Gu Yanan thought to himself, it seems that the route of iatrogenic transmission can also be ruled out.

Gu Yanan asked: "Has Liu Meili used cosmetics containing placenta, amniotic fluid, collagen, brain sugar and other ingredients before?" ”

Liu Meimei's parents listened to this series of professional terms, and their eyes were dazed.

Gu Yanan asked in a different way, "Have you ever used imported cosmetics before being beautiful?" ”

This time, Liu Meimei's mother nodded and replied: "When I was in college, I was reluctant to buy cosmetics, but since she joined the work herself, I saw a lot of cosmetics on her table that I didn't know my name, and the labels were all foreign characters.

Once I asked her, are these cosmetics expensive? She said that it was not expensive, and she was looking for someone to buy it from the Internet. ”

It is also an imported cosmetics purchased online, which is similar to the situation of the first patient, Liu Li.

Gu Yanan: "Can I collect some of Liu Meimei's cosmetics and bring them back for testing?" And do you know the URL of Liu Meimei's online purchasing? ”

Liu Meimei's mother: "We were transferred to the hospital this time, and we left in a hurry, and we didn't bring beautiful cosmetics at home. As for beauty looking for someone to buy cosmetics, we don't know very well, I see that she uses her mobile phone every time to operate, using that WeChat contact. ”

Liu's hometown is more than 600 kilometers away from Lianhai City, and it takes a lot of time to drive there.

Gu Yanan thought of contacting the local CDC in Liu Meili's hometown and asking them to help go to Liu Meili's home for sampling, and then send the samples to the Lianhai CDC to save trouble.

Just do it, Gu Yanan used her mobile phone to contact the local CDC in Liu Meimei's hometown, and the other party happily agreed.

Before Gu Yanan left the hospital, he instructed his brother Gu Jiashu to let Gu Jiashu find her contact person for purchasing cosmetics online from Liu Meimei's mobile phone.

——

Lianhai Center for Disease Control and Prevention, Emergency Office.

A delivery guy holds a package and knocks on the door of the emergency office.

The courier brother stood at the door of the office with a loud voice, "Gu Yanan's package, come and get it!" ”

Gu Yanan was reading the relevant information of Creutzfeldt-Jakob disease at his desk, and when he heard the voice, he immediately greeted him, took the package and saw that the sender was the local CDC where Liu Meili was located.

Yesterday, Gu Yanan called the local CDC, and today Liu Meimei's cosmetics were sent to Gu Yanan.

Unpacking the package, Gu Yanan was about to send the sent cosmetics to the CDC's laboratory, when he happened to meet Lu Li coming out of the laboratory.

Lu Li walked over to him, looking a little excited, and said loudly to Gu Yanan: "Director Gu, the test results of the cosmetics sampled from Zhang Li's house have come out, and prions have been detected in one of the bottles of lotion. ”

The result was as expected by Gu Yanan.

Gu Yanan handed over the cosmetics used by Liu Meili that he had just received to Lu Li, and instructed: "These cosmetics should also be tested for Ruan's poison." ”

Lu Li handed over the test report of Zhang Li's cosmetics in his hand to Gu Yanan, and took over the cosmetics used by Liu Meili from Gu Yanan.

Lu Li took a closer look, picked up one of the bottles, and said in surprise: "This cosmetics are the same brand as the cosmetics sampled from Zhang Li's house before, and even the production date is the same, it should be the same batch." ”

Gu Yanan said to Lu Li, "The results will be available as soon as possible, this patient is still lying in the hospital, and now it can be determined that the source of infection of Zhang Likkobfeldt's disease is the cosmetics she used, so Liu Meili is also very likely to be, there are not a few people who have bought this cosmetics, we must find out the source of online purchasing and block the spread of Creutzfeldt-Jakob disease." ”

Lu Li's eyes were firm, "Director Gu, you go to check the online purchasing of cosmetics and the flow of those cosmetics, I am responsible for the laboratory, and the results will be produced as soon as possible." ”

Zhang Li's husband Yang Sen has already sent Zhang Li's contact information for finding someone to buy imported cosmetics on the Internet, and Gu Yanan found the purchasing agent online according to this contact information.

Gu Yanan first chatted with the purchasing agent online as a buyer.

Gu Yanan sent a photo of the bottle of cosmetics detected with prions to the purchasing agent and asked if he had purchased the cosmetics on his behalf. Where did he get the goods from? If you want to buy it, can you buy it from him again and get the exact same batch number?

The purchasing agent looked at the photos of cosmetics sent to him by Gu Yanan, and then looked at Zhang Li's contact address provided by Gu Yanan, and the purchasing agent said: The cosmetics are sold by him, and he still has inventory.

Gu Yanan found out the detailed address of the purchasing agent in the real world through chatting.

The real name of the purchasing agent is Wu Gang, and coincidentally, Wu Gang lives in Lianhai City.

When asked about this, Gu Yanan began to have some difficulties.

Because although the CDC has the right to conduct various on-site epidemiological investigations, it does not have the power to enforce the law, and the CDC is powerless to confiscate things, and needs the cooperation of other departments.

Gu Yanan still remembers that once he went to investigate the illegal processing of food in the black workshop, and was blocked from the door, and after coordinating various departments, the black workshop had been emptied.

In order to avoid the problem of last time, Gu Yanan began to prepare in advance.

Gu Yanan reported the test report of prions detected in the cosmetics used by Zhang Li from the CDC laboratory to the health department, and from above, contacted the Municipal Food and Drug Administration and the police, and took joint action to arrest Wu Gang, the purchaser, and confiscated a large number of illegal purchasing products from his residence.

If the purchasing agent fails to declare and pay taxes, it is actually smuggling, and Wu Gang confessed to the smuggling and sales process of his purchasing agent.

Gu Yanan tested the cosmetics confiscated from Wu Gang's residence, and in the same batch of cosmetics used by Zhang Li and Liu Meili, prions were also detected.

Gu Yanan began to trace the source of the cosmetics and the location to which they were sold.

Soon the results of the investigation came out, and the source of this batch of cosmetics happened to be a mad cow disease epidemic area somewhere abroad.

Because this batch of cosmetics did not go through the customs entry-exit quarantine inspection, this batch of cosmetics with prions from the mad cow disease epidemic area entered the country through Wu Gang's purchasing agent smuggling channel and sold to 16 locations across the country.

Gu Yanan began to track down the users of this batch of cosmetics.

Because of Wu Gang's sales records, 16 people who bought this batch of cosmetics were quickly found, including Zhang Li and Liu Meili, who had been hospitalized.

Fourteen other people were also identified, and five of them had early symptoms of Creutzfeldt-Jakob disease: depression, anxiety, apathy, delusions......

Cosmetics were withdrawn for 14 people and hospitalization was recommended.

Gu Yanan detected prions in the cosmetics purchased by these 14 people from Wu Gang.

Just when Gu Yanan felt that the transmission chain of the Creutzfeldt-Jakob disease outbreak had been completely figured out, Nan Hanfei called.

On the phone, Nan Hanfei said that Uncle Wang's condition was not good, and Xinxing Hospital ruled out the possibility of viral encephalitis and diagnosed with Alzheimer's disease.

Gu Yanan felt that Nan Hanfei's description was very suspicious, and in order to further understand Uncle Ge's situation, Gu Yanan personally went to Xinxing Hospital.