Soon, Wang Xiaoxiao sent the case investigation form compiled by the Xicheng District Disease Control and Prevention to Gu Yanan's mobile phone.

After reading all the case questionnaires, Gu Yanan found a clue.

The food poisoning outbreak in Xicheng District, which had similar symptoms, involved two families living in the same community, in which the husband was a colleague, and the two families of seven had dinner in a restaurant in Dongcheng District the night before yesterday, and seven people had abdominal pain and diarrhea symptoms that night.

I went to the Xicheng District Community Hospital for treatment, and after a preliminary diagnosis from the community hospital, it was judged to be a food poisoning incident.

The attending doctor reported to the epidemic system at noon on the same day, and at the same time notified the Xicheng District Center for Disease Control and Prevention.

The only connection between the epidemic in Xicheng District and the epidemic in Dongcheng District is that they once dined together in a restaurant in Dongcheng District.

Is there something wrong with this hotel?

Have symptomatic patients in Dongcheng District also visited this store?

Is there a causative agent of this outbreak in this restaurant?

Are pathogens present in food? Water? Air? Outside the environment? Or is it something else?

Gu Yanan quickly sifted through the case questionnaire he had just seen in his mind, and most of the patients currently in the Dongcheng District Community Hospital had been to this restaurant called "Lianhai Tu Restaurant", but some of them had never been there at all.

What is the reason for the illness even though I didn't enter the hotel?

Gu Yanan was thinking about various possible reasons in his mind, but he couldn't figure it out for a while, and his brows were not only slightly furrowed.

Suddenly, the mobile phone rang again, and the caller ID was my cousin Li Xinran.

Picking up the phone, my cousin's slightly sleepy voice came from inside, "Sister, where have you been?" When I woke up, I realized that you were not there. ”

Gu Yanan glanced at the time, it was almost 12 noon, and his cousin's voice was obviously just waking up.

"I'm at work and you sleep until noon? Don't you have to go to class in the morning? ”

Li Xinran rubbed her eyes on the bed and replied lazily, "Sister, you forgot, I told you yesterday that our school is moving, and there is no class this morning, so I can sleep lazily." Alas, but no one cooks lunch when you're not there, so I think I'd better order takeout. ”

Gu Yanan originally wanted to say a few more words to urge his cousin to get up early to study, but he was awakened by a word.

Takeaway?!

Yes, it's takeaway.

Now that the takeaway business is developed, many people don't need to go to restaurants at all, and are used to ordering takeout to eat at home.

If these people in Dongcheng District who have not been to Lianhai Tu Restaurant order takeaway from their store, then there is also a chance to get in touch.

And if you follow this clue, it is likely that there is a problem with the takeaway food.

As long as you continue to track these foods and whether the same foods have been eaten by patients who have eaten in the store, there is a good chance that the source of the disease will be identified.

Seeing the dawn, Gu Yanan was inexplicably excited, "Xinran, you have done your cousin a great favor, okay, you continue to sleep." ”

Li Xinran on the other end of the phone was baffled by his cousin's words, but he just wanted to order takeout, why did he do his cousin a big favor?

Li Xinran, who was drowsy, didn't want to think about it, so she put on the quilt and prepared to sleep.

Here, Gu Yanan was busy asking Gao Fei and the on-site staff of Dongcheng District Disease Control and Prevention to re-investigate the case, and the focus of the question was, have patients who have never been to Lianhai Tucai Restaurant ordered takeaway from this restaurant?

Soon, the results of the investigation came in.

As Gu Yanan expected, patients who had never been to Lianhai Tu Restaurant had ordered his takeaway.

I also asked in detail about the types of takeaways.

There are many variety, such as cold vegetable platter, hot stir-fried dishes, dumplings, steamed rice, and complimentary drinks and drinks.

There is no common ground in the type of takeout ordered by each patient, so it is necessary to enter the store and do a detailed investigation.

——

Dongcheng District, Lianhai City, commercial street next to Binhai Avenue.

Lianhai local restaurant.

Gu Yanan, Zhou Lao, Gao Fei, as well as Section Chief Zhang and several staff members from Dongcheng District Disease Control and Control, drove the on-site flow shunting and parked at the door of the local restaurant.

At this time, it was around 12 noon, which was supposed to be the peak of the restaurant's passenger flow, but the door of this local restaurant was hidden.

Through the glass door, I saw that the hall was empty, and there was not a single table of guests.

Goofy pushed open the door and shouted, "Is the boss there?" ”

"In! Come now! "People hear before they hear it.

Soon, a middle-aged woman in her 40s ran out of the back kitchen.

The woman was wearing a fur coat and a delicate hairstyle, obviously not like a waitress, not even a chef, but a hostess.

The woman had an apologetic smile on her face, "I'm sorry, everyone, our store is closed today, and if you want to eat, go next door, or come in a few days." ”

Gu Yanan showed his work card, "Boss, we suspect that your store is related to a food poisoning epidemic, now come to investigate and sample, please cooperate." ”

The woman's face sank, her eyes were panicked, and she began to stutter when she spoke, "Eat ...... Food poisoning? Are you sure it's food poisoning? ”

Gu Yanan didn't answer, but asked rhetorically: "Why is it closed?" What about the staff? ”

The woman knew that she couldn't hide it, and she also wanted to know the truth, so she told the matter and the truth.

"I am the proprietress of this store, recently our store is simply haunted, somehow from two days ago the staff in the store began to get sick one after another, today my husband is also sick, not only diarrhea, but also full of pain, and now is hanging bottles in the community hospital."

The woman scanned the surroundings with suspicious eyes as she spoke, and asked worriedly, "Are you strange, our store has been open for six years, and there has never been an accident, so I don't know what happened this time?" In the past two days, all the employees in the store have fallen ill, will anyone be angry that there are many customers in our store, so they poison us? ”

Gu Yanan extracted useful information from the words of the proprietress that the employees of the local restaurant were all sick within two days.

If there is a problem with the food or environment in the local restaurant, why is the proprietress asymptomatic?

"Boss, have you eaten anything from this store recently? Or have you ever stayed in this store? Gu Yanan asked.

The proprietress shook her head, "I think the smell of oil smoke in the store is big, rarely come, the smell of vegetable oil made in the store is also big, even if I eat the things in the store, I have only eaten some small snacks, I haven't eaten anything in the last two days, I came here today because the staff and my husband are sick, no one looks at the store, I came here to hang up the sign of temporary business, this is not the sign has not been hung up, your disease control is coming." ”

The proprietress paused slightly, as if she felt that disliking the things in her store had a bad impression on the customers, and added: "The main thing is that I can't eat greasy things, and the taste of my store's food is still very popular with customers." ”

It seems that the proprietress is an idle person, and usually does not pay attention to the situation in the store at all, and there is food poisoning in the store, but she has not been affected and does not know much about the situation.

"Have you ever touched anything in the store? Especially something that can be entered? Gu Yanan continued to ask the proprietress .

"No, absolutely not. I always felt that the staff in the store were sick this time, so I didn't dare to move, and before I came, my husband also told me not to eat anything in the store. ”

It turned out that the boss had been alert.

"Your husband, that is, the boss, name ID number? There is also the information of all the employees in the store, and where they are now, please provide us with the trouble. Gu Yanan made a request to the proprietress .