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Cosavirus D
''Cosavirus'' is a genus of viruses in the order ''Picornavirales'', in the family ''Picornaviridae''. Human serve as natural hosts. There are 5 species in this genus. It is unclear whether cosaviruses are connected to gastroenteritis in humans. Taxonomy The genus contains the following five species: * ''Cosavirus A'' * ''Cosavirus B'' * ''Cosavirus C ''Cosavirus'' is a genus of viruses in the order ''Picornavirales'', in the family ''Picornaviridae''. Human serve as natural hosts. There are 5 species in this genus. It is unclear whether cosaviruses are connected to gastroenteritis in humans ...'' * '' Cosavirus D'' * '' Cosavirus E'' Structure Viruses in ''Cosavirus'' are non-enveloped, with icosahedral, spherical, and round geometries, and T=pseudo3 symmetry. The diameter is around 30 nm. Genomes are linear and non-segmented, around 7-8kb in length. Life cycle Viral replication is cytoplasmic. Entry into the host cell is achieved by attachment of the virus to hos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viruses
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. Since Dmitri Ivanovsky's 1892 article describing a non-bacterial pathogen infecting tobacco plants and the discovery of the tobacco mosaic virus by Martinus Beijerinck in 1898,Dimmock p. 4 more than 9,000 virus species have been described in detail of the millions of types of viruses in the environment. Viruses are found in almost every ecosystem on Earth and are the most numerous type of biological entity. The study of viruses is known as virology, a subspeciality of microbiology. When infected, a host cell is often forced to rapidly produce thousands of copies of the original virus. When not inside an infected cell or in the process of infecting a cell, viruses exist in the form of independent particles, or ''virions'', consisting of (i) the genetic material, i.e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Picornavirales
''Picornavirales'' is an order of viruses with vertebrate, invertebrate, protist and plant hosts. The name has a dual etymology. First, ''picorna-'' is an acronym for poliovirus, insensitivity to ether, coxsackievirus, orphan virus, rhinovirus, and ribonucleic acid. Secondly, pico-, meaning extremely small, combines with RNA to describe these very small RNA viruses. The order comprises viruses that historically are referred to as picorna-like viruses. Characteristics The families within this order share a number of common features: * The virions are non- enveloped, icosahedral, and about 30 nanometers in diameter. * The capsid has a "pseudo T=3" structure, and is composed of 60 protomers each made of three similar-sized but nonidentical beta barrels. * The genome is made of one or a few single-stranded RNA(s) serving directly as mRNA, without overlapping open reading frames. * The genome has a small protein, VPg, covalently attached to its 5' end, and usually a poly-adenylat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Picornaviridae
Picornaviruses are a group of related nonenveloped RNA viruses which infect vertebrates including fish, mammals, and birds. They are viruses that represent a large family of small, positive-sense, single-stranded RNA viruses with a 30 nm icosahedral capsid. The viruses in this family can cause a range of diseases including the common cold, poliomyelitis, meningitis, hepatitis, and paralysis. Picornaviruses constitute the family ''Picornaviridae'', order ''Picornavirales'', and realm '' Riboviria''. There are 158 species in this family, assigned to 68 genera. Notable examples are genera ''Enterovirus'' (including ''Rhinovirus'' and ''Poliovirus''), ''Aphthovirus'', ''Cardiovirus'', and ''Hepatovirus''. Etymology The name "picornavirus" has a dual etymology. Firstly, the name derives from ''picorna''- which is an acronym for "''p''oliovirus, ''i''nsensitivity to ether, ''c''oxsackievirus, ''o''rphan virus, ''r''hinovirus, and ribo''n''ucleic ''a''cid". Secondly, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastroenteritis
Gastroenteritis, also known as infectious diarrhea and gastro, is an inflammation of the gastrointestinal tract including the stomach and intestine. Symptoms may include diarrhea, vomiting, and abdominal pain. Fever, lack of energy, and dehydration may also occur. This typically lasts less than two weeks. It is not related to influenza, even though in the U.S. it is sometimes called the "stomach flu". Gastroenteritis is usually caused by viruses; however, gut bacteria, parasites, and fungi can also cause gastroenteritis. In children, rotavirus is the most common cause of severe disease. In adults, norovirus and '' Campylobacter'' are common causes. Eating improperly prepared food, drinking contaminated water or close contact with a person who is infected can spread the disease. Treatment is generally the same with or without a definitive diagnosis, so testing to confirm is usually not needed. For young children in impoverished countries, prevention includes hand washing with so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosavirus A
