Virus Characteristics

Viruses are "biological" entities, which find themselves with certain information of their own, but which do not belong to any of the kingdoms of living beings.
The origin of viruses cannot be defined, but by their nature, some scientists consider them as entities ancient beings that may have existed alongside primitive living things or that are the nexus between living things and not alive.
Viruses have been controlled by vaccines and antiretroviral drugs but it is the immune system the best way to fight viruses, even if it cannot fight all viruses that affect human beings alive.
The name of virus means poison and it is applied due to the damage that it produces in the involuntary host. Virus is a Latin word that as already said means poison and it was given because of the harmful way in which it invades guests.

Their existence was known first by deduction or theory, but later in the year 1931, in Germany the electron microscope was invented, and this allowed us to see them.
Viruses are always and always will be parasites and their replication occurs in an ever-changing way, acquiring or complementing the host's genetic information.

The most outstanding characteristics of viruses are:

Among the qualities of viruses we can highlight the following:

1. Viruses can be considered as the biological link between living and inanimate beings. This is due to not having the qualities of living beings to coexist, reproduce and grow, develop and die.
2. Its reproduction is through the genetic information of the cells in which it enters, invades and kills; and always kills the invading cell while copying exactly
3. It is capable of invading both plants and animal beings and mutates in each invaded entity due to the host's genetic information.
4. Viruses have only one of the nucleic acids, either DNA or RNA.
5. These entities can be cataloged according to three criteria:

Size.- Viruses can be so small that they can go from 20 nanometers to 300 or more nanometers.
Crystallization.- Common biological beings, whether they are animals, plants or fungi, have different forms, whereas viruses have certain geoometric figures of glass.
Parasitism.- Viruses are invariably always parasites, because that is the only way they have to survive.

Viruses are made up of a nucleic acid, either DNA or RNA, and the latter with a protein envelope.
There is an immense variety of viruses and they can affect both animals and plants:

• Nile virus
• Rage
• Measles
• Flu
• Rubella
• Poliomyelitis
• Acquired immune deficiency
• Warts
• Tobacco mosaic virus etc.