Past lives of the virus.

　　If you want to defeat the virus, you must understand the virus.

　　As a living body in the micro-world, virus must be supported by science and technology to see through the source of its disease and the principle of its poison and to crack its evolution and transmission mechanism.

The picture shows the virus picture for the Military Medical Research Institute.

　　They are very old — —

　　Appearing in the early days of the origin of life, it is the oldest and most primitive "indigenous people" on the earth.

　　They are tiny — —

　　The biggest virus is only one tenth of the diameter of a hair.

　　They are simple — —

　　It is basically a "genetic material (DNA or RNA)+ protein capsid" model.

The picture shows the personnel of the military medical expert group in the front line of Wuhan’s anti-epidemic. The picture is provided by the Military Medical Research Institute.

　　They are "fragile" — —

　　Can’t live independently, you need to find an ideal host to complete the reproduction and evolution. Once you leave the host, only death awaits them.

　　They are huge — —

　　There are more than 10 bacteriophages (viruses infected with bacteria) in the world’s waters alone. If they are lined up, the total length will reach 200 million light years.

　　They are everywhere — —

　　There are viruses everywhere on the earth where there is life.

　　From sea to land, from plants to animals, from bacteria to fungi … … Even in the human genome, there are virus genome sequences.

　　What causes it is still a mystery.

The picture shows the researchers of Wuhan anti-epidemic frontline processing the samples to be solved. Photo courtesy of Military Medical Research Institute.

　　Fortunately, most viruses are harmless to human beings.

　　So far, only 14 virulent viruses have been found to seriously threaten human life and health, such as smallpox, influenza, hepatitis, AIDS, SARS, Ebola and so on.

　　Usually,The virus only proliferates and spreads in certain kinds of hosts.It is difficult to "move" from one host to another.

　　butWhen some virus mutations accumulate to a certain extentAfter that, it can successfully cross the interspecific barrier of the host, proliferate and spread continuously in the new host, causing the disease and death of the new host, which may lead to an epidemic.

　　The picture shows that the first-line researchers in Wuhan are receiving samples from the Military Medical Research Institute.

　　Looking at the current epidemic situation, emerging infectious diseases have always affected the global nerves.

　　Establishing and perfecting the public health system is the defense strategy for human beings to prevent and control epidemics. Starting from the construction of ecological civilization, it is the fundamental way to achieve coordinated development and harmonious coexistence between man and nature.