''Cosavirus'' is a genus of viruses in the order ''Picornavirales'', in the family ''Picornaviridae''. Human serve as natural hosts. There are 5 species in this genus. It is unclear whether cosaviruses are connected to gastroenteritis Gastroenteritis, also known as infectious diarrhea and gastro, is an inflammation of the gastrointestinal tract including the stomach and intestine. Symptoms may include diarrhea, vomiting, and abdominal pain. Fever, lack of energy, and dehydra ... in humans. Taxonomy The genus contains the following five species: * '' Cosavirus A'' * '' Cosavirus B'' * '' Cosavirus C'' * '' Cosavirus D'' * '' Cosavirus E'' Structure Viruses in ''Cosavirus'' are non-enveloped, with icosahedral, spherical, and round geometries, and T=pseudo3 symmetry. The diameter is around 30 nm. Genomes are linear and non-segmented, around 7-8kb in length. Life cycle Viral replication is cytoplasmic. Entry into the host cell is achieved by attachment of the virus to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosavirus B
''Cosavirus'' is a genus of viruses in the order ''Picornavirales'', in the family ''Picornaviridae''. Human serve as natural hosts. There are 5 species in this genus. It is unclear whether cosaviruses are connected to gastroenteritis in humans. Taxonomy The genus contains the following five species: * ''Cosavirus A ''Cosavirus'' is a genus of viruses in the order ''Picornavirales'', in the family ''Picornaviridae''. Human serve as natural hosts. There are 5 species in this genus. It is unclear whether cosaviruses are connected to gastroenteritis Gastr ...'' * '' Cosavirus B'' * '' Cosavirus C'' * '' Cosavirus D'' * '' Cosavirus E'' Structure Viruses in ''Cosavirus'' are non-enveloped, with icosahedral, spherical, and round geometries, and T=pseudo3 symmetry. The diameter is around 30 nm. Genomes are linear and non-segmented, around 7-8kb in length. Life cycle Viral replication is cytoplasmic. Entry into the host cell is achieved by attachment of the virus to h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosavirus C
''Cosavirus'' is a genus of viruses in the order ''Picornavirales'', in the family ''Picornaviridae''. Human serve as natural hosts. There are 5 species in this genus. It is unclear whether cosaviruses are connected to gastroenteritis in humans. Taxonomy The genus contains the following five species: * ''Cosavirus A'' * ''Cosavirus B ''Cosavirus'' is a genus of viruses in the order ''Picornavirales'', in the family ''Picornaviridae''. Human serve as natural hosts. There are 5 species in this genus. It is unclear whether cosaviruses are connected to gastroenteritis in humans ...'' * '' Cosavirus C'' * '' Cosavirus D'' * '' Cosavirus E'' Structure Viruses in ''Cosavirus'' are non-enveloped, with icosahedral, spherical, and round geometries, and T=pseudo3 symmetry. The diameter is around 30 nm. Genomes are linear and non-segmented, around 7-8kb in length. Life cycle Viral replication is cytoplasmic. Entry into the host cell is achieved by attachment of the virus to ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosavirus D
''Cosavirus'' is a genus of viruses in the order ''Picornavirales'', in the family ''Picornaviridae''. Human serve as natural hosts. There are 5 species in this genus. It is unclear whether cosaviruses are connected to gastroenteritis in humans. Taxonomy The genus contains the following five species: * ''Cosavirus A'' * ''Cosavirus B'' * ''Cosavirus C ''Cosavirus'' is a genus of viruses in the order ''Picornavirales'', in the family ''Picornaviridae''. Human serve as natural hosts. There are 5 species in this genus. It is unclear whether cosaviruses are connected to gastroenteritis in humans ...'' * '' Cosavirus D'' * '' Cosavirus E'' Structure Viruses in ''Cosavirus'' are non-enveloped, with icosahedral, spherical, and round geometries, and T=pseudo3 symmetry. The diameter is around 30 nm. Genomes are linear and non-segmented, around 7-8kb in length. Life cycle Viral replication is cytoplasmic. Entry into the host cell is achieved by attachment of the virus to hos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosavirus E
''Cosavirus'' is a genus of viruses in the order ''Picornavirales'', in the family ''Picornaviridae''. Human serve as natural hosts. There are 5 species in this genus. It is unclear whether cosaviruses are connected to gastroenteritis in humans. Taxonomy The genus contains the following five species: * ''Cosavirus A'' * ''Cosavirus B'' * ''Cosavirus C'' * ''Cosavirus D ''Cosavirus'' is a genus of viruses in the order ''Picornavirales'', in the family ''Picornaviridae''. Human serve as natural hosts. There are 5 species in this genus. It is unclear whether cosaviruses are connected to gastroenteritis in humans ...'' * '' Cosavirus E'' Structure Viruses in ''Cosavirus'' are non-enveloped, with icosahedral, spherical, and round geometries, and T=pseudo3 symmetry. The diameter is around 30 nm. Genomes are linear and non-segmented, around 7-8kb in length. Life cycle Viral replication is cytoplasmic. Entry into the host cell is achieved by attachment of the virus to host ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
