Lianhai Center for Disease Control and Prevention, Emergency Office.

Gu Yanan stared at the negative test report sheets.

The food specimens that the patient came into contact with are all here, including the most suspected wild honey, but the toxin that caused the disease is still unknown.

There are thousands of poisons that can cause human poisoning, and blindly testing is tantamount to looking for a needle in a haystack.

The members of the emergency response team meet in the office, and each person gives his or her own opinion, which is the case when the flow hits a bottleneck.

Wang Xiaoxiao used a projector to project the sorted materials on the large white wall of the office.

The data include the population, climate, vegetation, landform, crops, and outbreaks of the epidemic in Xiushan County...... These are all the background information that Gu Yanan asked Wang Xiaoxiao to sort out for this epidemic.

The data pictures flashed from the white wall one by one through the projector, and Wang Xiaoxiao explained on the side.

Xiushui Village, Xiushan County, is located in the southwest of Lianhai City, with a hilly landform and a part of the Yuntai Mountains.

Xiushui Village has 53 households and 208 people, and there are no schools in the village, so most of the villagers live in Xiushan County to facilitate school-age children to go to school.

Xiushui Village is 29 kilometers away from Xiushan County, and most of the young and middle-aged people in Xiushui Village work in the county seat or urban area, leaving only a few elderly families in the village.

The villagers make a living from farming, mainly growing rice, tobacco leaves, and cone millet.

Xiushan County is a large rice planting county in Lianhai City, and also grows a variety of cash crops, and there is a Chinese patent medicine manufacturing factory in the county......"

Lu Li suddenly interrupted Wang Xiaoxiao's words, "I remember, I always thought that the name of Xiushan County was very familiar, it turned out that there was a pharmaceutical factory, and the origin of Tripterygium wilfordii, the Chinese medicine used by my grandfather to treat rheumatism, was Xiushan County." ”

Wang Xiaoxiao: "Well, Xiushan County has a long history of Tripterygium wilvernia planting, and in addition, it also grows ......."

Gu Yanan stood up suddenly, "Notify the laboratory and test triptolide." ”

Although Lu Li hadn't figured out why Gu Yanan suddenly asked the laboratory to test triptolide, he still notified the laboratory as required.

Zhou Jie asked, "Do you suspect that the cluster poisoning incident in Xiushui Village was caused by triptolide?" ”

"Yes, Tripterygium wilfordii is a woody liana of the family Euonymusaceae, also known as yellow vine wood, vegetable insect medicine, and red medicine. The whole plant of Tripterygium wilfordii is highly toxic, and when the human intake reaches a certain level, it will cause congestion, edema, bleeding, necrosis of the gastrointestinal mucosa, and can also damage the central nervous system, and damage the important organs of the heart, liver and kidney. ”

Lu Li suddenly realized, "The poisoning symptoms caused by Tripterygium Ivy are completely consistent with the symptoms of the patients in this cluster poisoning incident in Xiushui Village!" ”

Wang Xiaoxiao asked: "But our previous flow data shows that the patient has not eaten Tripterygium wilfordii. ”

Gu Yanan: "The whole plant is poisonous, and the patient may not have eaten the branches and leaves, but he may have come into contact with other parts, such as pollen. ”

Lu Li: "I know, bees can mix the pollen of Tripterygium wilfordii into honey, and the villagers will be poisoned if they eat honey containing Tripterygium wilbidium pollen. ”

Goofy asked; "When I went to Xiushui Village with Zhou Lao to do on-site investigation, I didn't find any thunder wilford."

Gu Yanan: "When bees collect honey, they can fly up to 7 kilometers away from the hive, and the farthest can fly up to 14 kilometers. ”

The new flow plan came out, and everyone started to get busy.

The CDC emergency team was dispatched to the vicinity of Xiushui Village to find out if there was any Tripterygium wilfordii.

After the on-site shunting arrived at the entrance of Xiushui Village, the emergency team of five people acted separately, and each person was responsible for finding in one direction.

According to Wang Jianguo's previous confession, it was found that the location of the wild beehive was in the forest behind Xiushui Village, less than a kilometer away from Xiushui Village.

Gu Yanan decided to start the search from the location of the wild beehive in the woods.

Standing on the hillside behind the village, looking at the endless hills and mountains in the distance, Gu Yanan felt that there would be a lot of roads to walk today, and was about to enter the woods, when a familiar figure suddenly walked out of the forest.

"Nan Hanfei?!"

Nan Hanfei was dressed in casual sportswear, wearing hiking shoes on his feet, and holding a bouquet of wildflowers picked from nowhere, and when he saw Gu Yanan, he had a smile on his face.

"You're coming faster than I thought."

Nan Hanfei walked close to Gu Yanan, like an elf walking out of the woods.

Gu Yanan was stunned for a moment, and quickly came back to his senses, "How did you know that I would come?" ”

"Because we both have hearts."

Nan Hanfei still smiled when he spoke, as if he was joking, but he was so sincere.

Gu Yanan felt that Nan Hanfei's smile in front of him seemed to have the magic power to melt the iceberg, and the shell of his heart that had been cast for many years made a cracking sound, and he hurriedly changed the topic, "Why are you here?" ”

"I recently visited Xiushui Village, just finished, looking at the scenery nearby, this is for you."

Nan Hanfei handed a bouquet of yellow and white flowers in his hand to Gu Yanan, and said in an inviting tone: "When I looked at the scenery, I saw a lot of these small white flowers, and when I saw these flowers, I thought of you, I thought of sending these flowers to your office, but I didn't expect to meet you as soon as I came out of the woods, do you think we are very fateful?" ”

After only a few seconds, Nan Hanfei began to joke with a hippie smile again.

Gu Yanan took the bouquet and fixed his eyes on the small flowers.

The bouquet is clustered into a bunch of small white flowers, smaller than a fingernail, and larger when clustered into a bunch. There are also some branches and leaves attached under the bouquet, young brown-red leaves, and old emerald green leaves.

These little white flowers are actually the flowers of Tripterygium wilfordii.

In the bouquet there is also a bunch of small yellow flowers, the petals are small, like exploding wheat grains, sparsely clustered together, but the leaves on the peduncle are very fat.

The small yellow flower with stems and leaves is actually a Bo Luo, a poppy plant, the whole plant is poisonous, usually grows around the pond at the edge of the forest, it is considered a wild grass, and it is also used as a cash crop for large-scale planting into medicine.

It's such a coincidence, it's really looking for something.

Gu Yanan stared at Nan Hanfei in disbelief and asked in surprise, "Where did you find these flowers?" ”

"There are small yellow flowers in the forest, mixed in the weeds, not much, there are more small white flowers, over this mountain, there are patches over there, not wild, but human."

"You take me to find it."

"Okay."

Nan Hanfei took Gu Yanan through the woods in the back mountain, and encountered a big tree in the woods, there were many bee corpses under the tree, and there were traces of burning haystacks, this is where Uncle Wang found the wild beehive.

Continue on the hill and climb up the hill to the highest point of the hill.

The two of them stood on the top of a hill and looked out into the distance.

On one side of the mountain is Xiushui Village, and on the other side of the mountain is a large area of Tripterygium wilford vine in its flowering season.