Yu Fei asked with concern, "How do you feel?" Do you have any symptoms of breathlessness? If so, it may be that you have serious allergies and need to go to the hospital. ”

"Except for the pain, there is no other reaction, no need to go to the hospital, I have ointment, just apply some ointment. ”

Zhang Lin asked: "If the protective clothing is well worn, how can it be bitten by red fire ants?"

"Well, don't mention it, the gap between the ankles is not tightened, and a red fire ant ran in, and I was afraid of being ridiculed by you, so I didn't tell you. You didn't notice anything unusual about me, so I wondered, how did we find out that I was bitten?"

Li Bai smiled slightly, "The symptoms of the disease are divided into many kinds, in addition to the physical, there are other aspects. ”

After Li Bai finished speaking, he got on the shunting train and began to call the garden construction engineering office.

Yang Le didn't understand what Li Bai meant, where did he find out that he had been bitten? After looking around, several other people did not react, and finally he fixed his eyes on Lin Xiaoxiao's face.

Lin Xiaoxiao also smiled slightly, "Other aspects may also include behavior changes." ”

Zhang Lin patted Yang Le's shoulder, "What the boss means is that you are like a monkey bitten by a bug, jumping up and down." ”

Yang Le slapped his backhand, "You were just bitten on the buttocks, I was only bitten on the ankles." ”

A few people got into the car with a fight.

On the way back to the CDC, Li Bai asked the other members of the emergency team to go back to rest, and there was follow-up work to deal with on the second day.

——

7:20 p.m. that day.

Yunhai Center for Disease Control and Prevention, Emergency Office.

There was a light on in the huge office, only Li Bai was alone, and the other members of the emergency team went home to rest.

He was reading the information sent by the Department of Landscaping and Construction.

There was a knock at the door.

Looking up, there was a tall and thin figure standing under the corridor light, Lin Xiaoxiao appeared at the door with a lunch box, and was symbolically knocking on the door with his hand.

"Why are you here?" Li Bai was surprised that Lin Xiaoxiao had gone and returned.

Lin Xiaoxiao put the lunch box on the table, "I know you didn't eat dinner, so I brought it to you." ”

Recently, I have been eating breakfast brought by Lin Xiaoxiao, and now that dinner has even been delivered, Li Bai is very happy, but he feels that it doesn't seem good to accept it for no reason.

"Xiaoxiao, I've been bothering you too much lately, it was just a joke last time, you don't have to ......"

"Director Li, don't think about it, I helped you bring breakfast before to thank you for giving me review materials, and bringing you dinner tonight is completely out of colleague love, and the members of our emergency team have gone home to rest, I found out your temperament and knew that you would definitely work overtime here, so I brought something here." ”

"Do you know my temperament?"

"Of course, everyone in the center knows that Director Li, you are a workaholic. ”

Li Bai smiled dumbly, he didn't expect that he was this image in Lin Xiaoxin, but yes, he often works overtime and often lives in Xinhua Apartment at night, so it is reasonable to have this impression.

It's just that the whole center thinks he's a workaholic, which is a bit exaggerated, and it's reasonable to think about it, he's the director of the emergency office, and he always rushes to the front when there is a public health emergency, and it's normal for everyone to have this impression.

"Oh, thank you for the dinner. ”

Li Bai thanked him, but found that Lin Xiaoxiao's eyes kept glancing at the information on his desk.

Sure enough, she is a very curious girl.

It seems that I want to be involved in the next work.

"This is the information of the Oasis Park and several nearby communities obtained from the garden construction department, I am tracking down the source of the red fire ants, do you have anything else to do at night? If you have time, you can help me check the information." ”

"There is time. Lin Xiaoxiao was very happy, and the purpose of her visit this time was to see the follow-up progress of the red fire ant incident.

Li Bai opened the lunch box for dinner, and Lin Xiaoxiao looked at the information.

When Li Bai finished eating, Lin Xiaoxiao's information was almost the same, and she found some useful clues.

"What did you find?" Li Bai put away the lunch box and asked.

"During the construction of the Oasis Park last year, a large number of turf and seedlings were introduced from Yulin, and I checked the relevant literature and found that Yulin is a red fire ant infested area.

According to the data brought back by Yu Fei and Gao Meng's group, the youth community did lawn trimming last year, and the turf also came from Yulin. ”

Li Bai nodded approvingly, and put the information he had summarized in front of Lin Xiaoxiao, and the speculation of the two was exactly the same.

"Director Li, were you testing me just now?"

"Looking at the information and summarizing the clues by ourselves, this is a necessary quality for our investigators, what method do you think can be used to support our speculation?"

There are exam questions again.

Lin Xiaoxiao didn't show weakness, and searched for what he had learned before in his mind, "Gene sequencing?"

"Yes, gene sequencing, after reading the information here, I will go to the sequencing center of the experimental building to do the gene sequencing of red fire ants in a while, do you want to go?"

This time I came to deliver dinner and had a big harvest, not only found clues to the invasion of red fire ants, but also went to do genetic sequencing.

"Go, I want to go. ”

Center for Disease Control and Prevention, Experimental Complex.

In the sequencing center, Li Bai was processing samples, and Li Xiaoxiao was working on the side to do auxiliary work.

Red fire ants brought back from Oasis Park and youth communities are mashed to extract DNA.

This is followed by hands-on amplification sequencing.

The manual operation process is very simple, much simpler than Lin Xiaoxiao imagined before.

I used to think that gene sequencing work was very advanced, but now it seems that the specific operation is fixed in a few steps.

Li Bai continued the next steps, "Do you think the operation is very simple?"

"Yes, now there are ready-made kits for sequencing, and only by following the kit operation, building the library and getting on the machine, the results will be available quickly. ”

"With the development of technology, the testing process has become very simple, but the complicated part is to do in-depth analysis later. The machine can get a lot of data after a few hours of operation, and we used high-throughput sequencing this time, and the sequence data obtained is even larger and more complex, so we need to find what we need from these sequences, and download the sequences that can be compared from the Internet for phylogenetic analysis, which is the most technical part of the sequencing work. ”

Lin Xiaoxiao followed Li Bai's prompt to download the full mitochondrial sequence in GenBank, and then analyzed it through bioinformatics software using Italian bees as an outgroup.

It's 10 p.m. in the blink of an eye.

Lin Xiaoxiao was still staring at the computer screen to download the sequence, and the biological clock was working, and she couldn't help yawning.

Li Bai glanced at the time, "It's too late, I'll be here today and continue tomorrow." ”

Lin Xiaoxiao rubbed her eyes a little sore, glanced at the time, and unconsciously it was so late.

It's so late, Li Bai shouldn't go back to the old mansion.

"Director Li, are you going back to Xinhua Apartment?"

"Well, let's stop by the way, why don't you rub my car?"

If in the past, Li Bai would have said that I will send you back, but this time he said that he would like to rub my car? The tone was obviously relaxed, it seems that the recent breakfast and dinner were not given in vain, and the relationship between the two has become much closer.