What does the popular inflection point mean?

The change of epidemic situation has been controlled.

The inflection point of epidemic situation refers to the control of epidemic situation changes, such as the decrease of cases and the decrease of growth rate. In life, the inflection point refers to the point where the development trend of things begins to change, similar to the turning point. In mathematics, an inflection point refers to a point that changes the upward or downward direction of a curve.

Gao Fu, director of the Center for Disease Control and Prevention in China, took the lead in inferring the inflection point of the epidemic. Gao Fu said in an interview on June 28, 65438/KLOC-0, "At present, prevention and control measures are playing a role, and suspected cases are decreasing. If we follow the current measures, we should see an inflection point in the near future. It is expected that the Lantern Festival may improve. " Wen, an academician of China Academy of Engineering, believes that the decline in the number of suspected infections and the decline in the number of cases are the signs of turning points.

Influencing factors of inflection point

All infections have a downward process. The time of decline depends on the immune level of the population and whether the intervention measures taken are effective. Group immunity is the ability of people to resist the invasion and spread of infectious disease pathogens, which is reflected in the proportion of people with immunity to the total population.

Wen, an academician of China Academy of Engineering, believes that the improvement of group immunity is the most important factor for the turning point.

Therefore, infected people are found early and isolated early; The medical team developed the vaccine in novel coronavirus, and strengthened contact tracking and quarantine isolation; People wear masks, try to avoid contact with others, work and rest regularly, and enhance their own resistance. These measures can promote the inflection point to appear as soon as possible.

An outbreak of viral pneumonia in 20 19 was found as "novel coronavirus 20 1 9", which was named by the World Health Organization on June 65438+1October 12, 2020. Coronavirus is a large virus family, which is known to cause colds and serious diseases such as Middle East Respiratory Syndrome (MERS) and Severe Acute Respiratory Syndrome (SARS). Novel coronavirus is a new coronavirus strain, which has never been found in human body before.

Since 20 19 and 12, influenza and related diseases have been continuously monitored, and many cases of viral pneumonia have been found, all of which were diagnosed as viral pneumonia/pulmonary infection.

According to CCTV news, Ceng Guang, chief epidemiologist of China Center for Disease Control and Prevention, pointed out that the epidemic situation in novel coronavirus is still in a mild period. As far as the severity of the epidemic is concerned, the spread has entered the early stage of community communication, which can be completely reversed as long as public health measures are appropriate.