The word plague often appears in costume dramas. What is its disease and symptoms?

The plague in costume dramas is a modern infectious disease. Plague is not a disease, but a highly contagious disease. Plague is mainly caused by easily contagious and highly contagious bacteria, viruses and microorganisms. SARS, plague, smallpox and flu are also a kind of plague.

As for the symptoms of the plague, it is recorded in the ancient book "Danxi Heart Method Plague V". People who record the plague in it are characterized by rapid onset, and once the mortality rate is particularly high, it is easy to be afraid of cold and then have fever all over the body, accompanied by symptoms such as headache and white tongue.

In ancient China, plagues often appeared in harsh environments. For example, when there are corpses everywhere after the war, a large number of microorganisms and viruses breed, which easily leads to plague. At the same time, after natural disasters such as drought and flood, plague is also easy to happen. In ancient times, after natural disasters, the ecological environment was destroyed to a certain extent, which meant that the ecological balance was broken at that time, so it was easy to see a large number of germs and microorganisms, and the environmental sanitation in ancient times was difficult to maintain. Once bacteria enter the body, it is easy to cause plague.

At the same time, plagues were recorded in ancient dynasties in China. For example, the Collection of Lu Chunqiu and Ji Chun in the Spring and Autumn Period said, "When Ji Chun is in summer, people will suffer from many diseases and epidemics." It is pointed out in the book that in the Spring and Autumn Period of China, people were no strangers to the plague, and some laws other than the plague had been explored, which also shows that the ancients in China had a certain degree of understanding of the plague in the Spring and Autumn Period.

The ancients in the Spring and Autumn Period found that plagues are likely to occur all year round, whether it is cold or hot, and when the weather is abnormal, plagues are prone to occur. It can be seen that whenever the plague appears, it will do great harm to people. Since ancient times, mankind has been fighting the plague.