On weekend nights, the laboratory building of the China CDC is still brightly lit, and the Nanzhiqiao experimental team is on the east side of the first floor of the laboratory building. Pen, fun, pavilion www. biquge。 info

The graduate students in the experimental group are often busy until almost 10 o'clock in the evening, because this time point is the last shuttle bus from the center to the graduate student apartment, and many graduate students finish the experiment at 10 o'clock in the evening and then take the last shuttle bus back.

Zhang Xiaolong, a young graduate student in Nan Zhiqiao's experimental group, completed the experiment arranged by Nan Zhiqiao at 9:50, and was about to go back.

"Well, I'm going to make these hantavirus evolutionary trees tonight, so you guys can go back first. ”

Zhang Xiaolong and another female graduate student in the laboratory glanced at each other, and one of them, a female graduate student named Zhang Wen, asked, "Teacher Xiaoye, are you going to live in the laboratory tonight?"

"Hmm. ”

Zhang Wen asked with concern: "Is it the first time you live in the laboratory, are you ready to bed? ”

The students in the experimental group often work overtime to stay overnight, so each of them prepared a set of bedding in the office, and there were folding beds in the large conference room under the conference table.

Facing Zhang Wen's concern, Ye Zhenzhen smiled and thanked: "Thank you, but no need, I'm ready myself." ”

Zhang Wen glanced at Nan Zhiqiao's office again, and said: "Teacher Nan usually works overtime, especially when there is an outbreak of the epidemic, at this point in time, it must be at the scene of the epidemic, if the scene is fine, I will come to the laboratory, Mr. Ye, or I will help you." ”

"No, you guys go back early and rest, and I'll just be the one who makes the evolution tree. ”

Ye Zhenzhen urged the two of them to leave, and no matter how verbose they were, they couldn't catch the last shuttle.

The students of the experimental group have left, and most of the lights in the entire experimental building have been turned off, leaving only Nan Zhiqiao's experimental group on the first floor, and two laboratories on the fifth and sixth floors.

——

The clock struck twelve o'clock in the middle of the night, and Ye Zhenzhen sat in front of the computer, staring at the hantavirus sequence analysis evolutionary tree that had just been calculated on the screen, and suddenly, a mobile phone rang suddenly.

Hearing the bell, Ye Zhenzhen was startled, and when she looked at the caller ID, it was Sister Jiang's phone number, and when she connected the phone, Sister Jiang's deep and hoarse voice came from the opposite side: "Zhenzhen, JS Hospital just gave An An a death notice, because An An's body is infectious, the hospital recommends cremation immediately, and I have signed it." ”

"Death notice?

Ye Zhenzhen stood up from the computer chair suddenly, only to feel a bang in her head, An An's shadow kept hovering in her mind, she was still with An An in the morning, and now she is dead?

Sister Jiang on the other side of the mobile phone explained: "After you left in the afternoon, the hospital issued two critical illness notices in a row, and the doctor tried his best to save it, but An An was too young, and what DIC was caused after being infected with hemorrhagic fever, the doctor said that the fatality rate of DIC was about 80%, and An An was destroyed because of AIDS, and a slight infection would be fatal, and An An finally died of multi-organ failure......

Speaking of this, Sister Jiang was already choked up and speechless, and Ye Zhenzhen on the other side of the phone was also stunned and didn't say a word.

Sister Jiang choked up twice, and then said, "Zhen Zhen, I still have An An's future to deal with here, hang up first." ”

Sister Jiang hung up the phone, and there was a busy sound of "doodoo ......" from the mobile phone, and when she came back to her senses, Ye Zhenzhen only felt that the feeling of heartache spread throughout her body, and her hands began to tremble, and the mobile phone was unstable in her grip, and she slipped from her hand in an instant.

A figure suddenly flashed over, and one leaned over to catch the phone that was about to hit the ground.

Feeling the breath beside her, Ye Zhenzhen looked back and saw that Nan Zhiqiao was holding the mobile phone she had caught and looked at it suspiciously.

Seeing Nan Zhiqiao, Ye Zhenzhen's tears poured out of her eyes like a flood that burst the embankment.

Seeing Ye Zhenzhen's sad appearance with rain, Nan Zhiqiao was a little flustered and hurriedly asked, "Zhenzhen, what happened?"

"An An...... An An, dead. Ye Zhenzhen said in a choked voice.

Nan Zhiqiao stretched out his hand to wrap his hand around Ye Zhenzhen's shoulder, and comforted her in a soft tone: "Birth, old age, sickness and death are something that everyone has to experience, and there are some things that we can't change, so we can only accept them." ”

Ye Zhenzhen's head rested on Nan Zhiqiao's shoulder, sobbing sadly, "If I could have found the source of infection earlier, if I had gone to the child welfare center to visit him earlier, An An might not have died." ”

Nan Zhiqiao gently patted Ye Zhenzhen's shoulder with his hand, "It's not your fault, if you really want to investigate the culprit, it's also the 'pet home'." ”

Ye Zhenzhen raised her head, although her eyes were full of tears, she still asked curiously, "Why is it a 'pet house'?"

Nan Zhiqiao did not answer directly, but looked at the hantavirus sequence evolution tree on the computer screen and asked, "Have you made the sequence analysis of each hantavirus, what have you found?"

Ye Zhenzhen shifted her attention to the computer screen, stopped her tears, and explained: "The virus isolated from the two squirrels this time has 100% homology with the hantavirus isolated from An An and Grandpa Sun. ”

Nan Zhiqiao continued: "The mountainous area near H City is the natural foci of epidemic hemorrhagic fever that has been discovered in China in the 80s, and this epidemic is because there are hunters who catch wild squirrels in the mountainous area of H City, and then sell the squirrels to various urban areas, among which squirrels carrying hantavirus are sold to the pet market in our city, of which the 'pet home' is one of the largest trading markets, and the grandpa grandpa of the nursing home just went that day." The pet home's 'bought a squirrel with the virus, and after being bitten by the squirrel, he contracted the disease, because the child welfare center and the nursing home share an animal house, and the children who came into contact with the poisonous squirrel also developed symptoms. ”

What Nan Zhiqiao said was basically the same as Ye Zhenzhen originally imagined, but in more detail, Ye Zhenzhen asked: "Senior Nan, how do you know so much detail?"

"In the afternoon, I asked the owner of the pet store in the hospital, and he told the source of the purchase of pets in detail, and the owner of the pet store kept shouting that he did not know that the squirrel was caught from the natural source of hemorrhagic fever, and that he did not quarantine all the pets in order to save money, so there was an accident. ”