Gu Yanan has eaten fish since he was a child, and his favorite food is fish gills, and when eating, Gu Jiashu will give the tender meat next to the gills to his little sister.

Gu Yanan put the gill meat in his mouth, chewed and swallowed it, and then asked, "What about the others?" ”

"What else?" Gu Jiashu asked blankly.

"Has the patient ever eaten meat products imported from BSE-endemic areas? For example, sausages, beef jerky, and the like.

Or has the patient used cosmetics imported from BSE-endemic areas, such as skin care products containing placenta, amniotic fluid, collagen, brain sugar, etc. extracted from sick cows? ”

Gu Jiashu: "How can I ask so carefully? Aren't these questions supposed to be asked when you conduct your epidemiological investigation? And I don't know as much about how Creutzfeld spreads. ”

Gu Yanan nodded slightly while eating, "That's right, let your doctor ask everything, what are we disease control people doing." ”

Day 3.

The results of the immunoblot test and RQ-QuIC test results of the cerebrospinal fluid of the woman in red from the laboratory of the Lianhai Center for Disease Control and Prevention have been released.

14-3-3 protein was detected in the cerebrospinal fluid of the woman in red.

A diagnosis of variant Creutzfeldt-Jakob disease is recommended.

The woman in red was eventually diagnosed with variant Creutzfeldt-Jakob disease.

With the diagnosis, the CDC began an epidemiological investigation.

——

The home of the woman in red.

The woman in red is named Zhang Li, 38 years old, born and has been living in the West District of Lianhai City.

Zhang Li's family of three lives in a community called Xinhai Garden in the West District of Lianhai City.

Zhang Li works in a foreign trade company and earns a good income.

Zhang Li's husband, Yang Sen, is a Chinese teacher at a middle school in the West District of Lianhai City.

Their son, Yang Yang, attends an international middle school in a semi-military management in the city, where he usually lives and rarely returns home.

Gu Yanan, Lu Li and Wang Xiaoxiao drove the on-site flow shunting of the disease control and came to Zhang Li's home in Xinhai Garden, West District, Lianhai City.

The CDC informed Zhang Li's husband in advance, telling him that because Zhang Li had Creutzfeldt-Jakob disease, which was contagious, he would ask about some things and take epidemiological samples of Zhang Li's home.

Zhang Li's husband was very cooperative and waited at home in advance.

Zhang Li's home decoration is relatively luxurious, and at first glance, the economic level of the family is good.

Zhang Li's husband is polite, but because of his wife's illness, he looks a little haggard.

Yang Sen saw that three people from the CDC had come, and politely asked to pour water for the three people.

"No need Mr. Yang, let's ask you a few questions first." Gu Yanan stopped Yang Sen from pouring water and asked at the same time.

"Just ask."

"Has Zhang Li ever eaten meat products imported from abroad before? For example, sausages, beef jerky, and the like. Gu Yanan asked.

Janssen shook his head and said affirmatively, "No." ”

"Are you sure? Have you never bought beef or mutton imported from Europe, America, Australia and other countries? Or did you never eat when you went out to eat? ”

Yang Sen shook his head again affirmatively, "I'm sure, because my wife is a light eater and never eats red meat, so we never buy beef and mutton, and even if we go out to eat, we never eat red meat."

Because of my wife's habits, my son didn't eat much of these beef, mutton and pork since he was a child, and when he ate meat, he always ate fish, chicken or duck. ”

Gu Yanan didn't expect that Zhang Li was a light eater and didn't eat red meat. That route of infection by eating meat products imported from BSE-endemic areas can be ruled out.

Gu Yanan asked: "Has Zhang Li had surgery before?" ”

"Except for the caesarean section that gave birth 17 years ago, there are no other wounds on my wife's body."

It seems that iatrogenic transmission can also be ruled out.

Gu Yanan asked again: "Has Zhang Li used cosmetics imported from the mad cow disease epidemic area?" For example, skin care products containing placenta, amniotic fluid, collagen, brain sugar, etc., extracted from sick cows? ”

Yang Sen hesitated for a moment, as if recalling, and said: "Many of the cosmetics used by my wife are imported, but I don't know what exactly is in them, her cosmetics are all on her makeup table, you can go and take a look." ”

Yang Sen pointed to his and Zhang Li's bedroom, the door of the bedroom was open, and the makeup table next to the bed could be seen full of all kinds of cosmetics.

Before Gu Yanan went into the bedroom to check the cosmetics, he instructed Lu Li, "You go to the kitchen and take a look, focusing on the food stored in the refrigerator." ”

Although Yang Sen said that the family never ate beef and mutton, for the sake of the accuracy of the on-site flow investigation, Gu Yanan decided to let Lu leave to confirm.

"Understood!" Lu Li carried the sampling box to the kitchen.

Wang Xiaoxiao followed Gu Yanan into Zhang Li's bedroom, looking at the dazzling cosmetics on Zhang Li's dressing table, Wang Xiaoxiao sighed in her heart: Elderly women are really willing to spend money, so many cosmetics, many of them are brands that have never been seen.

Gu Yanan looked at the bottles of cosmetics and found that there were many imported brands in them, and there were many production places for cosmetics, including Europe, America, and Australia.

Gu Yanan picked out a few bottles from them and asked Yang Sen, who had been following him, "Can we take these bottles back?" Some tests are to be done. ”

"Yes."

Gu Yanan put the selected cosmetics into the sampling box, and asked Yang Sen before leaving: "Where did you buy these imported cosmetics?" Is there a receipt for purchase? ”

"There should be, wait a minute, I'll find it."

Yang Sen took out a few small receipts from the drawer of the bedside table in the bedroom and handed them to Gu Yanan.

Gu Yanan compared the cosmetics and purchase receipts one by one, and found that this was only part of it, "What about the other receipts, can you still find them?" ”

Yang Sen: "It's all here, if not, it's from the Internet." ”

Online purchasing? If you don't declare and pay taxes, isn't that smuggling? But how many of today's online stores will take the initiative to declare and pay taxes? Wang Xiaoxiao muttered in his heart.

"Do you have the URL and contact person for the purchase?" Gu Yanan asked.

Yang Sen: "My wife is doing these things alone, but I know that she has the WeChat contact information of the purchasing agent, which is in my wife's mobile phone, but now the mobile phone is in the hospital, and when I go to the hospital, I will send you after finding the contact from her mobile phone." ”

"Okay, here's my contact information." Gu Yanan left her contact information.

After completing the on-site flow investigation work, Gu Yanan, Lu Li and Zhang Xiaoxiao drove the flow shunting car back to the CDC.

On the way back, Lu Li said to Gu Yanan, "Yang Sen shouldn't be lying, there is no trace of red meat in his kitchen, there are only two fish and half a duck in the refrigerator, and the rest are vegetables." ”

Wang Xiaoxiao: "Zhang Li's husband is an honest man at first glance, and it is related to Zhang Li's condition, he should not lie." ”

Lu Li: "Many sporadic Creutzfeldt-Jakob disease can't find the source of infection, I don't know what will happen to Zhang Li's illness this time?" ”