Chinanews client, Beijing, July 23 (Reporter Zhang Ni Ma Xueling) The hour hand points to July 2020. While many countries are vying for the historical moment of Mars, human beings are still deeply involved in the new crown epidemic.

　　As of now, the number of confirmed cases of the new crown worldwide has approached 15 million, with a total of more than 610,000 deaths.

　　Some countries have not contained the first round of the epidemic, and some countries have ushered in a new wave of rebound. The virus hits one after another like a tide, and the world is still on the cusp of the new crown epidemic.

On July 15, local time, in Florida, USA, locals drove in a long queue waiting to be tested for the new crown virus. Image source: Visual China

The waves before and after the waves stretch! Is the epidemic still over?

　　Among those on the cusp of the new crown epidemic is the United States, the world's number one power.

　　The latest data shows that the number of confirmed cases in the United States has exceeded 3.89 million, and the number of deaths has exceeded 141,000. However, a report released by the Centers for Disease Control and Prevention (CDC) shows that the actual number of people infected with the new coronavirus in the United States far exceeds the number of officially confirmed cases. The actual number of people infected with the virus in different parts of the United States is 2 to 13 times higher than the reported number. Wait. Even U.S. President Trump admitted that the U.S. epidemic has not reached an inflection point and "will get worse before it improves."

　　Brazil's number of confirmed cases and deaths has caught up with the United States in a short period of time and rose to second place in the world.

　　According to data released by the Brazilian Ministry of Health on the 21st, there were 41,008 new confirmed cases of new coronary pneumonia in Brazil compared with the previous day, with a total of 2,159,654 confirmed cases, 1,367 new deaths, and a total of 81,487 deaths.

　　At present, there have been over 1 million confirmed cases in three countries around the world. In addition to the above-mentioned United States and Brazil, the cumulative number of infections in India is approaching 1.2 million.

　　The rapid growth of some other countries is also worrying: Russia has confirmed more than 780,000 cases; 54 countries in Africa have all experienced the new crown epidemic, with more than 700,000 confirmed cases...

　　The first wave is not there yet, the back wave rises again! What is even more worrying is that in some countries that have contained the spread of the epidemic, there have been rebounds recently!

　　In Japan, one month after allowing people to travel freely across the country on June 19, the cumulative number of new infections was about 7,000. The epidemic has rebounded, and the epidemic situation in the capital Tokyo is particularly severe. The number of hospitalizations has tripled within 20 days.

　　The epidemic rebounded in France, Romania, Israel, and so on. Even in China, where the strictest prevention and control measures were taken, the epidemic reappeared in some places: In June, a new cluster of epidemics occurred in Beijing's wholesale market, more than a month later , Xinjiang has confirmed local cases. Outside the mainland, Hong Kong has recently experienced a third wave of outbreaks.

　　"It's not over yet?" ... This message on the social media platform expressed everyone's heart.

Data map: In the shelter hospital on the outskirts of Sao Paulo, medical staff communicate with patients.

The rebound of the epidemic leads to torture: Do we really know the new crown?

　　After contending with the new crown for half a year, everyone expects that the virus will disappear completely and life will return to normal, but the reality is not the case.

　　"New Crown, let's break up!"

　　This sentence of self-entertainment by swiping the Internet is not only due to people's inability to respond to the continued spread of the epidemic, but also out of anxiety about the unknown spread of the new crown.

　　First, it is the change from the virus itself.

　　Sumia Swaminathan, the chief scientist of the World Health Organization, has previously pointed out: laboratory studies have found that the mutation of the new coronavirus D614G may cause the virus to accelerate replication, which means that it may enhance its transmission. Although experts emphasized that there is still a big difference between laboratory results and the changes in the actual spread of the virus, scientists have monitored the mutations. But such a discovery still sounded a wake-up call to the world.

　　Secondly, are there loopholes in our prevention and control?

　　The recent global rebound of the epidemic has allowed people to discover some "vulnerabilities" that have not been noticed before. For example, a cluster of epidemics in the slaughter industry in many countries in Europe and the United States, as well as an epidemic in Beijing's Xinfadi wholesale market in June, have drawn people to the once neglected cold chain transportation.

　　In addition, how many asymptomatic infections are there?

　　Recently, a large number of asymptomatic infections have been discovered at home and abroad, which may make the spread of the epidemic in the population more secretive.

　　All these uneasiness is always tortured: do humans really know the new crown?

　　So far, the answer is unknown.

　　"The so-called anti-epidemic normality encompasses many categories, including people who are not completely and absolutely clear about the spread of the disease, and it is difficult to avoid individual cases of inadequate prevention and control among the population, and so on." Fu Hua, a professor at the School of Public Health, Fudan University Said in an interview with a reporter from Chinanews.com.

　　He emphasized that as the understanding of the development of the virus and the epidemic continues to improve, more potential risks may be discovered. Prevention and control measures should also be followed up in time. The public must always be vigilant.

On June 1st, local time, in Brasilia, the capital of Brazil, artists held red balloons to mourn the people who had unfortunately passed away during the new crown pneumonia epidemic.

On the "top of the wave", how can human beings say goodbye to the new crown?

　　In winter, people look forward to the warmth of spring and a spring date; in spring, people look forward to summer when the high temperature will dissipate the epidemic; in summer, people are beginning to worry about whether there will be a large-scale outbreak in autumn and winter... , Do you really want to live with the new crown?

　　Zhang Wenhong, head of the Shanghai expert team for the medical treatment of new coronary pneumonia and director of the Department of Infectious Diseases of Huashan Hospital affiliated to Fudan University, recently made such a research judgment: the characteristics of influenza have not been shown in this new coronary pneumonia epidemic, and the epidemic is still continuing. So far, the peak of the spread of new coronary pneumonia has not yet arrived.

　　Wu Zunyou, chief expert of epidemiology at the Chinese Center for Disease Control and Prevention, also said that a series of phenomena remind us that the emergence of an epidemic in the future is a normal state.

　　At present, a more common view is that the epidemic may continue until 2021, which is much pessimistic than the original prediction made by the WHO and many governments.

　　As if fighting against the new crown, it is destined to be a protracted battle. So, how to fight this battle next?

　　In the long run, it must be drugs and vaccines.

　　Nowadays, the real new crown drug has not yet appeared. Although the vaccine research and development that is regarded as the "terminator" of the virus has made phased progress in some countries, there is still a long way to go before the people can really use it.

　　However, at this stage, many countries, including China, are also exploring more effective response strategies, including promptly launching emergency response plans, immediately carrying out large-scale nucleic acid testing and related sampling tests, and so on.

　　Experts believe that a series of measures taken by China has achieved better results in epidemic prevention and control and resumption of production in the future with relatively small resource consumption.

　　In foreign countries, large-scale nucleic acid testing is also used as an important prevention and control method.

　　Fu Hua said that when there is no better method, large-scale nucleic acid testing and isolation measures are still very effective and relatively accurate. With continuous exploration in practice, perhaps a more accurate and efficient model can be found in the future.

　　Zhang Wenhong said, "In human history, no epidemic can truly defeat mankind, and this time is no exception."

　　I believe this time, there will be no exceptions. (Finish)