Source:
http://www.bjd.com.cn/a/202002/03/WS5e375d4de4b002ffe9940693.html
The "mystery" of the 5 cases of Bao Bao in Tianjin was solved, these warnings must be kept in mind
Time: 3 February 2020 Source: Tsukumo micro-channel public Author: Editor: Li Tuo
Recently, new coronavirus-infected pneumonia cases have appeared in a department store building in Baodi District, Tianjin (the 34th, 36th, 37th, 43rd, and 48th cases of cumulative diagnosis in the city), and they have gathered together again. epidemic. Judging from the onset of the first three cases, it does not seem to find any epidemiological relevance. How did these cases develop? What conditions can be traced before the onset? How exactly can I find the answer?
At a press conference on the prevention and control of pneumonia in a new type of coronavirus infection in Tianjin held at 16:00 on February 2, Zhang Ying, director of the Tianjin Centers for Disease Control and Prevention of Infectious Diseases, confirmed the diagnosis of 5 cases in a department store in Baodi District.
The onset of the cases has been analyzed in detail, and the layers of fog have finally been revealed.
Case 1
The first case in a department store in Baodi District was a salesperson in the small home appliances area of the building. The salesperson became hot on January 22, and the mall was closed on the 26th during the Spring Festival. The sales clerk went to the community clinic for 4 consecutive days after the onset of illness. There was no hot clinic in this community clinic. During that time, she continued to have a high fever and bought medicines for treatment at home. Until the 30th, the case was not cured, so on the 31st, accompanied by her husband, she went to a fever clinic in Baodi District Hospital. It was finally confirmed as a confirmed case by Tianjin Centers for Disease Control and Prevention.
The key problem is that, through the epidemiological investigation, the case is without any epidemiological history in Wuhan, has not been out, and has not been exposed to similar confirmed cases or cases with suspicious symptoms.
Case 2
"On February 1st, we received a second confirmed case. This case is the husband of the first case. After the first case became ill, he has been accompanying his wife to the community health service center and the district hospital for treatment. During this period, he also developed symptoms himself. "Zhang Ying said," As early as January 24, the second case had symptoms of diarrhea. During the whole process of accompanying his wife to the doctor, he just went to the small drug store at his doorstep. He bought some medicine to eat, and although he had been with his wife to see a doctor, he did not go to the hospital himself. "
According to the epidemiological investigation, the second case also had no travel history in Wuhan and travel history of other epidemic sources. Apart from contacting his wife, a feverish patient, he has not been exposed to other cases of suspicious symptoms. So the source of the infection attracted the attention of experts from the city's disease control center. How did the couple get infected? At that time, experts speculated that it might be because his wife was selling small appliances in department stores, or it was bringing the new coronavirus to the family in the customer crowd. However, just after that, a third case appeared.
Case 3
The third case was a sales clerk from a department store. She is a jewellery clerk, working with the first case on one floor, but not in a sales area. The first case and the third case usually did not have any connection or intersection, nor did they eat or chat together. The third case had symptoms only on January 24. During the epidemiological investigation, experts found that the third case was purchased on January 18 and contacted a high fever patient.
Zhang Ying said: "There are also cases in the place of purchase, which is the source of the epidemic. However, this high fever patient in the field has not been clinically diagnosed and has not been confirmed by the laboratory. In the end, the third case of high fever patients exposed in the field is not a new coronavirus-infected pneumonia. The patient could not be confirmed. Because the high fever patient was not seen and was not tested. The source of infection in the third case can only be marked with a question mark. "
At that time, disease control experts analyzed whether the third case was infected with the new coronavirus and brought back to Tianjin, causing the transmission in the department store and then the family's first case. From the time of onset, experts cannot establish an epidemiological connection. why? The third case developed on the 24th, and the first case occurred on the 22nd. If the third case is transmitted to the first case, it does not make sense logically.
In this way, the experts were completely led into the mystery. While the disease control experts were at a loss, a fourth case appeared.
Case 4
The fourth example is also a salesperson in a department store. She works in the shoe sales area, on the same floor as the first and third cases. According to the 4th self-report, she did not have any job intersection with the two salesmen who had the previous illness.
At this point, the disease control experts were afraid of missing key clues, and found the department store leader to ask. Whether the department store held a gala, small party, wrap-up party before the Spring Festival, or brought employees together by other means. To the disappointment of experts, the answer is: no. Moreover, the salespersons go to eat by themselves, there is no cafeteria to provide a group dining environment. So these three salespeople have no intersection in their daily work.
However, there was another situation in the fourth case that caught the attention of experts. The case developed as early as January 21. From January 12th to 13th before the onset, she went to the footwear wholesale market in L City near Tianjin twice to purchase goods.
Experts searched the Internet from the national epidemic reports and found that there were cases of pneumonitis infected by the new type of coronavirus in L city and local transmission. Experts judge that it is possible that the fourth case was infected during the purchase process in City L and then returned to Tianjin. But how did she spread the virus to two other colleagues who did not interact with her every day? There is also no way to establish an epidemiological link.
