The more Xiao Li spoke, the more scared he became, and Xiao Chu rarely comforted the patient, "Don't worry, I'm not sure if it's bird flu yet, what about your other colleagues?" Do you know about them? ”

Xiao Li pointed to Lao Zhang, who was still in a coma on the hospital bed next to him, "Next to him is Lao Zhang, the leader of our survey team, who is also sick now, more serious than me." ”

"What about the rest of the survey team?"

"I don't know about the others."

"Give me their contact information."

"I don't know their specific contact information, you can ask our unit office for it, I have the office number."

Xiao Li said the number of his unit's office, and Xiao Chu wrote it down.

If Lao Zhang and Xiao Li are in the outbreak of a cluster of avian influenza cases, then the members of the survey team who have been to the field survey together that day may be infected, and they should find out about the situation of others as soon as possible.

Xiao Chu called according to the number to inquire, and quickly found the contact information of the other members of the survey team.

Through phone calls, it was found that several other survey team members had similar symptoms, but the symptoms were mild, only fever and muscle aches.

Two members of the survey team went to their district hospital for treatment, while the others simply took cold medicine at home.

Xiao Chu immediately notified the Binhai District Disease Control and asked them to assist in isolating and treating those who were already being treated in the district hospital.

At the same time, the district CDC is also asked to go to the homes of other survey team members who are observed at home to take samples, and take corresponding isolation and observation measures.

After doing these things, Xiao Chu returned to the emergency office and found that Gu Yanan had finished the commissioning of the new instrument in the sequencing center.

Xiao Chu reported his work to Gu Yanan in a timely manner.

Gu Yanan nodded approvingly, "It's a good job, I know that in accordance with the principle of territorial management, we will notify the district disease control in time to help control other patients who may be infected, and then we will go to the wetland park to see the situation of those dead birds." ”

——

Binhai District, Lianhai City, Kongwang Mountain Wetland Ecological Park.

Gu Yanan and Xiao Chu drove the on-site flow shunting car to the entrance of the ecological park.

The so-called entrance is the end of a road under Kongwang Mountain, and if you want to enter the wetland again, you need to get down and walk on foot.

Parking the car on the side of the road, the two carried the sampling box and followed the path into the wetland park.

According to the route provided by the patient Xiao Li, the two quickly found a small lake closest to the entrance, and found a large number of bird carcasses in the grass on the shore of the lake.

The two put on protective clothing, put the dead bird's carcass into a sealed bag, double-packed it, disinfected it, and put it into a sampling box.

"Sister Yanan, there are really many types of dead birds this time, in addition to magpies, there are several kinds of water birds, and several are relatively rare species, it seems that this bird flu has a large impact." Xiao Chu was cleaning up the wild bird carcasses on the ground while talking to Gu Yanan.

"It's not sure if it's bird flu, if it's bird flu, such a wide range of wild bird deaths will definitely affect the poultry industry such as chickens and ducks, but we haven't received any news about it."

"Not bird flu? So what else can cause wild birds to die on a large scale? Xiao Chu seemed to be asking questions, and seemed to be talking to himself.

"There are many types of zoonotic pathogens that can infect birds and humans at the same time, and you can only know the pathogens when you go back to the laboratory to screen them."

After collecting the carcasses of wild birds by the small lake, the two continued to walk deeper into the wetland park.

At 10 o'clock in the afternoon, the sun was very hot, but the air in the wetland park was still very cool, and there were many mosquitoes flying under the trees.

As they walked, they observed their surroundings and found that there were also many carcasses of wild birds under the woods next to other lakes in the wetland park.

It is impossible to bring all the carcasses of wild birds back to the laboratory, so we can only pick a few representative ones, and most of them still collect secretions and blood from wild birds.

There were still a lot of wild bird droppings in the woods, and Xiao Chu used a cotton swab to collect some live wild bird droppings, put them into the sampling bottle, and took back the sampling box.

"Sister Yanan, so many dead birds are likely to spread bird flu, even if they don't spread bird flu, they will spread other pathogens, Lao Zhang and Xiao Li, who have been hospitalized, are examples, should we put a few warning signs near the wetland park?"

"Yes, in the afternoon, let the health education department make a few warning signs, and send people to come and place them along the periphery of the wetland park."

"It's just that the pathogen carried by wild birds has not been identified, what is written on the warning sign?"

"It's simple, just write that birds spread diseases, and it is forbidden to catch and eat."

The two walked around the wetland park for a long time, and finally collected representative bird samples, and when they returned to the Municipal Center for Disease Control and Prevention, it was already more than 3 o'clock in the afternoon.

First, the specimens collected in the wetland park were sent to the experimental building, and then the two did not go back to the emergency office, but found Section Chief Li of the laboratory department in the experimental building.

Comprehensive Laboratory Building, Office of the Chief of the Laboratory Section.

The door of the office was open, and Gu Yanan symbolically knocked on the door and went in directly with Xiao Chu.

Section Chief Li was sorting out the experimental data, and when he saw the two of them coming in, he immediately stood up from his desk.

"I was just about to call you to inform you of the test results, and you came."

"The result? Is it bird flu? ”

"It's not avian flu, I did both A and B generic and several avian flu subtypes, and they were all negative. According to your explanation, Director Gu, I screened with a respiratory multi-pathogen detection kit, and all of them were negative. ”

Gu Yanan was thinking about Section Chief Li's words, and Xiao Chu asked, "There are many pathogens in the respiratory tract?" How many items? ”

"There are 32 respiratory pathogens, covering the types of respiratory pathogens that are currently common in China, and all of them are negative. With these 32 excluded, I really can't guess which uncommon pathogen will appear. Section Chief Li shook his head impotently.

Xiao Chu is very worried about this sudden epidemic, "Judging from the situation of the two patients in the hospital, Lao Zhang and Xiao Li, the pathogen is very pathogenic this time, and the other members of their survey team also have similar symptoms, indicating that this pathogen is very contagious." The sudden emergence of such an unknown pathogen and the outbreak of clusters of cases will make the next epidemic prevention and control difficult if the specific pathogen species and transmission route cannot be identified in time. ”

Although Xiao Chu has only been in the CDC for a few months, what he said at this time is completely like a senior CDC.

Section Chief Li and Gu Yanan have been working in disease control for many years, and they also understand this truth, but they are secretly worried before they say anything.

Section Chief Li came up with an idea anxiously, "It's really not okay to ask for help from the national disease control." ”

"It's going to take a long time to start contacting the national CDC and sending the samples there, but if we can't think of a way, it's a solution." Xiao Chu echoed Section Chief Li.

"I don't need to send it to the national CDC, I still have a way to use high-throughput sequencing technology to screen for pathogens." Gu Yanan finally spoke.

"You mean the high-throughput sequencer that was installed this morning?" Section Chief Li asked in surprise, "But the engineer hasn't trained the experimenters yet, so he won't use it." ”