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Viruses

Strawberry vein banding virus (SVBV) is a plant pathogenic virus and a member of the family Caulimoviridae. It was first described by Frazier after differential aphid transmission to susceptible wild strawberries. He identified suitable virus indicator...

Rubella virus is the cause of congenital rubella syndrome when infection occurs during the first weeks of pregnancy. Humans are the only known host of this virus. It is the only member of the genus of Rubivirus and belongs to the family of Togaviridae....

West Nile virus (WNV) is a virus of the family Flaviviridae. It is part of the Japanese encephalitis antigenic complex of viruses and is found in both tropical and temperate regions. It primarily infects birds but can infect humans, horses, dogs, cats,...

A virus is a small infectious agent that replicates inside the living cells of organisms. It is a small infectious agent that can replicate only inside the living cells of organisms. Most are too small to be seen by anything but a microscope and they i...

Vesicular stomatitis virus (VSV) is a virus in the family Rhabdoviridae. Rabies is in the same family. VSV infects insects and animals and is important to farmers in certain regions of the world where it can infect cattle. It is a common laboratory vir...

Venezuelan equine encephalitis virus is a mosquito-borne viral pathogen that causes Venezuelan equine encephalitis or encephalomyelitis (VEE). It can affect all equine species, such as horses, donkeys, and zebras. Equines may suddenly die or show progr...

Vaccinia virus (VACV or VV) is a large, complex, enveloped virus belonging to the poxvirus family. It is well-known for its role in eradicating smallpox. It was the first human disease to to successfully be eradicated by science. The World Health Organ...

Turnip mosaic virus (TuMV) is a Potyvirus of the family Potyviridae which causes diseases in cruciferous plants. The virus is spread by 40-50 species of aphids in a non-persistent manner. Infected plants show symptoms such as a chlorotic local lesions,...

Tobacco ringspot virus (TRSV) is a plant pathogenic virus in the plant virus family Comoviridae. It of the type species Comoviridae Genus Nepovirus. Nepoviruses are transmitted between plants by nematodes. It is easily transmitted by sap inoculation an...

Simian immunodeficiency virus (SIV), also known as African Green Monkey virus, is a retrovirus able to infect at least 33 species of African primates. SIV has been present in monkeys and apes for at least 32,000 years, probably longer. Strains from two...

The Semliki Forest virus was isolated from mosquitoes in the Semliki Forest in 1942. It can cause disease in both animals and man. It's an Alphavirus found in central, eastern, and southern Africa. It is a positive-stranded RNA virus. It is spread mai...

The SARS coronavirus is the virus that causes severe acute respiratory syndrome (SARS). In 2003 the World Health Organization issued a press release stating that the coronavirus identified by a number of laboratories was the official cause of SARS. ...

Rift Valley Fever (RVF) is a viral zoonosis that causes fever. It is spread through infected mosquitoes. It was first reported in 1915 in Kenya were it infected livestock. Outbreaks occur across sub-Saharan Africa, and in the "˜77-"˜78 outbreak sever...

Respiratory syncytial virus (RSV) causes respiratory tract infections and is a major cause of lower respiratory tract infection and hospital visits during infancy and childhood. For premature infants and infants with congenital heart disease there is a...

Reoviridae is a family of viruses that can affect the gastrointestinal system (such as Rotavirus) and respiratory tract. These viruses have genomes consisting of segmented, double-stranded RNA. The name is derived from respiratory enteric orphan viruse...

The rabies virus is neurotropic virus, transmissible through the saliva of animals, that causes fatal disease in human and animals. Rabies is the type species of the Lyssavirus genus of Rhabdovirdae family. They are enveloped and single stranded RNA ge...

Potato virus Y (PVY) is a plant pathogenic virus of the family Potyviridae. It is one of the most important plant viruses affecting potatoes. Infection results in various symptoms depending on the strain. Production loss is the most mild of the symptom...

Polyomavirus is the sole genus of viruses within the family Polyomaviridae. Ludwik Gross discovered the first polyomavirus, Murine polyomavirus, in 1963. Many polyomaviruses infect birds and mammals and have been extensively studied as tumor viruses in...

The Polydnaviruses (PDV) are a family of insect viruses that contain two genera: Ichnoviruses (IV) and Bracoviruses (BV). The ichnoviruses occur in ichneumonid wasps and bracoviruses in braconid wasps. The virus is composed of multiple segments of doub...

Poliovirus, the causative agent of poliomyelitis and a member of the family of Picornaviridae, is a human enterovirus. It is composed of an RNA genome that is a single-stranded positive-sense RNA. It was first isolate in 1909 and was published in 1981....