Nan Hanfei here was about to explain to Gu Yanan, and Gu Yanan's mobile phone also rang twice.

Gu Yanan received a text message, which was sent by his brother Gu Jiashu.

The hospital received a patient with severe pneumonia who was transferred to the hospital, and the course of the disease progressed rapidly, Gu Jiashu suspected that it was the flu and wanted the CDC to do a flu test.

Nan Hanfei and Gu Yanan left the hotel at the same time and went their separate ways.

——

Lianhai Center for Disease Control and Prevention, Laboratory.

Gu Yanan handed over the specimens of severe pneumonia patients sent by Gu Jiashu to the laboratory staff for influenza virus testing.

Two hours later, the experimenter reported that "the influenza nucleic acid test of the specimen was generally positive for type A, but the subtype had not yet been identified." ”

"Type A untyped? So what subtypes of type A have you done? ”

"Because the recent epidemic of influenza viruses has been seasonal H3, we have only done the H3 subtype, and the other subtypes have not been done."

"Check all the subtypes of type A, not only H, but also N."

According to Gu Yanan's requirements, the laboratory personnel used all the existing influenza kits and checked the specific H and N subtypes of influenza in the specimens.

Two hours later, the results were in.

The influenza virus in the patient's specimen was confirmed to be the H7N9 avian influenza virus.

Looking at the test report sent by the laboratory, Gu Yanan's heart sank.

It turned out to be a human infected with the H7N9 avian influenza virus.

The H7N9 influenza virus is usually only endemic in chickens, ducks, birds and other avian animals, and is not very pathogenic to birds.

Although human cases of H7N9 avian influenza have been reported, there has never been a case in Lianhai City, and this case is now the first confirmed case of human infection with H7N9 avian influenza in Lianhai City.

Historically, influenza viruses have created a human pandemic every time they cross an ethnic barrier.

Gu Yanan sensed the seriousness of the situation and immediately sent the test results to Gu Jiashu.

At the same time, Gu Yanan decided to immediately conduct an epidemiological investigation on the severe pneumonia patient in the hospital, where did the H7N9 avian influenza virus come from?

Only by finding the source of infection and the route of transmission as soon as possible can we prevent more people from being infected, otherwise the epidemic may spread.

Gu Yanan immediately set off to rush to the hospital.

——

Lianhai First People's Hospital, Department of Infectious Diseases.

Gu Yanan found the doctor's office where his brother Gu Jiashu was.

As soon as he entered the office, without waiting for Gu Yanan to speak, Gu Jiashu asked first: "You came here to conduct an epidemiological investigation on that avian flu patient?" ”

"Yes, he is the first human case of H7N9 avian influenza in our Lianhai City, which is important for his epidemiological investigation."

"I knew you would come, but I didn't expect it to come so quickly, here is Li Guoqing's case, you can take a look at the medical records first, and we will go to his ward later."

Gu Yanan took Li Guoqing's case from Gu Jiashu and looked at it carefully.

Li Guoqing, male, 42 years old, from Lijia Village, next to Crescent Lake in the suburbs of Lianhai City.

Occupation: Farmer.

Cough, sputum, and fever for 6 days, and entered the First People's Hospital of Lianhai City yesterday morning.

Six days before admission, he had cough, sputum production and fever without obvious cause, and his body temperature reached up to 39.5 degrees Celsius.

The cough is paroxysmal, with thick yellow sputum and is accompanied by coughing up blood.

No muscle aches, no headaches, no abdominal pain, diarrhea and other symptoms.

Symptomatic treatment at a local suburban health center (the exact use of drugs is unknown) did not improve.

Li Guoqing's symptoms worsened, and he gradually developed blood in the sputum, chest tightness, and difficulty breathing, and was transferred to the Department of Respiratory Medicine of the First People's Hospital of Lianhai City.

Physical examination at hospitalization: clear consciousness, poor spirits, wheezing appearance, coarse breath sounds in both lungs on auscultation, moderate crackles, and no obvious positive signs in the rest.

