When will Beijing lower the response level? What does it mean to detect viruses in the imported shrimp packaging? Interpretation of Wu Zunyou
As of July 10, Beijing had no reports of newly confirmed local cases for 4 consecutive days. When will Beijing lower its emergency response level? Has the source of this epidemic in Beijing been found? What is the reminder of the detection of new coronavirus in the outer packaging of imported frozen shrimp? Is the unidentified pneumonia in Kazakhstan a new coronary pneumonia? "News 1+1" invited Wu Zunyou, chief expert in epidemiology of the Chinese Center for Disease Control, to respond to the hot issues related to the epidemic.
When will Beijing lower its emergency response level?
Wu Zunyou said that there have been no new confirmed cases in the past four days in Beijing, indicating that the epidemic has been brought under control. When the response level of epidemic prevention and control is adjusted depends on whether there are changes in high-risk areas. At present, there is one high-risk area in Beijing. Only after the high-risk area is downgraded to medium risk, it is possible to adjust the level of response.
Wu Zunyou judged that it is estimated that the high-risk areas may be adjusted to medium-risk in the next week. After the adjustment, the adjustment of the response level may be considered in a short time, which is estimated to be about one week to 10 days.
If there are sporadic cases again, it means that the epidemic rebounded
Will sporadic cases occur in the future? Wu Zunyou believes that this is possible, but individual sporadic cases do not mean that the epidemic has not been controlled or the epidemic has rebounded. Because some close contacts missed in the investigation, or patients with atypical symptoms may appear.
Judging from the current situation of prevention and control in Beijing, even if there are such sporadic cases, they are not particularly meaningful. They are all under prevention and control, and will not pose a threat to society.
Has the source of this epidemic in Beijing been found?
Wu Zunyou said that finding the source of the virus is very difficult. An outbreak occurred in Beijing after 56 days, indicating that the virus must have been brought in from outside. At present, work has been started from two aspects, one is the goods brought to the new market, and the other is people. From a human perspective, a large number of clue investigations and investigations have been done. More and more clues have been excluded, and some new clues are being investigated.
Wu Zunyou said that a supplementary investigation of early cases is currently being implemented. The supplementary survey answers two questions:
Also engaged in business in the Xinfadi market, some people are infected, some people are not infected; some customers are infected, some customers are not infected, the specific reasons are.
Is it the person or the article that brought the virus in See if the clues provided by early-onset practitioners and early customers can provide new ideas, and then carry out investigations.
What does it mean to find new coronavirus in the packaging of imported frozen white shrimp?
Yesterday's State Council Joint Defense Joint Control Press Conference reported that during the importation of products produced by three companies in Ecuador (mainly frozen South American white shrimp), samples of the container environment and the outer packaging of the goods were positive for the new crown virus, and there was a new crown. Risk of virus contamination.
Wu Zunyou said that this news is very important, it reminds two parties-
It is possible for imported seafood to bring the virus into China. Whether such introduction can cause a new outbreak requires further scientific demonstration.
For imported products, especially those from countries with epidemic conditions, especially imported products with frozen packaging and frozen storage at low temperature, inspections should be strengthened, or imports should be banned altogether. These measures can reduce the risk.
Like Beijing's prevention and control is a global role model, thank "Uncle Xicheng"
Wu Zunyou said that Beijing's response provides a very good example for other parts of China and the world. The analysis found that Beijing's response time is almost impossible to shorten. Each link is very compact, with almost no delay. The first time to detect cases, the first time to take measures to prevent the virus from spreading on a larger scale.
The most important thing in the prevention and control of this epidemic is the early patient consultation, which has attracted the attention of the medical system. He said that this should be thanks to the first case of the epidemic, "Uncle Xicheng". If he becomes infected and does not go to the doctor, it will cause proliferation in the family and community. Therefore, the patient's awareness and active reporting are very important.
Is the pneumonia present in Kazakhstan a new coronary pneumonia?
Kazakhstan’s Ministry of Health yesterday denied that the country had “unexplained” pneumonia with a lethality rate higher than that of the new coronavirus, saying that those cases were likely to be cases of the new coronavirus. In this regard, Wu Zunyou agreed: From the perspective of the report statistics and considering the epidemiology, it should be that the possibility of new coronary pneumonia is relatively large.
If it is a new respiratory infectious disease, it is less likely to occur in summer. Even the first occurrence of new coronary pneumonia is in winter. Like the original SARS, it also occurs in winter. There are also influenza and avian influenza.
Judging from the global pandemic of new pneumonia, Kazakhstan itself is also a country heavily affected by the new coronavirus.
Judging from the case fatality rate, it is also within the range of lethal rates of new coronary pneumonia. At the same time, considering the medical capabilities of Kazakhstan, especially the ability to test and detect, this pneumonia is more likely to be new coronary pneumonia.
Has New Corona Virus mutated globally?
Wu Zunyou said that the main structure of the new corona virus has not changed, which is very good news for vaccine research. Although the virus has small amino acid changes every time, these small changes will not change the structure of the virus.
Producer丨Zhe Li