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标签： 上海龙凤千花1314
Regarding the epidemic, Zhong Nanshan has 12 latest judgments.
At present, the situation of epidemic prevention and control in China continues to improve, and foreign epidemics spread rapidly. "External defense input and internal defense rebound" has become the focus of epidemic prevention and control in China. Can I take off my mask now? How contagious are asymptomatic infected people and relapsing patients? Will pets spread viruses? Recently, Zhong Nanshan, an academician of China Academy of Engineering, responded to the hot issues of epidemic prevention and control.
It’s not time to take off the mask yet.
Zhong Nanshan:At present, the situation at home and abroad is very different. China has entered the second stage of the epidemic because of its decisive measures, while other major countries are still in the first stage of the outbreak and are still climbing up. This means that the probability of human-to-human transmission is very high, and the number of confirmed cases increases very quickly.Wearing a mask is still an important means of self-protection, but it is not necessary to wear it in areas where the epidemic situation is not serious, places with few people or open spaces.
Wuhan has passed the customs, but there is still the next pass.
Zhong Nanshan:After the outbreak, the central government took decisive measures to control Wuhan’s urban traffic, and it was very successful to take measures to prevent and treat it in other places. In the history of epidemic prevention and control, this is also a feat. However, there are still two tests: one is how to prevent and control while returning to work, and the other is the "external defense input" barrier.At present, foreign epidemic situation is still at the peak, and some coastal cities in China, which have close communication with foreign countries, are easily "involved", and then some epidemic situations occur.It can be said that the next "pass" of Wuhan is also the "pass" of the whole country, and it needs to pass through various prevention and control measures.
3. It is very unlikely that foreign imports will cause a second outbreak in China.
Zhong Nanshan:There are actually two questions about whether the overseas epidemic will cause a second outbreak of the domestic epidemic: first, whether the imported cases have spread, and second, whether they will break out in the process of spreading. The risk of transmission of imported cases definitely exists, especially cases with positive nucleic acid test or symptoms of infection, which are highly contagious and will cause virus transmission. At present, the mass prevention and control in China has been sinking into the community, and community residents have a strong sense of self-protection, such as wearing masks and keeping a distance from others. Once someone has symptoms such as fever, he can report or accept diagnosis quickly, and then isolate.On the whole, the risk of community transmission certainly exists, but the probability of the second wave of outbreaks in China is very small.
It is too early to talk about the "turning point" of the global epidemic.
Zhong Nanshan:Globally, the original "epicenter" of the epidemic was in Europe, especially Spain and Italy, and now it also includes Germany, France and Britain.The biggest problem at present is the United States. In the past week, the number of confirmed cases in the United States has increased at a rate of 10,000 to 20,000 per day. It is too early to predict when the global epidemic will have an "inflection point".It can be said that whether there can be an "inflection point" mainly depends on whether governments can intervene strongly. There are many unpredictable factors in other countries. According to the current situation, I am afraid it will take another two weeks.
5. The proportion of asymptomatic infected people in China will not be large.
Zhong Nanshan:Asymptomatic infected people do not appear out of thin air, but usually appear in two groups: first, people who have not shown symptoms for the time being but may have been infected in areas with relatively serious epidemics; The other is the close contacts of the confirmed cases, and their proportion is relatively small. Asymptomatic infected people also have two concepts. One is that they have no symptoms at first, but then they will gradually develop into symptoms. Such patients are definitely contagious; The other is that during a long observation, there is no symptom all the time, but the nucleic acid test is positive. We are studying the infectivity of such patients.However, according to the characteristics of Covid-19, once symptoms appear, it is more contagious, so it is correct to isolate asymptomatic infected people for observation.
