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http://www.chinanews.com/sh/2020/01-30/9073796.shtml
China News Network
Interview with authoritative expert Wu Zunyou: When will the inflection point of the epidemic come?
January 30, 2020 21:16 Source: CCTV News Client Participate in Interactive Participation
Exclusive interview with authoritative expert on epidemiology Wu Zunyou: How to protect on the way back? When will the inflection point of the epidemic come?
Pneumonia outbreak of new coronavirus affects people's hearts. First-level responses to major public health emergencies have been initiated in many parts of the country. Holidays are coming to an end, and everyone is returning. What precautions need to be taken on the way? Which counts as contact spread? Is medical alcohol or hand sanitizer useful? When will the inflection point come? How does WHO evaluate China ’s defense control initiatives? ...
记者 A reporter from CCTV, CCTV, had an exclusive interview with Wu Zunyou, chief expert of epidemiology at the Chinese Center for Disease Control and Prevention.
怎样 How to protect on the way back?
CCTV reporter: With the end of the holiday, everyone is also returning. What difficulties will we face for our prevention and control?
尊 Wu Zunyou: The flow of people's meetings increases the difficulty of prevention and control. For the current situation, on the way back, we must pay attention to the sealed transportation, such as airplanes, high-speed rail, and long-distance buses. We must protect and wear masks. After returning home, it is very important to keep the home ventilated and wash your hands frequently when returning home.
CCTV reporter: What kind of attention should be paid to wearing a mask? What kind of mask do you wear?
Wu Zunyou, Chief Expert of Epidemiology, Chinese Center for Disease Control and Prevention
Wu Zunyou, Chief Expert of Epidemiology, Chinese Center for Disease Control and Prevention
Wu Zunyou: Wearing a mask is mainly a physical isolation. For infected people, he passed pathogenic microorganisms into the air during sneezing, so that other people may be infected while breathing; for healthy people, people who are not infected, mainly prevent during the breathing process Inhale pathogenic microorganisms in the air and cause infection. For masks, as long as the nose and mouth can be covered, then the air we suck in can be protected by filtering.
My family is together. Would you like to wear a mask?
CCTV reporter: When we get home, the family is together. Do we also need to wear masks?
Wu Zunyou: This should be said to be unnecessary. If we do not go to the epidemic area, and no one has contact with any suspected cases, maintaining ventilation and air circulation in the home is a particularly important protection measure.
CCTV reporter: After returning home from a foreign country, should this family disinfection be done often?
尊 Wu Zunyou: For the prevention and control of pneumonitis infected by the new coronavirus, if there is no patient at home, regular disinfection is not necessary. It is still necessary for you to clean frequently. It is possible to do some disinfection for a certain period of time.
How to prevent contact transmission?
CCTV reporter: In the fourth edition of the pneumonia diagnosis and treatment plan for new coronavirus infection, it was mentioned that the virus can be transmitted through contact. What does contact transmission represent?
Wu Zunyou: When our hand shakes hands with the patient or touches other places, we have not had time to wash our hands. We rub our eyes and wipe our noses. The pollution and the spread caused by contact is called contact spread, not hand touch or clothes touch Caused by contact.
Is alcohol, hand soap useful?
CCTV reporter: The new type of coronavirus infects pneumonia. Does its virus have a temperature requirement for survival? Does alcohol or spray work?
Wu Zunyou: For the virus itself, its ability to survive outside is not particularly strong, because it is adsorbed on certain particles during breathing or sneezing. For temperature, it is more than 50 degrees Celsius and 60 degrees Celsius. Generally, it will be killed in 30 minutes. For common disinfection, such as medical alcohol, jelly-like hand sanitizer, which can be used now, can play a good role in disinfection.
When does the inflection point arrive?
