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Life-cycle of a typical virus (left to right); following infection of a cell by a single virus, hundreds of offspring are released. When a virus infects a cell, the virus forces it to make thousands more viruses. It does this by making the cell copy the virus's DNA or RNA, making viral proteins, which all assemble to form new virus particles. [37]
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. [1] Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. [2] [3] Viruses are found in almost every ecosystem on Earth and are the most numerous type of biological entity.
Dhori virus (DHOV) is a species of the genus Thogotovirus and a member of the family Orthomyxoviridae. It is infectious to humans, but its host is most commonly Ixodidae ticks , [ 1 ] and can also infect other species of ticks , mosquitoes , and mammals .
Orthomyxoviridae (from Ancient Greek ὀρθός (orthós) ' straight ' and μύξα (mýxa) ' mucus ') [1] is a family of negative-sense RNA viruses.It includes seven genera: Alphainfluenzavirus, Betainfluenzavirus, Gammainfluenzavirus, Deltainfluenzavirus, Isavirus, Thogotovirus, and Quaranjavirus.
Virus classification showing major ranks This is a list of biological virus families and subfamilies. See also Comparison of computer viruses. This is an alphabetical list of biological virus families and subfamilies; it includes those families and subfamilies listed by the ICTV 2023 report. [1] For a list of individual species, see List of ...
The virus is very stable. Transmission can occur by respiratory droplets or via faeces, with swimming pools being a common source of infection. A total of 57 serotypes, grouped into 7 species, have been found in humans; they cause a wide range of illnesses including mild respiratory infections, conjunctivitis and gastroenteritis.
A viral disease (or viral infection) occurs when an organism's body is invaded by pathogenic viruses, and infectious virus particles (virions) attach to and enter susceptible cells. [ 1 ] Examples include the common cold , gastroenteritis , COVID-19 , the flu , and rabies .
Influenza A virus (Alphainfluenzavirus influenzae) [1] or IAV is the only species of the genus Alphainfluenzavirus of the virus family Orthomyxoviridae. [2] It is a pathogen with strains that infect birds and some mammals , as well as causing seasonal flu in humans. [ 3 ]