Xiaoxian looked tired, "I don't know if it's food poisoning, I suddenly felt a little nauseous this afternoon, and there were a lot of blisters on my body, and the doctor said it was hives." ”

"Hives? is that allergies?" Qianqian also had some medical knowledge, and when she heard that it was hives, she immediately suspected that it was a food allergy.

Xiaoxian scratched the blisters on her body with her hand, and said in distress: "I have never been allergic to food, why did I become allergic when I came to Beijing?"

"Is it because the weather is too dry?" Qianqian felt that Xiaoxian had just come from the south and couldn't adapt to the dry climate in the north for a while, maybe she was allergic to the weather, just like many people are allergic to pollen, and some people are allergic to the dry climate.

Xiaoxian pointed to her arms and calves, "My arms and legs were a little itchy before I came to Beijing, and it shouldn't be because of the climate." ”

As soon as Zhang Xiaobin heard that his little sister had symptoms before she came to Beijing, he hurriedly asked: "Xiaoxian, when did this happen? Why didn't you tell me?"

"It's not a big deal, it's just a little itchy, so I didn't say it. ”

"Then I should have told the doctor just now, every symptom and medical history should not be missed, I will go and tell the doctor about this situation. ”

Zhang Xiaobin was about to get up to find a doctor, Xiaoxian suddenly covered her stomach and shouted: "Brother, my stomach hurts, I want to go to the toilet." ”

Xiaoxian is now hanging a hanging needle, and because she vomited all afternoon, her body is dehydrated and weak, and she must be followed when she goes to the toilet, although Zhang Xiaobin is Xiaoxian's brother, but there is a difference between men and women, Ye Zhenzhen and her cousin Qianqian took the initiative to accompany Xiaoxian to the toilet.

Xiaoxian entered the separate bathroom in the ward, and within a minute, she heard a frightened shout from inside, "Come on, find a doctor." ”

Zhang Xiaobin didn't care about anything else, and broke into the bathroom, only to see his sister Xiaoxian being half-held in Ye Zhenzhen's arms, and there was blood everywhere around the toilet, and the smell of blood was accompanied by a fishy smell.

"What's going on?"

"Xiaoxian had bloody diarrhea, bleeding a lot, and when she was about to stand up after untying her hands, she suddenly collapsed and couldn't speak. ”

Zhang Xiaobin picked up his sister horizontally, carried her out of the bathroom, and put her on the hospital bed.

Ye Zhenzhen followed behind, holding the hanging bottle and hanging it on the bedside shelf, and at the same time pressed the panic button at the bedside.

The doctors quickly rushed to the ward, and after an urgent examination, the attending doctor frowned and said, "It's a typical meningeal irritation." ”

"Meningeal irritation? How can this be, is it because of an infection?" Zhang Xiaobin asked worriedly.

"Not necessarily, we have to take a sample of cerebrospinal fluid for testing. ”

The doctor quickly drew Xiaoxian's cerebrospinal fluid and sent it to the hospital laboratory department, and it will take some time for the results to come out.

I thought it was just simple food poisoning, but I didn't expect the sudden aggravation of the condition, blood in the stool plus meningeal irritation, and urticaria that had already appeared all over the body, which looked like there was a severe inflammation and allergic reaction in the body.

While waiting for the test results, the doctor treated Xiaoxian symptomatically, supplementing electrolytes to relieve the dehydration caused by vomiting and diarrhea.

The laboratory department of the hospital did a series of tests on cerebrospinal fluid, including routine, biochemical, cytology, immunoglobulin and enzymatic tests, as well as tuberculosis-specific antibody and cyst tests, all of which were negative.

Except for the detection of severe allergic reactions in the body, there is nothing abnormal, and the allergen of the allergic reaction is also unknown.

The doctor ordered a CT and MRI scan of the brain, which showed slight cerebral edema.

Various tests have been done, but the cause has not been found.

