Although he felt strange, Nan Hanfei quickly replied: "The autopsy report just came out in the morning, and the cause of death was acute renal failure caused by hemolysis. ”

"What about the cause?" Gu Yanan asked.

Nan Hanfei was puzzled, "Isn't acute kidney failure the cause of death?" ”

"Causes of acute kidney failure?"

"Isn't it hemolysis?" Nan Hanfei asked uncertainly.

"And what about the cause of hemolysis? Didn't check for pathogens? ”

Although Nan Hanfei has some medical knowledge, he doesn't know too much professional medical knowledge, so Nan Hanfei asked directly: "Do you suspect that there is a problem with the autopsy report?" ”

"I heard you say before that the deceased in the Tianqiao murder had excreted black urine, and today in the hospital, I also found a patient with black urine fever, the symptoms are the same as you described, I suspect that the cause of death of the deceased in the Tianqiao murder was black urine fever caused by malaria."

"Malaria?! Do you suspect that the deceased in the flyover murder had an infectious disease? ”

"There is a high level of suspicion that if he is really a malaria patient, then we are going to have to do an epidemiological history investigation on him, so now we need a definitive result."

"Okay, I'll notify the medical examiner for a second autopsy now."

——

A day later.

The autopsy results of the medical examiner came out, and the deceased in the flyover murder was positive for the malaria parasite.

Nan Hanfei sent the electronic version of the autopsy results to Gu Yanan.

Seeing the results, Gu Yanan determined that the deceased was a malaria patient, and immediately began to organize disease control personnel to conduct an epidemiological investigation.

To investigate the epidemiological history, it is necessary to find out the identity of the deceased in the flyover murder.

The police provided timely assistance.

Nan Hanfei took the initiative to send the details of the flyover murder to Gu Yanan in person.

The deceased in the Tianqiao murder is named Li Jianjun, 42 years old, a technician of a multinational company.

On the night of the flyover murder, Li Jianjun drank with a few friends and walked home along the road next to the flyover.

According to the surveillance along the road, Li Jianjun walked halfway, that is, when he approached the overpass, his steps began to stagger and seemed to be drunk.

The first time Li Jianjun fell was next to the two homeless men next to the overpass, and was later pushed awake by the homeless man, and continued to walk a few steps forward, pee once, and then fell to the ground unconscious.

The two homeless men called the police, and by the time the police arrived, Li Jianjun was already out of breath.

That's what happened on the night of the flyover murder.

Gu Yanan found Li Jianjun's family and friends based on the identity information provided by the police.

——

Li Jianjun's home.

Gu Yanan and Lu left the on-site epidemiological investigation vehicle of the CDC and found Li Jianjun's residence in a community in Lianhai City before his death.

Li Jianjun's wife is a middle-aged woman with a slightly chubby body who is still grieving the unexpected loss of her husband.

Gu Yanan showed his work card, explaining that he was a staff member of the Municipal Center for Disease Control and Prevention and wanted to investigate the cause of Li Jianguo's death.

Li Jianguo's wife was very cooperative, and after opening the door, she invited Gu Yanan and Lu Li to sit on the sofa in the living room, and poured tea for the two.

Gu Yanan suspected that Li Jianjun's malaria might have been infected in a malaria-endemic area abroad, so he first began to ask Li Jianjun about his experience of going out, "Mrs. Li, we want to know if your husband has traveled to tropical areas such as southern China before the accident?" Have you ever been to any of these countries in Africa or Southeast Asia? ”

Li Jianjun's wife glanced at Li Jianjun's posthumous photo on the table in the corner of the living room, and said in a sad voice: "My husband is the technical backbone of the factory, and he is often sent on business trips abroad, and he just came back from Africa half a month ago. ”

"Do you know where you've been in Africa?"

"I've been to several countries, Sudan, Zimbabwe...... There are a few others, I don't remember exactly. ”

"What exactly does Mr. Li do in Africa?"

"It seems to be a field survey, and he didn't tell me what to do, he often stays in the rainforest for days at a time, and his work is very hard......," Mrs. Li said as she began to shed tears.

Gu Yanan thought to himself, this is right, several countries in sub-Saharan Africa are all high-incidence areas of malaria, and Li Jianjun should have been bitten by mosquitoes while working there and contracted malaria.

Li Jianjun, like Andy, was also an imported case of malaria.

Because malaria is only transmitted through mosquito bites, and Lianhai City does not have the Anopheles mosquitoes needed for malaria transmission, people who have been in contact with Li Jianjun are not in danger of being infected, so the on-site epidemiological investigation is much easier, and there is no need to investigate people who have been in contact with Li Jianjun.

Gu Yanan asked Mrs. Li some questions about whether Li Jianjun had symptoms of malaria before his death.

Mrs. Li said the basic symptoms, Li Jianjun had already had the typical third-stage symptoms of falciparum malaria people with chills, fever and sweating, at that time Li Jianjun did not care, thought it was just a common cold, took cold medicine, repeated twice, and then entered the intermittent period, felt that there was no big deal, so he went to drink with his friends, but he did not expect that the symptoms would suddenly worsen after drinking, and he appeared black urine and died on the way home.

After the epidemiological history of Li Jianjun was investigated, Gu Yanan and Lu Li came out of Li Jianjun's house.

On the way back to the CDC, Lu Li said to Gu Yanan: "Sister Yanan, although Li Jianjun and Andy have the same onset time, they have no connection, if there is a connection, they are all imported cases from Africa, and our epidemiological investigation should end here." ”

"It's not completely over, we have figured out the source of malaria, we know that they are imported cases, and our next step is to notify the relevant departments to close the entrance and prohibit more imported cases."

"Sister Yanan means to notify the immigration side?"

"Yes."

"How? Is it a phone call or an official letter? ”

"In this case, we will generally issue an epidemic notification, notify our health authorities, and at the same time send a copy to the relevant departments such as entry and exit."

"Oh." Lu Li nodded thoughtfully and continued: "I haven't been there yet, and I don't know how they work. Sister Yanan, next time you have the opportunity to take me to see it. ”

"I just have the opportunity, today I'm going to the airport to pick up a package, and by the way, I'll take you to the immigration studio at the airport to have a look."

——

Lianhai suburb, airport.

Gu Yanan parked the car first, and then led Lu Li along a path outside the airport into the airport hall.

On the way, Lu Li asked, "Sister Yanan, did someone send you a package by air?" ”

"No, I have a classmate who took the civil service examination for entry and exit inspection and quarantine in Lianhai City many years ago, she works in this airport, she has a package to give me, and I don't have time to send it to the CDC.

It turned out that I stopped by a friend who works at the airport to pick up the package.

Gu Yanan was familiar with the road to find the location of the exit hall for inbound and outbound passengers.

On one side of the hall there are several glass rooms filled with various surveillance instruments and several uniformed staff members.

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