6. Most patients with relapse are not contagious.
Zhong Nanshan:Generally speaking, most patients with relapse are not contagious. Most of the so-called multiple positives are fragments of nucleic acid, not the virus itself.We need to pay attention to two situations. The first is whether the patient has a relapse. If the patient produces strong antibodies, he will not be infected again. As for whether patients with relapsing yang will be transmitted to others, it needs specific analysis. Generally speaking, nucleic acid fragments are not contagious. Some scholars have cultivated throat swabs and secretions of patients with relapsing yang, but they have not cultivated viruses. The second situation is that patients have many basic diseases, but their symptoms have improved and they have not fully recovered. These patients cannot rule out infectivity.
7. There is not enough evidence of "influenza" in COVID-19.
Zhong Nanshan:At present, there is not enough evidence of COVID-19’s "influenza".Unless there is such a rule in virus transmission: its infectivity is still strong, but the mortality rate is getting lower and lower. In this case, it is possible to exist for a long time. We now need to make long-term observation and master sufficient data and cases before we can draw such a view. Under the present circumstances, I don’t think this prediction will come true.
8. It is too early to draw conclusions about animal-to-animal transmission.
Zhong Nanshan:It remains to be seen whether some animals such as dogs, cats and tigers are positive for nucleic acid detection, which is caused by pollution or infection. Some animals originally carry some viruses, which may not be symptomatic or contagious.It is too early to conclude that Covid-19 in these animals can infect both humans and animals, and both can cause diseases.
9. Some effective drugs have been found, but there is no specific drug yet.
Zhong Nanshan:Some drugs we are testing now (such as chloroquine phosphate) are definitely effective. We are summarizing them and will announce them soon. There are also some Chinese medicines (such as Lianhua Qingwen), which we have not only done in vitro experiments, but also found in P3 laboratory (the third-level laboratory of biosafety protection) that their antiviral effect is not strong, but their anti-inflammatory performance is outstanding, and the relevant experimental results will be published soon. In addition, there is Xuebijing, a traditional Chinese medicine. Its main components include safflower, salvia miltiorrhiza, radix paeoniae rubra, etc. It is used to promote blood circulation and remove blood stasis, but it is also effective in the treatment of severe patients. We are summarizing the situation of these drugs.
10. The vaccine will not be on the market soon, and the vaccination depends on the situation.
Zhong Nanshan:Vaccine is very important to really end the epidemic. Now all countries are developing it at the fastest speed, but I don’t think it can be made in three or four months. In addition, according to the experience of fighting SARS, removing the intermediate host can also block the spread of the epidemic. At present, we are not clear about the transmission chain in Covid-19, and it is also important to cut it off after it is clear.Put all your hopes on the vaccine, and all other methods are negative. Moreover, after the vaccine comes out, it is impossible to be perfect at once. The susceptible population can be vaccinated, but it is not necessary for everyone to be vaccinated.
11. Group immunization is the most negative practice.
Zhong Nanshan:The most negative way to deal with the epidemic is the so-called "group immunity", which was the idea more than 100 years ago.At that time, human beings had no choice but to let the virus infect them, and those who survived the infection naturally got antibodies. I don’t agree to deal with Covid-19 in this way again. In the past 100 years, mankind has made great progress, and there are many ways to prevent it, so there is no need to use natural immunity or group immunity.
12. The most worth sharing experience of the "epidemic" in China War is execution.
Zhong Nanshan:China War "epidemic" mainly took two measures: first, blocked the outbreak area and blocked the spread; The second is grassroots group defense and group governance. Now there are two core points of prevention and control: one is to keep a distance, and the other is to wear a mask.
So,China’s most shareable experience is execution.. The medical level and technical strength of many countries are much higher than that of our country. The reason why we were caught off guard in the face of the epidemic was because we were not prepared mentally and did not take decisive measures, which led to the infection of many front-line medical personnel. Once this line of defense collapses, it is easy to get out of control.
