Gu Yanan asked some questions from other patients, and found that some of the people infected with this disease had no contact with each other, and some were gathered together as a family, and the specific transmission route was still unclear based on the current clues.

Gu Yanan felt that the matter was serious, it seemed that the pathogen should exist in the external environment of Huaguo Village, what was it?

If we can't find a specific pathogen, and we can't find a specific mode of transmission from the current clues, then there is no way to prevent it.

Whether it is the treatment of patients or the prevention of the villagers, it is necessary to determine what the causative agent of this infection is.

The next step is to go back to the laboratory to test the patient's specimen.

——

Lianhai Center for Disease Control and Prevention.

Laboratory.

The laboratory staff conducted a full set of etiological and serological tests on the blood samples of the patients brought back by Gu Yanan, including typhoid, renal syndrome hemorrhagic fever, dengue fever, influenza, leptospira, and viral hepatitis, and the results were all negative.

Subsequently, serum antibodies and viral nucleic acids of 24 species of viruses such as Marburg virus, Lhasa fever virus, Ebola antibody, Lift valley fever antibody and viral hemorrhagic fever were detected by ELISIA and RT-PCR, and the results were all negative.

Gu Yanan received the test report from the laboratory and sat at the computer desk in the emergency office and pondered.

Which possible pathogen was missed?

Gu Yanan decided to start thinking again, starting from the beginning of this outbreak, including the patient's living environment, initial symptoms, the progress of the disease, and the effectiveness of the various treatment options provided by Gu Jiashu.

While comparing the clues, Gu Yanan's mobile phone rang.

Caller ID Nan Han Fei.

"Yanan, I'm in the hospital right now, and I have something I want to tell you."

When Gu Yanan heard this, his instinct was that Nan Hanfei was sick, "Are you okay?" What's uncomfortable? ”

"It's not me, I'm the hospital that sent the suspect here, I'm now in the hospital's infectious disease department, this suspect is the person who did the scene investigation in Huaguo Village last time, he suddenly fell ill when we cooperated with the investigation at the police station, and the symptoms were fever and vomiting blood.

I took him to the hospital's infectious disease department and found out that there were already many similar patients here, and I learned a little about your brother.

I think Lao Li Tou should know some clues that you need to do live investigation.

Lao Li Tou had a conflict with Zhang Lishan, Lao Li Tou said that Zhang Lishan had symptoms of fever and bleeding from the mouth, he just gently pushed Zhang Lishan, Zhang Lishan rolled down the hill, and died after being sent to the hospital.

I had the medical examiner perform an autopsy on Zhang Lishan, and the cause of death was asphyxiation due to pulmonary hemorrhage.

The autopsy also found that Zhang Lishan had bleeding in multiple organs in his body, that is, Zhang Lishan had a tendency to bleed in his internal organs before he was pushed down by Li Lao Li's head, which may be related to his infection with a certain disease.

Judging from the onset time of Zhang Lishan's illness, he may be the first case of this outbreak. ”

The first case of each outbreak is very important for the overall flow of the epidemic.

With this clue, Gu Yanan decided to conduct a comprehensive epidemiological investigation of the possible first case, Zhang Lishan, as well as the people and circumstances who had contact with him.

"Okay, you wait for me, I'll go to the hospital to find you now, and learn more about Zhang Lishan's situation......"

Gu Yanan stood up from his desk and was replying to the phone, when suddenly his eyes were dark, his feet were soft, and he fell to the ground in the office with his mobile phone.

Lu Li and Wang Xiaoxiao, who were also in the emergency office, hurriedly stepped forward and hurriedly helped Gu Yanan up.

"Sister Yanan, what's wrong with you?"

Gu Yanan can move, and his consciousness is also very clear, but just now his legs and feet were soft and his eyes were black, but now he reacted and looked around, but found that it was blurry.

Gu Yanan's voice was cold, "I...... I can't see. ”

——

Lianhai First People's Hospital, Department of Ophthalmology.

Gu Yanan was driven to the ophthalmology clinic by Lu Li and Wang Xiaoxiao.

Nan Hanfei was the first to know the news, because he was talking to Gu Yanan on the phone at the time, and suddenly there was no sound in the mobile phone, he felt that something was wrong, and immediately called back after hanging up the phone, and waited here in the ophthalmology clinic after knowing the situation.

Gu Jiashu got the news and immediately rushed over.

Now the small ophthalmology clinic is crowded with people, in addition to the doctor and Gu Yanan, who visited her, there are also Lu Li, Wang Xiaoxiao, brother Gu Jiashu, and Nan Hanfei who sent her.

The ophthalmologist looked at the black people in the consultation room, and his face was not very happy, "I check on patients, too many people will affect them, except for patients, everyone else will go out." ”

Lu Li, Wang Xiaoxiao, and Nan Hanfei all withdrew from the consultation room after listening to the doctor's words, but Gu Jiashu stayed.

Gu Jiashu and the ophthalmologist are both colleagues in the hospital and know each other, Gu Jiashu explained the reason for staying in time, "This is my little sister, she was infected with the Ebola virus before, and she has just recovered and been discharged from the hospital. ”

The ophthalmologist knew Gu Jiashu's worries, "Okay, Dr. Gu stays, you are worried about what sequelae she has." ”

"The sequelae of Ebola virus infection are unlikely because she had a comprehensive physical examination before she was discharged from the hospital, and the Ebola virus was not detected in blood, urine and other body fluids.

What worries me is that our infectious disease department has recently received a lot of patients with fever and bleeding symptoms, and she has been to our infectious disease ward for flow investigation and contact with patients. ”

Ophthalmologist: "Do you suspect that he may have been infected by this fever patient, and what is the pathogen this time?" ”

"At present, the type of pathogen has not been identified, and it is initially speculated that it is a virus, and it is because the pathogen is unknown, so I am more worried."

The ophthalmologist took the protective suit and put it on himself, "Now it's okay to avoid the further spread of the pathogen." ”

Gu Yanan has been listening to the conversation between the two doctors, and she thinks it is unlikely that her brother Gu Jiashu's speculation is possible.

"Brother, I see that this fever patient has no symptoms of vision loss, I should not have been infected by them."

"Not necessarily, each patient's symptoms are different, you have some fever now, obediently cooperate with the doctor's examination, and wait for the laboratory to confirm the diagnosis."

The ophthalmologist, dressed in protective clothing, began to examine Gu Yanan.

Under the eye lamp, Gu Yanan's originally black pupils began to turn a little yellow and green.

This symptom occurs in both eyes, and the right eye is more severe.

"How do your eyes feel now?" The ophthalmologist asked.

"I felt a stinging pain in my eyes, and I couldn't see clearly."

"When did you start tingling?"

"I started to have a little discomfort in my eyes a week ago, and at the time I thought it was because I didn't sleep well, but today I suddenly can't see."

Hearing this, Gu Jiashu complained in his heart that he hadn't noticed the change in his little sister.

"There are also lesions under the eyes, I will draw some fluid out of the eyes, don't be afraid, although it looks scary, it won't hurt."

"Oh."