The first is the Black Death. The plague occurred in Europe in the14th century. This is a plague, which became the Black Death in many records. At that time, when the Black Death occurred, nearly 25 million Europeans died. The plague lasted from 1347 to 1353, and Italy and France were the most seriously affected by the epidemic. In Europe at that time, a large number of bodies were transported outside the city almost every hour, and no one was seen on the street.
Second, smallpox. Smallpox is an infectious disease with a very high mortality rate and is very contagious. Once infected, the condition will become very serious immediately. At that time, the worst smallpox occurred in the United States. Later, with the development of time, smallpox spread all over the world, and people all over the world were in danger. Moreover, smallpox, which lasted for nearly a hundred years, has not been eliminated, resulting in the death of nearly 100 million people. Even the emperor shunzhi and Emperor Tongzhi of the Qing Dynasty failed to escape. Later, a man named Qin Na invented the vaccinia inoculation method and eliminated smallpox.
The third yellow fever, the virus first appeared in the United States in 1648. It is caused by yellow fever virus, which can be spread by mosquito bites and is particularly contagious. Coupled with the very backward medical conditions at that time, nearly 10 thousand people died.
Fourth, the Justinian plague. The plague occurred in 54 1 year. It first happened in the Mediterranean region of Europe. At that time, there were no good medical conditions, and the plague had a great impact on Europeans at that time, leading to a sharp decline in the population of various countries at that time.
Fifth, cholera. Cholera is caused by Vibrio cholerae. This pathogen mainly exists in water, and anyone who drinks water containing Vibrio cholerae will be infected. And infected people will continue to have diarrhea. According to records, the occurrence of cholera in India caused nearly 300,000 deaths. ?
Sixth, the Spanish flu. This infectious disease occurred from 19 18 to 19 19, with more than 1 100 million infected people and about 40 million deaths. Although it was called Spanish flu, it did not happen in Spain, because Spain had the largest number of infected people at that time.
Seventh, Russian typhus. Typhus is a highly contagious infectious disease. After people are initially infected with the disease, they will not get sick immediately, but after an incubation period of 5~2 1 day, they will have symptoms such as high fever, muscle pain and spasm. There were no effective antibiotics at that time, resulting in nearly 2.5 million deaths.
Eighth, tuberculosis. Tuberculosis still exists today. It is an infectious disease caused by Mycobacterium tuberculosis. In ancient times, because of poor medical conditions, once the disease was cured, it meant death. In ancient China, tuberculosis was also called? Tuberculosis? According to records, tuberculosis claimed hundreds of millions of lives at that time. ?
Ninth, Anthony plague. This great plague occurred in 164 to 180. When I first attacked the Roman Empire. According to some historians, the great plague claimed nearly 5 million lives.
Tenth, the plague in Athens. The plague in Athens occurred in 430 BC. According to the historical data of historians, the plague caused nearly half the deaths in Athens at that time, and its terrible degree made people feel scared now.