(People’s Daily client)
Oh, my God, baseball rules are universal. What is ＂three strikes＂？
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Zhang Yimei is a member of the Dumbo women’s baseball team. This amateur team is made up of baseball fans from all walks of life. Every Sunday, they will train together and organize intra-team competitions to learn about their skills. Sitting by the court, Zhang Yimei and team coach Xu Yuchen explained the basic rules of baseball to Commissioner Si Wenjia.
Baseball is divided into offensive and defensive sides, each team has 9 people, and the two teams take turns to attack and defend. During the game, the defender is on the court, and the players of the attacker go on stage in turn, hitting the ball thrown by the defender, then running along the four bases, and winning a point after successfully running a lap. Batters need to judge whether the ball thrown by the other side is a good ball or a bad ball before hitting the ball. Above the home plate vertically, the three-dimensional space from the knee to the armpit in the batter’s natural standing posture is called the "strike zone", and the ball thrown by the pitcher through this space is called the "strike" and vice versa. If the pitcher throws three good balls in a row and the batter doesn’t hit them, the batter is out. This is called "strike out". If the pitcher throws four bad balls in a row, the batter is walked to first base. When three players of the attacking side are ruled out, the attacking and defending sides exchange positions.
Zhang Yimei introduced that, generally speaking, the baseball game is divided into upper and lower innings, with a total of nine innings. If the scores of both sides are the same at the end of the ninth inning, the game will continue until the two sides win or lose. This special rule allows baseball games to last for a long time. Coach Xu said that in professional baseball games, there are cases of hitting more than twenty innings. "It’s very tight, and it’s difficult to score a point in baseball games."
For more details, please pay attention to the special program "I have an appointment with summer" on the news comprehensive channel at 22: 30 on September 5, which is wonderful and not to be missed.
(Look at the news Knews reporter: Zhu Zhenbo Editor: Lao Xu)
Finally proud! China Universiade men’s basketball team beat Japan. Chen Lei should have arranged this long ago.
The China Universiade men’s basketball team ushered in a showdown with Japan in the men’s basketball qualifying for the Universiade, which attracted much attention and could not be missed. After the struggle in the first quarter, the men’s basketball team finally found a solution to the problem.In the second half, I didn’t give my opponent any chance, and finally I beat Japan 84-62, and finally I was proud on the stage of the Universiade, so that fans and friends were no longer so wronged..
Before this game, everyone was in suspense. After all, Japan’s strength was not much weaker than that of China and Taipei. It would be a shame to worry that the Universiade men’s basketball team would lose to Japan in the same way.
However, the command of head coach Chen Lei in this game has to be much more targeted than in previous games. Japanese players have obvious weaknesses, average confrontation and average ability to protect the basket, which gives more opportunities to players with excellent confrontation ability such as Zhang Ning and Chen Guohao. So Chen Lei arranged for Zhang Ning and Chen Guohao to turn around, so that the two men could take turns to play singles, hold the ball for half a court, hold the ball to fight back, break through the attack box directly with the cover of teammates, and draw three points directly with the cover of teammates. The two men propped up the offensive end of the Universiade men’s basketball team.
Among them,Zhang Ning scored 27 points and 4 assists in 12 of 17 shots. His offensive methods are diverse and efficient. He only has the basket and opponents in his eyes. He is really an "anti-Japanese veteran."; On Chen Guohao’s side, as the champion of this draft, he has been holding his breath and preparing for a big fight. Unfortunately, he has never been given a chance. This game finally ushered in the night when his state exploded. He scored 22 points, 3 assists and 2 blocks in 10 of 12 shots, which made everyone see the strength of the champion clearly.
As the head coach, Chen Lei should have seen the shortcomings of this men’s basketball team before the game. If the team doesn’t cooperate well, the tactical accomplishment is average and the defensive end doesn’t perform well, then the team basketball can’t solve the problem.The best way is to find the key people, let them control the rhythm of the game, drive the whole team to win the game through attack, and don’t engage in those fancy things.
In the words of American men’s basketball coach Cole:Make the game easier!