At present, the number of infected people in Shanghai has exceeded 500 thousand. What are the characteristics of this epidemic?

The epidemic in Shanghai has the following three characteristics: rapid spread, strong communication ability, and most of them are asymptomatic infected people.

There were more than 500,000 cases in Shanghai in just over a month, indicating that the epidemic situation in Shanghai is still relatively serious in a short time. However, many places are actively supporting Shanghai, believing that the epidemic can be controlled within one month. If the epidemic in Shanghai wants to end in a short time, we must take action according to the characteristics of this time.

The epidemic spread very fast. I think the biggest feature of this epidemic in Shanghai is that it spreads very fast, which is why there are more than 500 thousand cases. Before the epidemic prevention and control measures were taken, the spread of the virus was hidden.

The virus is highly contagious, and the mutated virus is highly contagious. It is precisely because of this that a case in Shanghai has a large number of infected people, which can make more than 20 people positive. Although the vaccine has a certain protective effect on ordinary people, it cannot fundamentally protect ordinary people from infection.

The vast majority of infected people are asymptomatic. I believe many people have observed that more than 90% of new cases in Shanghai are asymptomatic, and less than 10% are confirmed cases. Although this is a major feature of the epidemic in Shanghai, it is a good thing for the overall prevention and control, because asymptomatic people do less harm to ordinary people and asymptomatic infected people can be controlled.

It is precisely because of the strong spreading ability and speed of this epidemic in Shanghai that it broke through 500,000 cases in a short time. For Shanghai, the challenge is also very great, which must be controlled in a short time, otherwise there will be more and more new cases in the future.