Viruses

Viruses

Viruses are acellular micro-organisms Which can only grow in the living cell. These nuclei are formed in conjunction with acid and proteins, Outside the body, they are dead-like But they are alive inside the body. They can be collected in the form of crystals. A virus cannot reproduce without any living medium. It can live in the state of peace for hundreds of years and whenever it comes in contact with a living medium. When the virus enters the living cell, He replaces the genital structure of the cell's basic RNA and DNA with its genetic information. And infected cells start reproduction of infected cells like themselves.

Virus literally means venom. First of all, in 1796, Dr. Edward Jenner discovered that chickenpox was caused by the virus. He also invented the chickenpox vaccine. After this, in 1886, Adolf Mayer told that the mosaic disease in tobacco is caused by a particular type of virus. Russian botanist Ivanovsky also discovered the existence of the virus when studying the mosaic disease in tobacco in 1892. Bezarnic and Bore also saw the effect on tobacco leaves and named it Tobacco Mosaic. The reason for placing the word mosaic was to mark the mark on the tobacco leaf similar to their mosaic. Seeing this sign, they named the particular virus as Tobacco Mosaic Virus.

Viruses are both beneficial and harmful. Bacteriophage virus is a beneficial virus, It protects humans from diseases of cholera, dysentery, typhoid, etc., destroying the bacteria causing disease. Some viruses cause disease in plants or animals and are harmful. HIV, influenza virus, is a major virus-producing poliovirus. By contact, by air, by food and water and insects transmit viruses. But specific types of viruses are transmitted by specific methods.