Will the autumn/winter outbreak make a comeback? How long will it last? Expert answers

, Beijing re-emerged 56 days later with a new outbreak of coronary pneumonia. People in Beijing have a lot of questions about the outbreak. For example, is there an expiration date for nucleic acid detection? Can you safely go to the supermarket, shopping malls? How to judge the source of the new crown virus strain in Beijing, autumn and winter outbreak will make a comeback? How long will the new crown pneumonia outbreak last? In response to these questions, recently in beijing Science and Technology Association sponsored by the Beijing Science and Technology Center hosted by the "Capital Science Lecture Hall" science report, China's Center for Disease Control and Prevention, the chief epidemiology expert Wu Zunyou researchers one by one to answer.This control means that the main mode of transmission, the main popular mode has been cut off. But that does not mean that the prevention and control work has achieved a decisive victory, nor can we relax the prevention and control measures. In fact, this stage should be the most critical time for prevention and control. This is because although the main mode of transmission has been cut off, there are still cases scattered in the districts, and perhaps sporadic cases have not been found. Expanding nucleic acid test screening is the task of identifying cases that have not yet been detected. But in any case, the current stage of prevention and control measures can not be relaxed, we must gritted our teeth, continue to implement strong measures, until the end of the virus transmission chain completely interrupted, no new cases reported.Nucleic acid testing is a very important way to find infected people, if students have done nucleic acid testing, and are negative, it means that students are safe, the school environment is also safe. It would be safe not to go to other high-risk areas after nucleic acid testing. But if you go to high-risk areas, then there will be the possibility of re-infection, follow-up in the case of need, may also need to be tested again, so, after testing as far as possible do not go to high-risk areas.This is a lot of people are very concerned about the problem, to the supermarket to buy these items should not be too much risk, especially in the case of better ventilation conditions. When it comes to the environment inside the supermarket, there is generally no risk if it is not in a humid, watery environment on the ground. Now the whole country also inspects and checks the various markets, this risk should be said to be very low. With the outbreak in Beijing, all over the country to strengthen this category of food testing, testing, from the current test results, has not been found in other supermarket items virus contamination. Therefore, when buying vegetables, fruits and vegetables, including some meat, it should be said that it is also relatively safe, we should not worry too much.Antibiotics have no effect on the prevention and treatment of neo crown pneumonia. No effective special drugs have been found to treat new coronary pneumonia. Antibiotics also don't work for viruses either. Misuse of antibiotics can also lead to resistance to other bacteria, so it is not recommended that antibiotics be used at will.We sequenced the genetic structure of the virus to be able to observe its sequencing. There are always small changes in the replication of a virus, and if it has one or two changes in amino acid sequencing, we can analyze it. The higher the amino acid structure similarity of the strain, the greater the likelihood of the same source. If the popularity is long, one place is different from the other, and you can find it by sequencing.
since January, new coronavirus has been sequencing around the world to see how the virus changes. Overall, the virus has no big mutation, so its infectious, pathogenicity has not changed, but it has a change in amino acids on a piece, which can tell us whether the virus in Beijing is popular in February, March in Wuhan strain, or in other European countries popular strain.
, the strains that are prevalent in Beijing are closer to the strains that are prevalent in European countries, what does it mean? It does not mean that the strain must come from a European country. This is because Europe's control is not strong, so the European epidemic strains quickly spread to the world. As far as China is about, after the control of the domestic epidemic in March, the cases imported from abroad are mainly carried by the strains that are prevalent in Europe, so the outbreak in Beijing may originate in other countries, or it may come from areas where China has imported cases from abroad.Everyone asked whether the new crown pneumonia would come again in autumn and winter, especially in winter and spring. This idea is based on the understanding of respiratory infections, that colds and other respiratory infectious diseases will be prevalent in winter and spring. In fact, the global epidemic of new crown pneumonia is still at its peak, the first wave is not over, now the world every day more than 100,000 new coronavirus infection. In Beijing's case, it's summer now, and if it's not effective, don't wait until autumn, winter and spring, and the outbreak will begin as soon as the measures are relaxed. In the Beijing area, if we do not continue to increase our efforts and eliminate it completely, the outbreak will re-ignite and cause wider spread. So each of us, even in the summer or pay attention to protection, in the closed or bad air circulation, we must insist on wearing a mask.This is a very important issue and we are very concerned about it. Each of us has different expectations, and we all hope that the new crown pneumonia will be as good as SARS and disappear after the past. However, in the past five or six months, the new coronavirus is unlikely to be eliminated in the short term and is likely to coexist with humans for a long time, which is likely to be more harmful than colds and flu. We also hope that the vaccine will come out as soon as possible, so that it can be used in the healthy population vaccination, effectively prevent the new crown pneumonia to bring greater harm to mankind.