When Almeida discovered the virus, she observed that it was like a sphere, but it had different columnar protrusions on its surface, and at first glance it looked like a crown. Then Almeida named it after its shape. Later, when scientists were doing zoological experiments, they found this virus in some birds and mammals, especially bats. In clinical research, it is found that the virus can cause respiratory or gastrointestinal diseases in many vertebrates, including humans.
So far, there are seven kinds of this virus that can cure diseases in the world. Four kinds of gastrointestinal diseases can cause mild symptoms, and the other three can cause serious respiratory diseases, which are widely spread among people. Including today, China has faced this virus twice. First, SARS occurred in 2003, that is, SARS virus; Second, a new type of pneumonia has occurred since June 2020. The last one is 20 12 & discovered by humans; Ldquo Middle East Respiratory Syndrome &; rdquo。
Although humans didn't know about this virus for a long time, even new virus types will be discovered by humans in the future. However, you can think about the ancient plague. Is it possible that this plague was caused by some kind of virus? Maybe it's the virus that everyone is afraid of today. In the case of poor medical and health conditions in ancient times, the plague passed in a short time and did not cause irreparable disaster to mankind.
The development of the virus is limited by people and the external environment. We just need to take precautions, and don't be too anxious and panic. The road to science is long, and the war between man and virus is bound to win.