Ye and Zhang discussed the causes, vomiting, bloody stools, meningeal irritation, and many diseases related to these symptoms, such as malaria, typhoid fever, paratyphoid fever, liver abscess, sepsis, tuberculosis, and leptospira......

The doctor investigated the inferences of the two one by one, but the cause was still not found.

was busy until the middle of the night, and Nan Zhiqiao suddenly called Zhen Zhen.

The call at ten o'clock in the evening is a call that Nan Zhiqiao will definitely call every day.

At this point in time, it is the time when Ye Zhenzhen is ready to go to bed, and the two will have a brief chat on the phone, sometimes they will talk about the busy things of the day, sometimes it is just a "good night", today Nan Zhiqiao called, but found that the person was in the hospital.

Ye Zhenzhen said the situation in the hospital, and Nan Zhiqiao quickly drove over.

Zhang Xiaobin admired his mentor very much, as soon as Nan Zhiqiao arrived at the hospital, Zhang Xiaobin told his sister Xiaoxian's situation from beginning to end, and finally added his own judgment, Zhang Xiaobin suspected that his sister was infected by some kind of virus, and wanted to take his sister's blood and cerebrospinal fluid samples back to the CDC central laboratory for screening.

Nan Zhiqiao did not object, but added, "Urine and fecal specimens are also brought." ”

After Xiaoxian's specimens were collected, Zhang Xiaobin carried the sampling box and prepared to go to the laboratory, worrying about his sister before leaving.

Ye Zhenzhen saw it in her eyes, took the sampling box from Zhang Xiaobin's hand, and said, "Xiaobin, you stay and take care of Xiaoxian, I will go to the laboratory to do experiments, and when the results are available, I will call you to tell you." ”

Zhang Xiaobin was delighted, with the help of Teacher Xiaoye, the results will definitely come out soon.

Qianqian saw that her cousin was going to the laboratory, and she had always wanted to go to the place where her cousin worked, so she couldn't help but shout to go with her.

Ye Zhenzhen naturally disagreed, Qianqian had not been vaccinated, and she did not have basic biosafety knowledge, so it was dangerous to go to the laboratory.

Qianqian thought that she would be scared when she went back alone, and wanted to follow, but Ye Zhenzhen really had no choice, and planned to call back Kexin, who was still dating outside.

Nan Zhiqiao suddenly spoke, "Let's go together, Qianqian stays in the office, just don't go into the laboratory." ”

Nan Zhiqiao wanted to go back to the laboratory to do experiments in person, and this time with the help of Teacher Nan and Teacher Xiaoye at the same time, Zhang Xiaobin was more relieved.

——

The three of them returned to Nan Zhiqiao's laboratory at the CDC in China, first settled Qianqian in the office, and Nan Zhiqiao and Ye Zhenzhen immediately changed into lab clothes and entered the experimental area.

The two divided labor, Ye Zhenzhen screened each sample for the virus according to Nan Zhiqiao's arrangement, and the method used was the fastest PCR method, and Nan Zhiqiao was responsible for the most primitive microscopic examination of various specimens.

Ye Zhenzhen took the specimen to the P2 laboratory, and before the nucleic acid was finished, she was stopped by Nan Zhiqiao.

Nan Zhiqiao used the laboratory's internal phone to inform Ye Zhenzhen, who was still in the P2 area, that he had found the pathogen.

From entering the laboratory to now, it has only been ten minutes, and Nan Zhiqiao has found the pathogen!

Ye Zhenzhen walked out of the P2 laboratory area full of confusion and saw Nan Zhiqiao sitting in a rotating high chair in front of the microscope, observing the situation of the slide specimen through the eyepiece of the microscope.

Waiting for Ye Zhenzhen to walk in, Nan Zhiqiao stood up and gave up his position in front of the microscope, "Zhenzhen, come and see, what is in your field of vision?"

Sitting on the high chair and approaching the eyepiece, Ye Zhenzhen saw that in the magnified microscope field of view, several pale yellow oval dots were gathered together.

"Parasite eggs!"