Will the experts fall into the mist again this time?
The disease control experts repeatedly confirmed with the first, third, and fourth patients: "Have you ever noticed each other for a moment?" Even the experts using public toilets did not miss it. But the answer is: no.
This time, experts have reached an impasse in the epidemiological investigation of department stores.
Just as the experts were at a loss, a very crucial figure appeared. In the early hours of February 2, the fifth case was diagnosed.
Case 5
The fifth case was not a sales clerk in a department store. She was a customer who used to shop in the department store. From 15 pm to 18 pm on January 23, she went to the shoe sales area of the department store (the area where the fourth case is located) and the jewelry area (the area where the third case was located) for shopping. Then she spent more than 3 hours in the department store. Fever symptoms appeared on the 29th. A pneumonia case was confirmed on February 1 as a novel coronavirus infection.
This customer did not have any travel history or travel history in Wuhan and other epidemic sources, and had no contact with suspicious or diagnosed cases. Experts judge that her infection can only come from a department store.
Finding clues, the disease control expert in turn asked the 3rd and 4th confirmed patients, whether they were on the job from 15 to 18 pm on January 23. The answer is: they are all there.
At this point, disease control experts have finally established epidemiological links. The conclusion is: the fourth case was infected in a field and became ill after returning to Tianjin, causing the virus to spread in the department store. The customer caught up and she became infected. Then came the first case that infected her husband.
Zhang Ying further analyzed: "Although the first, third, and fourth cases of salespeople working in different areas, but the sales areas are on the same floor, they are basically adjacent, there is no clear boundary, and there is no more than 4 to 5 meters. Distance, the actual interval is even less than 1 meter. In such an environment, a customer is infected after 3 hours. We can imagine that an 8-hour salesperson cannot avoid being infected in such an environment. . "
At this point, the ins and outs of the cluster epidemic in a department store in Baodi District are completely clear.
Ye family's infection worth alerting
At the scene, Zhang Ying analyzed the infection process of 39, 40, and 41 confirmed cases in the city. "The situation of a family of three in Yemou is relatively simple, but it also serves as a warning. They are from Wenzhou. They live and work in Tianjin. They return to their hometown in Wenzhou on January 20 to visit relatives. Between 20 and 25, they attended 3 meetings: The first dinner was on the 21st, Tang Moumou participated; on the 23rd, Tang Moumou and Ye Moumou's mother participated together; on the 24th, Ye Moumou had a dinner at the mother-in-law's house. On the 30th, Tang Moumou was diagnosed as a new type by Wenzhou. Coronavirus-infected pneumonia cases. On the 31st, Ye Moumou's mother was tested positive and was also diagnosed. On February 1, all three of Ye's family were diagnosed with new coronavirus-infected pneumonia cases. They were all eating together. Blamed. "
Through the analysis of these cases, Zhang Yingyu earnestly reminded the people of the city that the prevention and control of the new coronavirus really cannot be taken lightly.
"Every time we talk to everyone about what to do and how to prevent it. I want to remind everyone that you should protect yourself and protect yourself. You don't know who infectious diseases are transmitted by the respiratory tract. Carry the virus. You don't know who is infected around you. So it's impossible to know who is the pneumonia case of the new coronavirus infection. "
So what do you do to protect yourself?
Don't get together with friends and family. Zhang Ying said, "First of all, do n’t get together with friends and family. After a busy year, everyone should take advantage of this holiday to take a good rest at home. Protect yourself, our cases will be less and less, and the possibility of transmission will be blocked. Very When the epidemic is under control, everyone can resume work and school smoothly and earlier. If everyone runs around, we have no way to prevent and control it! "
Do not go in public places. Zhang Ying said: "Everyone knows the example of a department store. The customer stayed there for 3 hours. Such a relatively closed area where people are concentrated is a place where infectious diseases of the respiratory tract are particularly easy to spread. It is impossible to prevent. Coupled with our inadequate protection, try not to go to public places like this. Do n’t go if you ca n’t. "
Don't give yourself medicine. Zhang Ying said, "The first four cases of the five cases that appeared in a department store in Baodi District did not go to the clinic immediately. They all bought medicines and took them by themselves in the pharmacy. They did not go until the condition was uncontrollable. Hospital. Once again remind everyone not to take medicine at home, otherwise it will bring many side effects.
Remember to get a fever clinic. Zhang Ying said: "The common problem of the first four cases in a department store in Baodi District is that after the symptoms of fever, the first choice is a community clinic, not a hot clinic. This is very dangerous. Once again, I would like to remind everyone that I myself Or if your family has a fever, you should go to the 47 public health clinics announced by the Tianjin Municipal Health and Health Committee to see a doctor. In which district you live, go to the nearest clinic. "
