On the way from the entrance of the village to the patient's home, Section Chief Zhang introduced what he had learned to Gu Yanan.

"The informant's name is Yuan Chunwang, 59 years old this year, with two sons and a daughter, the eldest son Yuan Dazhu and the youngest son Yuan Xiaotian are both married and live in Yuanjia Village, and the daughter married into the next Xiaozhuang Town.

The eldest son, Yuan Dazhu, has a pair of sons and daughters, usually runs a small pig farm, in order to facilitate pig raising, so he lives in a self-built house on the pig farm, the pig farm is outside the village next to the river, two miles away from the village.

The youngest son has just gotten married, and the husband and wife live in the west of the village, usually planting two vegetable greenhouses.

Father Yuan Chunwang and his wife live in the east of the village, and they usually grow two vegetable greenhouses.

Daughter Yuan Chunhua lives in the town, a family of three, a four-year-old son, who usually farms, and has a commissary at home.

Yesterday was Yuan Chunwang's birthday, his sons and daughters came to congratulate him on his birthday, and they had dinner together at Yuan Chunwang's house at noon, a total of 11 people, and they went back to their respective homes after lunch.

In the evening of the same day, that is, last night, Yuan Chunwang and his wife began to vomit and diarrhea, and his wife also began to vomit blood, Yuan Chunwang called the eldest son for help, and found that the eldest son's family was also sick, and called the younger son, but could not get through, and called his daughter's family again, only to know that the daughter's family had been hospitalized.

Yuan Chunwang couldn't get through to his youngest son's house, so he went to his youngest son's house in the west of the village, and found the younger son and his wife in the yard lying dead in the yard. ”

After Section Chief Zhang finished his introduction, the CDC and his party had arrived at the door of his youngest son, Yuan Xiaotian.

The gate of the courtyard was crowded with onlookers, and a ring of warning tapes swayed in the wind.

There was a police figure shaking in the courtyard.

Gu Yanan and his party squeezed through the crowd of onlookers, preparing to enter the courtyard.

There was a young policeman guarding the cordon, and when he saw that someone was about to break into the cordon, he stepped forward to stop him, "The scene of the crime, you can't enter randomly." ”

Gu Yanan showed his work card, "We are from the Municipal Center for Disease Control and Prevention, and there is a food poisoning epidemic here, so we will do on-site investigation." ”

The young policeman didn't dare to let him go, and looked behind Gu Yanan, there were still a lot of people coming from the disease control, "There are so many of you coming in, it will destroy the scene." ”

Section Chief Zhang said to the young policeman: "Comrade policeman, I know that you are very meticulous in your work, but our disease control work is also very urgent, we have to go in to investigate the cause of the disease, the patients in the hospital are still waiting for the results of our investigation, if the source of poisoning cannot be found, more people may be affected." ”

Lu Li echoed on the side, "Comrade police, our work of disease control and your police work will definitely not conflict. ”

Wang Xiaoxiao: "Not only is it not conflicting, but sometimes it complements each other." ”

The young policeman was moved, "Then you wait, I'll report to the boss." ”

The young policeman made a phone call, and soon, a familiar figure stepped out of the yard.

Nan Hanfei appeared, provoked a vigilance and brought the people of disease control to release.

Nan Hanfei looked at Gu Yanan and smiled, "I knew that your disease control would definitely come, but I didn't expect to come so soon." ”

When the murder case occurred, it was not surprising that Nan Hanfei led a team to investigate, Gu Yanan asked, "When did you come?" Is the body still inside? ”

Nan Hanfei: "I just arrived this morning, but the local police have already come last night, and the body was transported to the forensic center, so I came to visit the scene today." ”

Gu Yanan entered the courtyard and found that there were various markings made by the police in the center of the courtyard, and a large pool of half-dried dark red vomit was distributed in the middle of the courtyard.

There were several police officers taking pictures for evidence.

Gu Yanan asked Nan Hanfei: "When can you finish?" CDC has to take samples, and the vomit, soil, and food in the room have to be collected. ”

Nan Hanfei glanced at Xiao Li, who was busy, and Xiao Li made an "OK" gesture, indicating that the on-site investigation was basically over.

"You CDC can take samples now, and wait for the results to ......"

"Understood, resource sharing." Gu Yanan didn't wait for Nan Hanfei to finish speaking, and began to instruct the emergency team to do things, "Lu Li took Xiao Chu to the kitchen, and Xiaoxiao collected vomit and soil samples in the yard. ”

The emergency team acted separately, and Gu Yanan stayed in the courtyard to understand the situation with Nan Hanfei.

"Captain Nan, I know that you have a confidentiality principle before closing the case, but some information can still be shared, so can you disclose some news to our disease control?"

"Yanan, you don't have to be polite to me, I will tell you everything I can say. Before you came to CDC, I had already done an on-site visit in the village. Yuan Chunwang's family is usually kind to people, has no enmity, and has no conflict of economic interests, so the possibility of poisoning and killing is preliminarily ruled out, and it should be like your disease control speculation that it is food poisoning. ”

"Your police have seen the body, have you found anything? Are the autopsy results out? Have you checked the type of poison? ”

Nan Hanfei: "The forensic doctor has done an autopsy, the deceased was bruised, had vomited a lot of blood before death, died of acute liver necrosis, bleeding in lungs, stomach tissue, endocardium, and cerebral edema. Nitrite poisoning is initially suspected, poison testing is ongoing, and results are expected in the afternoon. ”

If, as the forensic doctor speculated, it was nitrite poisoning, then the next poisoning was the salt that the deceased had eaten.

Judging by the number of cases and deaths, the amount of nitrite consumed must be very large.

Gu Yanan felt that something was wrong, if a large amount of nitrite was ingested, then the onset time should be earlier, but the time of death of the deceased was about 6 hours after eating.

If not nitrite poisoning, what would it be?

Onset 6 hours after eating, which is more like microbial poisoning.

Whatever the reason, Uncle Yuan's family became ill because of yesterday's noon dinner, and going to Uncle Yuan's house should be able to find more clues.

Gu Yanan: "Have you police been to Uncle Yuan's house?" ”

Nan Hanfei: "I have already been there in the morning, collected some food and went back for toxicology testing, because I initially suspected poisoning, so I sent it to the toxicology department for routine poison testing." ”

Gu Yanan nodded approvingly, "This time, your police are moving faster than our disease control. ”

Nan Hanfei: "It's the local police, do you want to go over now?" ”

"Well, yesterday's lunch at Yuan Chunwang's house was the beginning of this matter, and everything their family has eaten must be checked."

Soon, the disease control emergency team finished collecting specimens at Yuan Xiaotian's house and went to Yuan Chunwang's house in the east of the village.

Nan Hanfei explained a few words to the policeman Xiao Li, and went with the CDC group.

On the way, I happened to pass by a villager getting married, and a wedding car blocked the road in the village.

The sound of firecrackers was deafening, and the red paper that exploded was scattered all over the ground, and the atmosphere was very festive.

When the bride got out of the car, many villagers who had come to congratulate her gathered together, talking about how beautiful the bride was, and waiting to attend the wedding banquet at noon.

The group walked along the side of the road, trying to make their way through the crowd of congratulations to Uncle Yuan's house.

The relatives of the groom's family distributed candy among the crowd, and whether they knew anyone or not, they gave candy to anyone they saw.

Lu Li was also stuffed with a few pieces of candy in his hand.

Lu Li originally thought that it was working time and should refuse, but he felt that it was rude to return the candy to others, so he smiled and said, "Congratulations, happy newlywed." ”

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