In February 2119, a sudden Covid-19 affected more than 81 countries and regions in the world, because the virus swept the world and showed an expanding trend, which affected all countries in the world.

First of all, because Covid-19 is an infectious disease, under such circumstances, the epidemic is likely to be pandemic. Fortunately, China has basically controlled the spread of the epidemic. However, the spread and prevalence of overseas epidemics also have an impact on China. Our country treats patients infected with Covid-19 free of charge, and the expenses involved, such as requiring all walks of life to suspend business during the epidemic control period, subsidies to enterprises and so on, are all huge expenses. According to the forecast of the International Monetary Fund, China's GDP will increase by 1.2% in 2121, a decrease of 4.9% compared with the previous year, and the simple conversion is about 4.8 trillion. ?

From a global perspective, the epidemic has now spread to most countries in the world, especially many countries have not controlled the epidemic well, especially the United States, Italy, Germany, France, Britain and other countries, which are still facing the second and third wave of epidemic attacks, but they are still unable to prescribe the right medicine and control it well. This has affected the economies of the countries affected by the epidemic. The industries that are deeply affected by the epidemic can be said to be all over all walks of life, such as tourism, entertainment, catering and so on. Because of the promotion of long-distance social interaction, not only the tourism industry has no market, but also the entertainment industry and catering industry have been restricted. If people have no income, they will have no desire to consume, which is actually a vicious circle.

There are also many large enterprises that have lost hundreds of millions, some are facing bankruptcy or have closed down. Looking at the decline of employment rate and the rise of unemployment rate in various countries, the GDP of various countries has also dropped a lot compared with that in previous years.