Gu Jiashu took Lu Li's mobile phone and talked to Gu Yanan.

"Little sister, is your CDC laboratory sure it's thallium poisoning?"

"Well, high concentrations of thallium were detected in the patient's blood samples, and hair and urine samples are being tested, but the diagnosis can be confirmed only from the test results of the blood samples, and I highly suspect that the patients with gastrointestinal and nervous system symptoms in Dongcheng District in the past two days are all due to thallium poisoning caused by contact with food related to Lianhai Tu Restaurant, so these patients should be treated with thallium expulsion in time."

Gu Jiashu: "Since receiving this patient, our hospital has done a number of tests on him, including MRI, immune system testing, and a variety of pathogens, all of which are negative, I also suspect thallium poisoning according to his gastrointestinal, nervous system, and hair loss symptoms, but our hospital is still lacking in heavy metal testing, and I wanted to call you, but I didn't expect the results to come out." The special antidote to thallium poisoning is Prussian blue, and it is estimated that our hospital does not have a reserve of this drug, so I will call and ask first. ”

Gu Jiashu returned the mobile phone to Lu Li, and then used his mobile phone to call the hospital pharmacy to confirm.

Gu Yanan's side is searching for units that may have Prussian Blue reserves.

The calls of the Health Commission and the Food and Drug Administration were rounded, but there was no letter.

Gu Yanan thought that there was an expert in heavy metals among the alumni of the university, who happened to work at the Lianhai Chemical Institute, and maybe he would have it there.

was about to make a call, but Gu Jiashu's phone called.

"Brother, how's it going? Does your hospital have Prussian Blue reserves? ”

"Yes!"

Gu Yanan was taken aback by this answer, thinking that the hospital would have no reserves for this kind of medicine that is not commonly used.

Gu Jiashu then explained: "Originally, I didn't have much hope, but the person in charge of the pharmacy said that because of a multi-person cadmium poisoning incident last year, the hospital stockpiled a lot of heavy metal antidotes, including Prussian blue, a special antidote to thallium. I remember last year's cadmium poisoning incident, and your CDC was also involved in the investigation. ”

"Cadmium contamination incident in Jinshan Village?"

"Yes, that time."

"It's good to have reserves, Dongcheng District Community Hospital will need your help. Brother, you are busy first, and if there are new patients with similar symptoms, contact me in time. ”

"You know, before your disease control finds the source of the poisoning, there may be more patients."

——

Lianhai Center for Disease Control and Prevention, Emergency Office.

Gu Yanan received the test results from the laboratory.

High levels of thallium metal were detected in samples sampled from Lianhai Tu Restaurant, including leftovers from the previous two days, freshly pickled pickles, especially salt collected from the back kitchen salt jar, and the thallium content was seriously exceeded.

With such a high concentration of thallium, it is almost like using thallium salt as table salt.

It seems that the cause of the thallium poisoning of many people in Dongcheng District has been found, and the salt in the back kitchen of the Lianhai Tucai Restaurant was contaminated with thallium, resulting in the poisoning of customers and staff of the Tucai Restaurant who had eaten dishes made with contaminated salt.

But why is the salt in the local restaurant contaminated with thallium?

Could it really be that someone is poisoning?

Thallium poisoning in such a large number of people is already a serious public health emergency, and Director Yang of the center reported to the competent health department.

Soon, after layers of reporting, the city organized relevant departments to set up an emergency command team for this thallium poisoning incident.

As one of the panelists, Gu Yanan participated in the first group video conference.

Municipal Center for Disease Control and Prevention branch venue, director of the center - Director Yang, director of the emergency office?? - Gu Yanan, Chief of the Laboratory Section - Section Chief Li, as well as Zhou Jie, Gao Fei, Lu Li, Wang Xiaoxiao and Chu Qinggeng from the emergency team, as well as several people from other related departments.

There were also videos of several breakout sessions on the big screen, including the police station.

Several familiar figures can be seen in the video of the police station branch venue, including Nan Hanfei and police officer Xiao Li.

At the beginning of the video conference, Director Yang of the CDC reported on the progress of the CDC in the thallium poisoning epidemic, followed by a speech by a representative of the police station.

Wang Xiaoxiao leaned over slightly, and whispered to Lu Li, who was sitting next to him, "Officer Nan is also here." ”

"Well, this thallium poisoning epidemic is very tricky, and the people who can participate in this video conference are the backbone of each unit. Officer Minami is so good, it's not surprising that he can participate. ”

At the end of the video conference, all units began to divide their labor.

——

Dongcheng District, Lianhai City, a commercial street near Binhai Avenue.

Lianhai local restaurant.

The vicinity of the local restaurant was cordoned off by the police.

Gu Yanan took several people from the disease control emergency team to conduct a secondary investigation in the Tucai Restaurant.

The police were led by Nan Hanfei to investigate and collect evidence at the scene.

The back kitchen of the local restaurant.

Gu Yanan and Nan Hanfei stood by the stove, both staring at the salt shaker on the stove.

After testing by the CDC laboratory, the salt thallium content in this salt jar was seriously exceeded.

In other words, what is in this salt jar is thallium salt.

Where did such a high concentration of thallium salts come from?

Both had this question in their minds.

Because the staff of the local restaurant are all sick and hospitalized, and the chef in charge of the back kitchen is now lying in a coma in the ward of the First People's Hospital.

Only the proprietress was asked by the police to come to the store to assist in the investigation, but she didn't know anything.

Gu Yanan first called Section Chief Zhang of the District Disease Control and Prevention, who was still in the Dongcheng District Community Hospital, "Section Chief Zhang, please ask anyone among the staff of the Zhongtu Restaurant in the community hospital who knows who has access to the salt in the back kitchen?" ”

"Okay, I'll ask right away."

A few minutes later, Section Chief Zhang replied, "According to the boss, the kitchen is usually managed by chef Wang Dawei, but the boss is responsible for procurement, including salt." The owner said that he always bought salt from a regular supermarket, and every time he had a shopping list and an invoice, all in the drawer at the front desk. I also asked a few other chefs, and they all said that the kitchen is not very strict, and the waiters are often in and out, and everyone has access to the salt shaker. ”

Nan Hanfei also had news from his side, and the police officer who was sent to the community hospital also asked for the same news.

But these messages alone will not lock the target.

Nan Hanfei urged the police who went to the People's Hospital to investigate.

Gu Yanan called his brother Gu Jiashu again, "Brother, among the local restaurant employees you treated, are there any sober ones at present?" ”

"Yes, there is a waiter named Li Ming who is sober."

"Okay, help me ask him a few questions, do you know who has touched the salt jar in the back kitchen? Especially someone who has a financial interest in a local restaurant, or a stranger? ”

"Okay, you wait for my news."

A few minutes later, Gu Jiashu called, "Little sister, I asked for a clue, I don't know if it will help you." Li Ming said that three days ago, a homeless man went to the back kitchen of a local restaurant to steal sausages, and he also stole two packets of salt. Li Ming also told Chef Wang Dawei about this. Wang Dawei praised Li Ming at the time, and poured one bag of salt into a salt jar, and the other bag in a cabinet where salt was often placed. ”

Vagabond? Stealing salt? Put the recovered salt into the salt shaker?