Chest CT showed pneumonia in both lungs, exudative lesions in both lungs, ground-glass shape, mainly involving the interstitium of the lungs.

Looking at the current treatment situation, the antiviral drug oseltamivir has been used.

After Gu Yanan finished reading Li Guoqing's medical records, Gu Jiashu said on the side, "Because it was just confirmed that Li Guoqing was infected with the H7N9 avian influenza virus, he was transferred from the Department of Respiratory Medicine to our Department of Infectious Diseases, and a separate ward has been arranged for him to be isolated and treated." ”

Gu Yanan: "Li Guoqing's occupation column only says farmers, have you ever understood the specific situation of his family?" ”

"I don't know much, but it was his wife who sent Li Guoqing, who introduced him that Li Guoqing's family lives in Lijia Village, next to Crescent Lake in the suburbs, and has been growing rice for a living for generations, and occasionally comes to the city to sell the vegetables he grows and can't eat."

"Does he have chickens and ducks at home?"

"I don't know. Li Guoqing's wife is outside the isolation ward, if you have anything to ask, ask his wife. ”

Gu Jiashu was about to take Gu Yanan to the isolation ward, but was stopped by Gu Yanan.

Gu Yanan: "Li Guoqing's wife is a close contact of an avian influenza patient, and she may be in the incubation period of avian influenza now, so you should take precautions when you come into contact with her. ”

"I understand, our hospital also has spare protective clothing, so I'll pick up a few sets of them."

Gu Jiashu took Gu Yanan to Li Guoqing's isolation ward.

On a bench in the corridor outside the ward sat a slightly chubby middle-aged woman.

When approaching the middle-aged woman, Gu Jiashu said, "This is Li Guoqing's family, and this is Director Gu of the Emergency Office of the Municipal Center for Disease Control and Prevention." ”

The middle-aged woman stood up from the bench and looked at the two heavily armed doctors, feeling a little frightened, but she still took the initiative to ask Gu Jiashu, "Doctor, my husband really has bird flu?" ”

"After testing by the laboratory of the Municipal Center for Disease Control and Prevention, Li Guoqing was indeed infected with the H7N9 avian influenza virus."

The middle-aged woman's already anxious face was already crying, "Doctor, I heard that this bird flu will kill people, you must save my husband." ”

"Don't worry, we will do our best, Director Gu has some questions for you, please try to answer them truthfully."

The middle-aged woman nodded and looked at Gu Yanan.

Gu Yanan asked: "Has Li Guoqing been in contact with poultry recently?" Especially chickens and ducks that have died of illness and the like? ”

"My family doesn't raise chickens or ducks, but my neighbor Li Erzhu's family has a lot of chickens, and the smell of chicken manure often wafts into my yard, but my family has a bad relationship with Li Erzhu's family and won't go to the door.

Doctor, was my husband's bird flu infected by Li Erzhu's chickens? ”

"You don't know until you go to the scene to investigate."

Li Guoqing's wife seemed to conclude in her heart that her husband's infection with bird flu was related to the chickens raised by Li Erzhu's family next door, and she did not believe the disease control staff, so she hurriedly added: "Li Erzhu's chicken coop is separated by a wall from my yard, and every time the wind blows, the smell of chicken manure makes people unable to sleep, and once their chickens ran over the courtyard wall to my yard." ”

"When?"

"Just six days ago."

"Li Guoqing has touched that chicken?"

"No, my husband just used a shovel to drive the chickens out of the yard."

Gu Yanan thought to himself that Li Guoqing's infection with avian influenza could not be ruled out as the possibility of the spread of Li Erzhu's chickens next door.

Gu Yanan asked again: "Has Li Guoqing eaten chickens and ducks recently, or wild birds?" ”

Li Guoqing's wife suddenly became her eyes flickering, and after thinking about it for a few seconds, she shook her head, "No! ”

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