So far, there have been many large-scale plagues in human history, which often disappear in less than three years. The epidemic situation in COVID-19 is still in the prevention and control stage, so it is difficult to make a quick decision and quickly kill the transmission route of the virus. Folk sayings often mention that "a pandemic will only last for three years". Specifically, even a serious epidemic can be completely ended within three years.
The problem is that the COVID-19 epidemic has existed for two and a half years, and the three-year period is getting closer and closer. Is it possible for it to finish on time? The doctor gave the answer. There used to be an old saying that "the great plague only lasted for three years", which means that no matter how big the plague broke out, it basically "died down" within three years. On the one hand, it benefits from people's attention and prevention, using drugs to fight the epidemic and culling the source of treatment.
On the other hand, the mortality rate of epidemic diseases has gradually changed from the high at the beginning, and the degree of death has decreased. At the same time, the human body will strengthen the immune system to fight the plague. On the other hand, the high temperature climate in summer is also conducive to eliminating the epidemic and controlling its spread. Throughout the history books, there are indeed large-scale epidemics in history, and the epidemic has not been recorded for more than three years. It seems that there is some basis for this statement, which is also the origin of the statement that "the pandemic lasted for three years".
From the long river of history, during the evolution of thousands of years, plagues have also broken out from time to time. Both western countries and eastern civilizations are exposed to rain and dew, but they always follow a principle: the spread does not exceed three years. For example, plagues such as the Black Death mentioned so far are frightening, which brought great disasters to European residents in the Middle Ages and caused millions of deaths.
The word "plague" first appeared in written records, and it was Wei Zhi written by Ge Hong, a Taoist theorist and medical scientist in the Eastern Jin Dynasty. There is a saying in the article: you are not afraid after the plague, but you are invisible in an emergency. The so-called "plague" here refers to infectious diseases. There have been several written pandemics in history, and from the literature, every situation is amazing enough.
Another example is Athens, where there was a plague epidemic for a while and half of the population was killed or injured; In the middle of the industrial revolution, tuberculosis was prevalent, with millions of infections and deaths. At the beginning of the 20th century, the world flu was born, and the global population decreased 1/6. Only in terms of mortality, the epidemic situation in COVID-19 can be compared with the above-mentioned severe plague. According to incomplete statistics, worldwide, there are more than 500 million confirmed patients in COVID-19, and the death toll is as high as 665,438+10,000.
Epidemiology has confirmed that COVID-19 is highly variable and can adapt to the environment quickly and divide into new strains. Therefore, it is difficult for medical experts to predict the evolution trend of the virus. If the COVID-19 epidemic continues to spread, the world economy and public safety will be devastated.