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Tropical diseases Reference Libraries

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Yellow Fever
2011-03-04 17:38:30

Yellow fever is an acute viral hemorrhagic disease with a 40 to 50 nm enveloped RNA virus with positive sense of the Flaviviridae family. It is transmitted by the bite of female mosquitoes and is found in tropical and subtropical areas in South America and Africa, but not in Asia. Primates and a few kinds of mosquitoes are the only known hosts. The origin of the disease is most likely Africa....

West Nile Virus
2011-02-25 18:53:25

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, bats, and other mammals. Humans are generally infected through the bites of mosquitoes and about 90% of West Nile Virus infections are without...

Marburg virus
2011-02-17 16:29:01

Marburg virus, or Marburg, is the standard name for the genus of viruses Marburgvirus which contains the species, Lake Victoria Marburgvirus. It causes Marburg Hemorrhagic Fever (MHF) which originated with primates. It originated in Africa and can infect humans and primates. It is in the same taxonomic family as Ebola and both are identical structurally although they elicit different...

Lassa Fever
2011-02-17 15:14:03

Lassa fever, first described in 1969 in Lassa, is an acute viral hemorrhagic fever. Clinical cases were known a decade before this but were not associated with this viral pathogen. It is endemic in West African countries and causes approximately 5,000 deaths. The Natal Multimammate Mouse is the primary animal host. The rodent is a source of protein but the virus is usually transmitted by...

Dengue Fever
2011-01-12 16:33:15

Dengue fever and dengue hemorrhagic fever (DHF), caused by the dengue virus, is among the spectrum of acute febrile tropical disease and is transmitted by mosquitoes. Occurring mainly in the tropics it can be life threatening and is caused by four closely related virus stereotypes of the genus Flavivirus. It was identified and named in 1779. It has a nickname of "breakbone fever" due to it...

Flavivirus
2011-01-11 13:44:52

Flavivirus is a genus of the family Flaviviridae. This genus includes the West Nile Virus, Dengue Virus, Tick-borne Encephalitis virus, yellow fever virus, and quite a few others. Flaviviruses get their name from the yellow fever virus. Flavus means yellow in Latin. Yellow fever was named because if caused yellow jaundice in victims. Mosquitoes and ticks transmit these viruses by biting...

Filoviridae
2011-01-11 13:37:27

Filoviridae family of viruses belongs to the order of Mononegavirales. Filoviruses cause hemorrhagic fever often with fatal bleeding and coagulating abnormalities. The name comes from the Latin word filum, which alludes to the thread-like appearance of virus particles. They are single stranded negative sense RNA viruses that target primates. The two genera are Ebola-Reston virus and Marburg...

2011-01-11 10:59:51

Ebolavirus (EBOV), a viral genus, is the disease Ebola hemorrhagic fever (EHF), a viral hemorrhagic fever (VHF). The virus gets its name from the Ebola River Valley in the Democratic Republic of the Congo where the first outbreak occurred in 1976. The virus was obscure until 1989 when several widely publicized outbreaks occurred among monkeys in the United States. The virus disrupts the...

Asian tiger mosquito
2005-09-12 09:50:15

Aedes albopictus (Family Culicidae), the Asian Tiger Mosquito or Forest Day Mosquito, is characterized by its black and white striped legs and small, black and white body. It was native to south-east Asia, and occupied a habitat that spread from Madagascar eastward to New Guinea, and north to the latitude of Korea. The typical member of the Aedes albopictus has a length of about 5 mm. As...

Mosquito
2005-08-25 10:14:14

The mosquito is a member of the family Culicidae. These insects have a pair of scaled wings, a pair of halteres, a slender body, and long legs. Only the females of most mosquito species suck blood from other animals. Size varies but is rarely greater than 0.6 inch (15 mm). Mosquitoes weigh only about 0.03 to 0.04 grain (2 to 2.5 mg). They can fly at about 0.9 to 1.6 mph (1.5 to 2.5 km/h) and...

Word of the Day
sough
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'
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