Wu Zunyou: The daily fluctuation of the number of reported cases is temporary, but it is actually better than increasing such an indication, but it is not yet possible to judge the inflection point, and it will take several days of trend data to do research and judgment. It should be said that the measures we have taken now against pneumonitis infected by the new coronavirus are the most powerful control measures. Such a control measure needs to be effective. It takes time to observe, so now we are collecting data and analyzing the data every day. If we want to judge the trend for a longer period of time, we will wait for more data analysis before we do the research. . Judging from the current measures, in the next few days, we will have a more confident judgment of the trend results.
难 Where is the difficulty in prevention and control?
CCTV reporter: Some reports also mentioned that some patients did not have obvious fever, which difficulties did this cause for the prevention and control of the epidemic?
尊 Wu Zunyou: It is true that the prevention of pneumonia caused by the new coronavirus is more difficult than the SARS we experienced. The main difficulty is that the patient's symptoms are not as severe as SARS, that is to say, there are some patients with mild symptoms. He is also contagious, making healthy people underestimate this risk during contact with him, so prevent Weak consciousness often makes it difficult for us to prevent and control the infection when we are not aware of the spread when the source of infection comes into contact with healthy people.
会 Will people with asymptomatic infection become a source of infection?
CCTV reporter: There are some patients who have no symptoms, but they were positive when they were tested for nucleic acid. In the process, have they become the source of infection?
尊 Wu Zunyou: At present we have no scientific evidence to explain. For those who are asymptomatic, whether the virus they carry is infectious or not, we are conducting related research in these areas, and hope to come up with such a research result soon, which is also a very important issue in our prevention and control.
It depends on two aspects. One is the amount of virus entering our body. The less the amount of virus entering, the less chance of causing disease. The other is that it depends on our body's immunity, so for each of us, strengthening exercise and improving immunity is still very important. For the carrier of the pathogen, after being carried for a period of time, it is gradually cleared by the body's immune function, and he returns to a healthy person.
What is the effect of the three-day extension of the Spring Festival holiday?
CCTV reporter: The Spring Festival holiday has been extended for a few days (three days), but the incubation period of the new coronavirus is up to 14 days. What role do you think these three days will play? Are these three days enough?
尊 Wu Zunyou: (holiday) extended for three days to reduce interpersonal communication, which will further reduce the spread of transmission, and is active in controlling the epidemic. For respiratory infectious diseases, no country can take such strong measures against respiratory infectious diseases. This measure should be the most effective measure to control respiratory infectious diseases at present.
When will the epidemic be brought under control?
CCTV reporter: The onset of respiratory infectious diseases in winter is already a peak period, so when the weather gradually warms up and the spring is blooming, it is possible that the epidemic situation will change with the change of weather.
Wu Zunyou: Respiratory infectious diseases are generally high in winter and spring, which is a natural process. We have now taken strong measures to interrupt such a law of natural transmission and epidemic, so that we can hope to control the epidemic before the spring blooms. For the response to pneumonia caused by a new type of coronavirus this time, from the grasp of the epidemic situation and the speed of response, and the implementation of prevention and control measures, it should be said that it is scientific and orderly.
如何 How does WHO evaluate China ’s defense control initiatives?
CCTV reporter: On the international front, how does the WHO evaluate an epidemic situation like China? What further cooperation will we have in the future?
尊 Wu Zunyou: From what I know, the Director-General of the World Health Organization and experts of the World Health Organization have given positive and highly positive comments on the (prevention and control) measures of China's new coronavirus infection pneumonia. Officials of the World Health Organization are also communicating and consulting with China, how can they better cooperate with China. China also communicates with neighboring countries, hoping to reduce the incidence of new coronavirus infections in other countries through cooperation.
CCTV reporter: What kind of cooperation has been adopted?
尊 Wu Zunyou: The first is the sharing of some information, including our knowledge of this new type of coronavirus pneumonia. For example, the virus is isolated and what the virus looks like. These things will soon be shared with the international community. What are its main clinical symptoms? How does it spread? How to control? These are important scientific information for prevention and control. Sharing this scientific information with the international community will help neighboring countries take effective measures to prevent the spread of the epidemic.
[Edit: Yu Xiao]
