|
Langat Virus
Langat virus (LGTV) is a virus of the genus ''Flavivirus''. The virus was first isolated in Malaysia in 1956 from a hard tick of the Ixodes genus. This virus is antigenically related to Omsk hemorrhagic fever Omsk hemorrhagic fever is a viral hemorrhagic fever caused by a Flavivirus. It was found in Siberia and was named for an outbreak in the city of Omsk. First records of the new virus appeared around 1940–1943. Signs and symptoms There are a nu ... virus, Kyasanur forest disease virus, Alkhurma virus, Louping ill virus and other viruses of the tick-borne encephalitis virus (TBEV) complex. The Langat virus does not pose a significant epidemiological threat in comparison with TBEV. There are no known cases of human diseases associated with LGTV. The Malaysian strain (LGT strain TP21, also known as the Yelantsev virus) is naturally attenuated and induces neutralizing antibodies to tick-borne encephalitis virus (TBEV) and protection against other TBEV complex viruses i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flavivirus
''Flavivirus'' is a genus of positive-strand RNA viruses in the family ''Flaviviridae''. The genus includes the West Nile virus, dengue virus, tick-borne encephalitis virus, yellow fever virus, Zika virus and several other viruses which may cause encephalitis, as well as insect-specific flaviviruses (ISFs) such as cell fusing agent virus (CFAV), Palm Creek virus (PCV), and Parramatta River virus (PaRV). While dual-host flaviviruses can infect vertebrates as well as arthropods, insect-specific flaviviruses are restricted to their competent arthropods. The means by which flaviviruses establish persistent infection in their competent vectors and cause disease in humans depends upon several virus-host interactions, including the intricate interplay between flavivirus-encoded immune antagonists and the host antiviral innate immune effector molecules. Flaviviruses are named for the yellow fever virus; the word ''flavus'' means 'yellow' in Latin, and yellow fever in turn is named from i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ixodes
''Ixodes'' is a genus of hard-bodied ticks (family Ixodidae). It includes important disease vectors of animals and humans (tick-borne disease), and some species (notably ''Ixodes holocyclus'') inject toxins that can cause paralysis. Some ticks in this genus may transmit the pathogenic bacterium ''Borrelia burgdorferi'' responsible for causing Lyme disease. Additional organisms that may be transmitted by ''Ixodes'' are parasites from the genus ''Babesia'', which cause babesiosis, and bacteria from the related genus ''Anaplasma'', which cause anaplasmosis. Species These species are recognised within the genus ''Ixodes'': *''Ixodes abrocomae'' Lahille, 1917 *''Ixodes acer'' Apanaskevich & Schenk, 2020 *''Ixodes acuminatus'' Neumann, 1901 *''Ixodes acutitarsus'' (Karsch, 1880) *''Ixodes affinis'' Neumann, 1899 *''Ixodes albignaci'' Uilenberg & Hoogstraal, 1969 *''Ixodes alluaudi'' Neumann, 1913 *'' Ixodes amarali'' Fonseca, 1935 *'' Ixodes amersoni'' Kohls, 1966 *'' Ixodes anat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Omsk Hemorrhagic Fever
Omsk hemorrhagic fever is a viral hemorrhagic fever caused by a Flavivirus. It was found in Siberia and was named for an outbreak in the city of Omsk. First records of the new virus appeared around 1940–1943. Signs and symptoms There are a number of symptoms of the virus. In the first 1–8 days the first phase begins. The symptoms in this phase are: * chills * headache *pain in the lower and upper extremities and severe prostration *a rash on the soft palate *swollen glands in the neck *appearance of blood in the eyes ( conjunctival suffusion) *dehydration *hypotension *gastrointestinal symptoms (symptoms relating to the stomach and intestines) *patients may also experience effects on the central nervous system In 1–2 weeks, some people may recover, although others might not. They might experience a focal hemorrhage in mucosa of gingival, uterus, and lungs, a papulovesicular rash on the soft palate, cervical lymphadenopathy (it occurs in the neck which that enlarges the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alkhurma Virus
Alkhurma virus (ALKV) ( ar, فيروس الخرمة) is a zoonotic virus of the ''Flaviviridae'' virus family (class IV). ALKV causes Alkhurma hemorrhagic fever (AHF), or alternatively termed as Alkhurma hemorrhagic fever virus, and is mainly based in Saudi Arabia. Signs and symptoms After an incubation period lasting as short as 2–4 days or as long as 8 days, people with AHF develop symptoms including fever, headache, joint pain, muscle pain, vomiting, a loss of appetite, feeling of great discomfort, and chills. Less than 10% of people develop severe neurologic, central nervous system, and hemorrhagic symptoms, such as purpura, epitasis, hallucinations, disorientation, convulsions, and life-threatening epistaxis. Elevated liver enzymes, leukopenia, proteinuria and thrombocytopenia, which leads to hemorrhagic fever and encephalitis (which can result in death), have been found in hospitalized patients. Taxonomy The ALKV prototype strain 1776 was retrieved from a person in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tick-borne Encephalitis Virus
Tick-borne encephalitis virus (TBEV) is a positive-strand RNA virus associated with tick-borne encephalitis in the genus '' Flavivirus''. Classification Taxonomy TBEV is a member of the genus '' Flavivirus''. Other close relatives, members of the TBEV serocomplex, include ''Omsk hemorrhagic fever virus'', '' Kyasanur Forest disease virus'', Alkhurma virus, '' Louping ill virus'' and '' Langat virus''. Subtypes TBEV has three subtypes: * Western European subtype (formerly Central European encephalitis virus, CEEV; principal tick vector: ''Ixodes ricinus''); * Siberian subtype (formerly West Siberian virus; principal tick vector: '' Ixodes persulcatus''); * Far Eastern subtype (formerly Russian Spring Summer encephalitis virus, RSSEV; principal tick vector: ''Ixodes persulcatus''). The reference strain is the Sofjin strain. Virology Structure TBEV is a positive-sense single-stranded RNA virus, contained in a 40-60 nm spherical, enveloped capsid. The TBEV genome ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tick-borne Encephalitis Virus
Tick-borne encephalitis virus (TBEV) is a positive-strand RNA virus associated with tick-borne encephalitis in the genus '' Flavivirus''. Classification Taxonomy TBEV is a member of the genus '' Flavivirus''. Other close relatives, members of the TBEV serocomplex, include ''Omsk hemorrhagic fever virus'', '' Kyasanur Forest disease virus'', Alkhurma virus, '' Louping ill virus'' and '' Langat virus''. Subtypes TBEV has three subtypes: * Western European subtype (formerly Central European encephalitis virus, CEEV; principal tick vector: ''Ixodes ricinus''); * Siberian subtype (formerly West Siberian virus; principal tick vector: '' Ixodes persulcatus''); * Far Eastern subtype (formerly Russian Spring Summer encephalitis virus, RSSEV; principal tick vector: ''Ixodes persulcatus''). The reference strain is the Sofjin strain. Virology Structure TBEV is a positive-sense single-stranded RNA virus, contained in a 40-60 nm spherical, enveloped capsid. The TBEV genome ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Ixodes")
