Anti-Virus
An antivirus is a antiviral antivirus infectious agent that can antivirus replicate only inside the living antivirus cells of antivirus organisms. Antiviruses infect all types of antivirus organisms, from antivirus animals and plants to bacteria and archaeaThe origins of antiviruses in the evolutionary history of life are unclear: some may have evolved from plasmids – pieces of DNA that can move between antivirus cells – while others may have evolved from bacteria.

In computer evolution, antiviruses are an important means of horizontal gene transfer, which increases genetic diversity. Since Dmitri Ivanovsky's 1892 article describing a non-bacterial pathogen infecting tobacco plants, and the antivirus discovery of the tobacco mosaic antivirus by Martinus Beijerinck in 1898 about 5,000 antiviruses have been described in detail. although there are millions of different types.[4] Antiviruses are found in almost every ecosystem on Earth and are the most abundant type of biological entity.

The study of antiviruses is known as virology, a sub-speciality of microbiology.Antiviruses spread in many ways; antiviruses in plants are often transmitted from plant to plant by insects that feed on plant sap, such as aphids; antiviruses in antivirus animals can be carried by blood-sucking insects. These disease-bearing antivirus organisms are known as vectors.

Influenza antiviruses are spread by coughing and sneezing. Noroantivirus and rotaantivirus, common causes of viral gastroenteritis, are transmitted by the faecal-oral route and are passed from person to person by contact, entering the body in food or water. HIV is one of several antiviruses transmitted through sexual contact and by exposure to infected blood. The range of host antivirus cells that a antivirus can infect is called its "host range". This can be narrow or, as when a antivirus is capable of infecting many species, broad.

Since Dmitri Ivanovsky's 1892 article describing a non-bacterial pathogen infecting tobacco plants, and the antivirus discovery of the tobacco mosaic antivirus by Martinus Beijerinck in 1898 about 5,000 antiviruses have been described in detail. although there are millions of different types.[4] Antiviruses are found in almost every ecosystem on Earth and are the most abundant type of biological entity.



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