in Yuan Chunwang's greenhouse, and at the same time send a popular science tweet on the disease control website about the poisoning of Pseudomonas coconut in white fungus and fermented food.

When the epidemic in Yuanjia Village ended, Gu Yanan began to write a summary of the epidemic.