He wrote with a marker pen on the whiteboard in his office, "Suspected case: Since July 1 this year, he has been treated at the Xincun Community Health Service Station and Xincun Hospital, and has taken one of the three antipyretic drugs aminopyrine, analgin, and Bupleurum.

Probable case: Since July 1 this year, a resident of the Xincun community has developed a fever with a body temperature greater than 38°C, accompanied by arthralgia, rash or bleeding spots, and one of the symptoms of musculoskeletal pain. ”

Yang Le, who was sitting in front of the whiteboard, approached Lin Xiaoxiao and whispered in her ear, "Team Li has formulated a case definition, and then we will re-launch the case search." ”

Sure enough, Li Bai began to reassign tasks to the emergency team.

Yu Fei and Gao Meng reviewed the outpatient logs and prescriptions of two medical institutions in Xincun Community, Xincun Community Health Service Station and Xincun Hospital, as well as three other medical institutions around the community, since July 1, and interviewed relevant persons in charge and doctors.

Zhang Lin and Yang Le conducted a household survey of the Jiangcun residents' group with the highest concentration of cases to understand the incidence of the residents, and re-investigated the Breto index. The incidence was carried out in conjunction with the Breto Index survey to minimize disturbance to the population.

Lin Xiaoxiao and I conducted a household survey of the second group of Jiangcun residents. ”

After the task is assigned, the members of the group should already know it in their hearts.

Yang Le wanted to speak and stopped, he originally thought that with Lin Xiaoxiao's group, with his level, it was okay to bring newcomers to act together, but the leader was willing to take it personally, and he had nothing to say.

After a task was assigned, Lin Xiaoxiao was very excited and immediately stood up, "Do you want to leave now?"

The rest of the emergency response team was stunned.

Right now?

Look at the sky outside, it's all dark!

It's past 9 p.m.

Everyone muttered in their hearts, no wonder Lin Xiaoxiao, such a girl, would be taken by Li Bai and wanted to come to the emergency office, but it turned out to be a desperate San Lang like him.

Yang Le: "It doesn't matter if we don't sleep at night, but going to the residents' homes at night will disturb the people." ”

Li Bai smiled, "This is tomorrow's task, everyone go back to rest now, and gather at the emergency office at 8 o'clock tomorrow morning." ”

A few people sighed, packed their bags and went home.

Li Bai had no intention of leaving at all, but turned on the computer, not knowing what information he was looking for.

"Team Li, aren't you going home?" asked Lin Xiaoxiao.

"I'll check the information first and send it to the laboratory department, and I'll go back in a while, what about you? Do you want to take the bus back? If you don't mind, you wait for me for a while, and I'll drive you back." ”

Lin Xiaoxiao wanted to know what information Li Bai was checking, this information must be very urgent and related to the epidemic, so he agreed with a smile, "Okay, I want to rub the car." ”

Li Bai looked for information, and Lin Xiaoxiao approached his computer screen step by step, wanting to see what was going on.

"Want to help?" asked Li Bai with a smile.

"Well, what are you busy with? can I help in any way?" Lin Xiaoxiao looked expectantly.

"I'm compiling a list of all the diseases that can cause fever and are related to mosquito transmission, as well as the methods used to do the tests, and then send them to the laboratory department for screening. ”

Lin Xiaoxiao looked at the list that Li Bai had compiled, and found that many of them were diseases that had not been found in China or that there were no local cases in China, but only imported cases that had appeared sporadically.

"These pathogens are not common, will our CDC laboratory have a stockpile of testing reagents?" Lin Xiaoxiao asked worriedly.

Li Bai smiled mysteriously, "You underestimate the strength of our Yunhai City Center for Disease Control and Prevention, we have testing reserves for many diseases that you haven't heard of." ”

"Oh, really, better than the hospital's testing capacity?"

"At least in terms of infectious disease testing, the CDC is the strongest of all medical institutions in the country, which is also due to the function of the institution. ”

Lin Xiaoxiao felt that what Li Bai said made sense, and the CDC was originally engaged in disease surveillance, especially various infectious diseases.

"Oh, and I suddenly feel quite proud to be working at the CDC. Team Lee, what am I doing now?"

"Help me check the list, especially the detection methods for each pathogen. ”

Lin Xiaoxiao felt that the task arranged by Li Bai was just for her to study, but in fact, she didn't help in any way.

But after thinking about it, she has just entered the CDC and has no experience, so it is already good to have a learning opportunity.

Soon, Li Bai sorted out all the information and sent an email to the person in charge of the laboratory department.

In the meantime, call and discuss.

Hanging up the phone, Li Bai seemed to be relieved.

"Tiny, let's go home. ”

Li Bai said it very naturally.

Lin Xiaoxiao found that this was the first time that Li Bai only called her by her first name, but not by her last name.

She was not disgusted, but had a hint of warmth.

"Oh, right away. ”

Lin Xiaoxiao carried the bag and silently followed.

——

Day 2.

Everyone in the emergency response team worked separately.

Some went to medical institutions to search according to the new case definition.

Some go to residents' homes to conduct household surveys and Breto index surveys.

Midday.

The CDC called Li Bai.

They conducted the test based on the information provided by Li Bai last night, and the results have already been obtained.

Chikungunya virus nucleic acid was detected in samples from several febrile patients previously sent for testing.

The causative agent of the unexplained fever epidemic in Wan'an Street was found to be chikungunya virus.

After listening to the result report, Li Bai frowned.

Chikungunya virus, a virus transmitted by mosquito bites, has not been detected in China before.

This is the first time that the community has been infected with chikungunya fever en masse.

There are several big events about the history of the spread of this virus.

In 2007, a homegrown outbreak in northeastern Italy, caused by imported cases from India, lasted 98 days, with a care rate of 782,810.

There was also a community outbreak caused by imported cases in French Reunion Island, during 2005~2007, there were at least 244,000 people, the incidence of the population exchange rate was as high as 35%, and the mortality rate was 0.3‰.

These two historical events indicate that the discovery of the chikungunya virus outbreak in the community in Yunhai City is a very difficult matter, and if not handled properly, it will cause very serious consequences.

The current situation of the epidemic has only been handled by a single department of the CDC, which is not at all feasible and requires joint prevention and control.

Li Bai immediately reported the results and the progress of the on-site investigation to Director Yang of the center.

When Director Yang reported the situation to his superiors, Li Bai had already begun to mobilize the entire CDC and the CDC of all counties and districts to start large-scale sanitation and cleaning activities in the jurisdiction, especially to eliminate mosquito breeding sites and carry out drug control of mosquitoes.

At the same time, Li Bai began to formulate emergency monitoring tasks.

The entire Yunhai City is divided into three areas to carry out emergency monitoring.

The core area, Wan'an Street New Village Community.

In the warning area, there are 27 other communities in Wan'an Street except for the Xincun community.

Monitoring area, other towns or streets in Yunhai City except Wan'an Street.