"The situation is not good, yesterday evening when I came to the investigation, I found that the number of patients suspected of poisoning in the community hospital increased one after another, and by the early hours of this morning, there were many more than 50 people, not counting the patients who were treated in other hospitals."

"More than 50 people?!"

This number is already a major public health event.

Gu Yanan hurriedly got up and dressed, took the car keys, and prepared to drive to the scene of the incident in Dongcheng District.

On the way, Gu Yanan listened to the test results of last night from the laboratory while driving.

"Director Gu, yesterday you told the laboratory that you were in a hurry to get results, so we first used the method of rapid nucleic acid testing to flush out the pathogens of common bacterial food poisoning and viral food poisoning, and have ruled out bacterial infections such as Salmon, Shiga, and Single-Zeng Listeria, as well as enterovirus infections such as rotavirus and EV71."

"You mean the causative agent hasn't been identified yet?"

"Well, common bacterial and viral food poisoning have been eliminated, and we need more detailed information to narrow down the pathogen, otherwise it will be like looking for a needle in a haystack."

"What about physical and chemical testing?"

"Last night, there was no physical and chemical group to test, and after people came this morning, I asked them to do the test of organophosphate poisons first, let's rule it out first. However, judging from the information you sent me last night, organophosphate poisoning is unlikely. ”

"Okay, the result is received, you guys are doing the elimination first, I am already on the way to the scene in Dongcheng District now, after I have more detailed information on the flow of information, I will give you feedback in time."

After ending the call with the laboratory, Gu Yanan informed the other members of the emergency team that Zhou Lao and Gao Fei also went to Dongcheng District to participate in the on-site investigation, and Lu Li, Wang Xiaoxiao and Xiao Chu were on standby in the emergency office.

——

Dongcheng District, Lianhai City, Community Hospital.

Hospitals are overcrowded.

Patients who have seen a doctor are hanging drips in the infusion hall, the doctor's office is packed, and there is a long queue outside the office.

Section Chief Zhang of Dongcheng District Disease Control and Prevention is conducting an investigation in the hospital with three dispatch staff from their on-site department.

Gu Yanan walked into the treatment hall alone, and saw a sea of people at a glance.

In the sea of people, Gu Yanan quickly found Section Chief Zhang.

"What are the situations in which the flow is transferred?" Gu Yanan asked Section Chief Zhang.

Section Chief Zhang handed a stack of case investigation forms to Gu Yanan, and explained, "We first learned some general conditions from the doctors, and then conducted a case investigation of the patients, and found some common points, all patients basically have abdominal pain, diarrhea, headache, numbness of limbs, poor spirit, tremors of hands and feet, unsteady walking and other symptoms, and some patients also have hair loss symptoms." ”

"Hair loss?" Gu Yanan exclaimed.

This symptom is very typical, and only certain chemicals, such as formaldehyde, benzene, and heavy metals, can cause hair loss.

Gu Yanan immediately called Section Chief Li of the laboratory, "Li Ke, I have learned some information at the scene of the flow investigation in Dongcheng District, I suspect that the symptoms of this patient may be caused by heavy metals and some special chemicals, you first check the common heavy metals, such as arsenic, mercury, thallium and other heavy metals that can cause hair loss symptoms, and then check formaldehyde, benzene and their derivatives." ”

"The specimens sent by the Dongcheng District Disease Control and Prevention last night were mainly vomit, nasopharyngeal swabs and blood, and if it was heavy metal poisoning, it was best to have urine and hair specimens."

"Okay, I'll collect the patient's urine and head as soon as possible and send it to the lab."

While talking, Zhou Lao and Gao Fei had already rushed to the Dongcheng District Community Hospital in a live flow shunting car.

Gu Yanan began to assign tasks to the two.

"Old Zhou, you cooperate with the doctors at the community hospital to collect the patient's urine and hair."

"Gao Fei, you and Section Chief Zhang are going to do a case investigation of the patient, and the content must be detailed, and ask all the patient's life and travel records in the last few days clearly, and don't miss any details."

"Understood!"

After explaining what happened here, Gu Yanan called Lu Li, Xiao Chu and Wang Xiaoxiao in the emergency office again.

"Lu Li, you contact the emergency department of the First People's Hospital to see if there are any patients with diarrhea, abdominal pain, headache, limb paralysis, and hair loss symptoms recently, I will send you an electronic version of the specific symptoms in a while, and you will check with the doctors in the emergency department according to the patient's symptoms on the case investigation form, and if so, each patient must be investigated on a case-by-case basis."

Xiao Chu helped Lu Li.

Wang Xiaoxiao, you will enter the direct epidemic reporting system in a moment, conduct a case search according to the symptoms of the patients in the case investigation form, see if there are any similar cases in Lianhai City recently, and find out all similar cases. ”

"Roger!"

It was very troublesome to conduct a case investigation of all the patients in the hospital, and it took a whole morning for dozens of patients in the hospital to finally be questioned.

The case questionnaires of all the patients were gathered together, and Gu Yanan wanted to find useful clues from them.

After looking at it, I found that although the patients were concentrated in Dongcheng District, there was little intersection in their daily lives.

The place of residence is not in the same community.

The frequented wet markets are not the same.

Although the source of drinking water is the same, but the people who drink this water source are all over the city, why are other people asymptomatic?

Something must have been missed in the case investigation.

Soon, Lu Li came with news from the First People's Hospital.

Since yesterday, the First People's Hospital has also received patients with similar symptoms, and after treatment in the emergency department, some have been transferred to the gastroenterology department, some to the neurology department, and some to the infection department.

The doctor in the emergency department was reminded by Lu Li that there was a large number of patients with similar symptoms in Dongcheng District, and it occurred to them that these patients were not isolated cases, but may have been exposed to the same pathogen, but showed different gastrointestinal and neurological symptoms because of individual differences.

Gu Yanan instructed Lu Li to continue to investigate the patient's case.

Wang Xiaoxiao logged on to the epidemic network in the emergency office, and quickly got the search results, and reported to Gu Yanan in time.

"Sister Yanan, the Xicheng District Community Hospital reported a food poisoning incident yesterday afternoon, involving 7 people, two families, and each patient's symptoms are similar to the symptoms of the patient on the case questionnaire you gave me, and the Xicheng District CDC is dealing with the outbreak. And I have also contacted the Xicheng District Disease Control and Prevention, they are doing on-site investigation, the case investigation form has not been completed, and they have sent me the completed part. Sister Yanan, will I transfer it to you now? ”

"Okay, transfer it to me right now."

Gu Yanan immediately turned on her mobile phone and prepared to receive the case investigation form for disease control in Xicheng District sent by Wang Xiaoxiao.

At the same time, I thought to myself that there were similar cases in Xicheng District, where the two urban districts were far apart, with a development zone in between, and drinking water from different sources.

The possibility of water contamination can be ruled out.

Are there other similar patients in Xicheng District?