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Microbiology Reference Libraries

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SARS Coronavirus
2011-02-23 20:52:43

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. It causes severe illness marked initially by systemic symptoms of muscle pain, headache, fever, followed in 2-10 days by the onset of respiratory...

Rotavirus
2011-02-23 20:42:46

Rotavirus is the most common cause of diarrhea among infants and young children and is one of several viruses that cause the stomach flu. It is in the family Reoviridae and is a genus of double-stranded RNA. Most children have been infected by the age of five. Each infection builds on previous immunity and thus subsequent infections are less severe and adults are rarely affected. The fives...

Rinderpest
2011-02-23 20:38:02

Rinderpest (also cattle plague) is an infectious viral disease of cattle, domestic buffalo, and some species of wildlife. It is characterized by fever, oral erosions, diarrhea, lymphoid necrosis, and high mortality. The last confirmed case was in 2001. In 2011 it should be announced that a global eradication of rinderpest was complete. The term comes from the German language meaning...

Rift Valley Fever
2011-02-23 20:29:04

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 several million people were infected and thousands died during a violent epidemic. In 1998 the virus killed 400 Kenyans and in 2000 an outbreak...

Respiratory syncytial virus
2011-02-23 17:56:27

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 prophylactic medication. During winter months in temperate climates there is an annual epidemic. Infection in tropical climates is most...

Reoviridae
2011-02-23 17:51:52

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 viruses. Orphan virus means that a virus that is not associated with any known disease. Reovirus infection occurs often in humans, but cases are...

Rabies Virus
2011-02-23 17:45:51

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 genome with negative-sense. All replication takes place in the cytoplasm. The virus has a bullet-like shape. Rabies enters the host cells through...

Potato Virus Y
2011-02-23 17:36:42

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 symptoms and "˜potato tuber necrotic ringspot disease' is the worst. Ringspot renders potatoes unmarketable and can therefore result in a major...

Polyomavirus
2011-02-23 17:31:48

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 humans and animals. Polyomaviruses are DNA-based, small, and icosahedral in shape. They can potentially cause tumors and often persist as latent...

Polydnaviruses
2011-02-23 17:28:19

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 double-stranded superhelical DNA packaged in capsid proteins and a double layer or single layer envelope. The full genome of the virus is...

Word of the Day
donative
  • A gift; a largess; a gratuity; a present; a dole.
The word 'donative' comes from a Latin word meaning 'to give'.
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