The prevention and control of the COVID-19 epidemic is a major test for scientific and technological innovation in China's biomedical field. To win the war, we must make good use of science and technology as a key factor,

continue to accelerate the research and development of neutralizing antibody drugs, new detection technologies and products, and enrich the toolbox of science and technology to fight the epidemic through continuous tackling.

In particular, we must strive to master more core technologies with independent intellectual property rights, and fundamentally improve the level of scientific and precise prevention and control. We will provide stronger protection for people's lives and health.

Epidemic prevention and control must race against time.Prevention and control work should be strict, realistic, scientific and precise

The results of flow tracing show that the recent local clusters of outbreaks in China are caused by imported sources. In addition, there are multiple transmission chains in many places, and the sources of the epidemic are complicated,

which brings great challenges to the tracing and prevention and control work. In view of the epidemic situation in many places, wide coverage and frequent occurrence, how should we effectively prevent and control it?

What measures have been taken in all localities? How can we achieve the maximum effect of prevention and control at the minimum cost and minimize the impact of the epidemic on economic and social development?

At present, the world is in the fourth wave of COVID-19 epidemic peak, new cases have been reported for 11 consecutive weeks more than 10 million. The Asian region is showing a rapid rise, and China's neighboring countries and regions continue to set the highest record of new cases in a single day.

The results of this round of epidemic flow tracing show that the recent local clusters of outbreaks are all caused by overseas imports. Since March, the frequency of the epidemic in China has increased significantly, the number of infected people has increased rapidly, and the scope of the epidemic has been expanding.

Liang Wannian, head of the National Health Commission's COVID-19 Response Leading Group, said: "The general secretary clearly stressed that it is very important to continue to adhere to the general strategy of 'preventing import from outside and preventing rebound from inside' and the general policy of 'dynamic zeroing',

which further clarified our direction and further demonstrated the firm confidence of the Chinese Communists and the Chinese government in protecting people's health and safeguarding people's lives."

The global spread of COVID-19 has brought mankind to a critical juncture in history, which is both a crisis and a major test for a country. Since the normalization of epidemic prevention and control,

China has adhered to the "prevention of import from outside and prevention of rebound from inside", continuously improved the level of differentiated and targeted prevention and control by different regions, and quickly and effectively handled local clusters of epidemics, thus protecting people's life and health to the maximum extent possible.

However, the Omicron variant strain is aggressive, and it spreads faster and is more stealthily than the previous viruses, resulting in increased difficulty in epidemic control. In the context of the high prevalence of the global epidemic, some places in China have also faced the most severe challenge of the epidemic situation since the normalization of prevention and control. Persistence is victory.

Liang Wanian said: "The history of the struggle between human beings and diseases has fully proved that human beings will eventually overcome diseases, but when the victory will come completely depends on the combination of a series of elements such as our science and technology,

our prevention and control strategies and measures." We are also glad to see that in the fight against the COVID-19 epidemic, mankind is making use of science and technology, and we are gradually using some effective weapons. These are our hopes, and we will surely accumulate small victories into big victories, so confidence is the most important thing at present."

Persistence is victory, and only persistence can lead to victory. The global epidemic will not end in the near future, and China's epidemic prevention and control situation is grim and complex.

At present, there are many local clusters of COVID-19 in China, which are widespread and frequent. Since March, more than 29,000 cases of COVID-19 infection have been reported nationwide, affecting 28 provinces.

Liang Wannian said: "This is determined by the characteristics of the new coronavirus epidemic strain Omicron strain, the easy way of transmission, coupled with the gradual increase in population flow and other factors,

it will be easy to make the disease from one group to another group, and even with the frequent increase in traffic, it will be from one region or even one country to another country, the existing points are more, more extensive and frequent. It does not mean that our national prevention and control strategies, guidelines and measures are ineffective."

The current prevention and control measures are scientific and effective, but China has a vast territory, uneven medical and health conditions, and uneven vaccination among different groups.

We must pay great attention to the current epidemic trend of the virus, recognize its potential harm, and make great determination and efforts to control it as soon as possible, so as to prevent it from causing sustained social transmission and a wider range of epidemics and outbreaks. To achieve "dynamic zero elimination" as soon as possible and curb the spread of the epidemic has become the most urgent task at present.