Why can viruses kill people? Where are the viruses present?

According to current reports, the new coronavirus in Lanyan is very afraid of heat, so it is generally said that it is generally going to a hotter place or, and the new coronavirus can be blocked through n and nine masks, most of which can be blocked to more than 95%, so as long as you don't go to places with a lot of people, and don't go to places where the virus is densely infected, you can rest assured.

Viruses do not exist to kill their hosts. So, what is the ultimate purpose of the existence of the virus? Symbiosis with the host?

The following is a simple analysis of the survival and reproduction characteristics of viruses Not only viruses, but the existence of any species has two basic goals: survival + reproduction, which are also the two instincts of life, without which life cannot continue. Viruses are certainly no exception, although viruses are not life in the strict sense of the word.

<> viruses are something between life and non-life. It cannot survive on its own. It must rely on the host, its cells, to reproduce.

What is the ultimate goal of the virus? Kill the host or coexist with it? None of them are in the right environment, where the virus can multiply quickly.

However, for the virus, it is not enough to reproduce quickly, it also needs to have a strong transmissibility, and only by spreading quickly between different hosts will it not be eliminated naturally, and it will be more adaptable to the environment.

There are many reservoirs for viruses, not just humans, but other species as well. Therefore, the virus must constantly transmit the virus gene to different hosts in the process of reproduction, and cannot be eliminated, which also makes the virus evolve a super evolutionary change ability in the process of reproduction, and the evolution of the virus adapts to different hosts through continuous mutation, which is why we often hear about it"So-and-so virus! "Viruses cannot survive and reproduce independently, do not eat, do not excrete, have no metabolism, and must parasitize in the living cells of the host in order to have vitality.

Within the host, they do only one thing, and that is to reproduce. However, once the virus leaves the host cell, it quickly becomes inactive and shows no signs of life. Therefore, there is still controversy about whether the virus is a living organism or not.

It can only be said that viruses are special beings between living and inanimate things. Viruses are the largest species on Earth and can be found everywhere in nature. Viruses can infect any living organism, including humans, animals, plants, bacteria, and fungi.

But viruses can only infect certain organisms or groups of organisms.

The reason why he is called a virus is also because he is harmful to the human body, so he is called a virus by humans, but in fact, it is also a living organism, and his ultimate purpose is not to kill the host. For the earth, human beings can actually be called a virus, because in the process of continuous exploration of the world, human beings have also done certain harmful behaviors to the world, but our purpose is only to coexist with the earth. So the virus is actually just trying to coexist with the host, and if he kills the host, then he himself does not exist.

Some people shy away from viruses when they mention them, but in fact, viruses are also living organisms, and they need to rely on other biological hosts to survive. Viruses can actually lie dormant in the human body for a long time, and they may spend years or even decades living in the host. He is also called a virus because of his potential to kill the host.

But we can think that if he kills the host, he has no way to parasitize on other hosts, then it will also be killed by itself, so we can also know that his purpose is not to kill the host, but to live with the host.

Only by living in symbiosis with the host can he survive forever and be able to constantly find new hosts. The virus will kill the host, in fact, on the one hand, it is also because the host's own immunity is not enough, so it will be killed. The virus is also constantly evolving, trying to find a stronger host, if it kills the host, then it means that the host is not suitable for being parasitized by the virus.

For human beings, we are constantly being tested by viruses, and we are actually sick because we are infected with some viruses, some of which can be cured by drugs, and some viruses, our own immune system cannot fight them, so we die because of this. But if she can find a stronger host, then he will also be able to live in symbiosis with the host, which is why the virus will continue to spread.