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Orthonairovirus
''Orthonairovirus'' is a genus of viruses in the family ''Nairoviridae'' of the order Bunyavirales that include viruses with circular, RNA virus#Group V - negative-sense ssRNA viruses, negative-sense single stranded RNA. It got its name from the Nairobi sheep disease that affects the gastrointestinal tracts of sheep and goats. The vast majority, and perhaps all viruses in this genus are arbovirus, tick-borne viruses that can have human or other vertebrate hosts.Crabtree, Mary B., Rosemary Sang, and Barry R. Miller. "Kupe Virus, a New Virus in the Family Bunyaviridae, Genus Nairovirus, Kenya." Emerging Infectious Diseases 15 (2009): 147–54. Structure The Virus#Structure, virions for viruses in this genus have a spherical shape."Nairovirus." Nairovirus. Viral Zone. . They range in size from about 80–120 nm in diameter, with 50% of their weight attributed to proteins and 20–30% of their weight attributed to lipids. The ribonucleocapsid is filamentous, having a leng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kasokero Virus
''Kasokero orthonairovirus'' is a species of virus in the genus ''Orthonairovirus''. Its only known host is the fruit bat ''Rousettus aegyptiacus''. The virus takes its name from the Kasokero Cave in Uganda }), is a landlocked country in East Africa East Africa, Eastern Africa, or East of Africa, is the eastern subregion of the African continent. In the United Nations Statistics Division scheme of geographic regions, 10-11-(16*) territor ..., where it was first collected. References {{Taxonbar, from1=Q29002585, from2=Q61116521 Nairoviridae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nairobi Sheep Disease Virus
The ''Nairobi sheep disease orthonairovirus'' (NSDV), also known as ''Ganjam virus'' is a species in the genus ''Orthonairovirus'' belonging to the Nairobi sheep disease serogroup. NSDV is enzootic, becoming epizootic when denser populations of susceptible animals are exposed to infection. NSDV's known hosts belong to the hard tick family Ixodidae, including ''Rhipicephalus appendiculatus'', and '' Amblyomma variegatum'', and afflict sheep and goats naturally. The virus is in the family Nairoviridae and order Bunyavirales. Symptoms Symptoms of an animal infected with NSDV may include fever, reduction in white blood cells, rapid respiration, anorexia, profound depression, diarrhea, drop in body temperature, premature abortion, and eventually death. History NSDV was first recognised in 1917 as the causative agent of a disease that was affecting sheep transported from the Maasai region of Kenya for sale in the Nairobi livestock markets, where a 70% mortality rate was recorded for lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nairoviridae
''Nairoviridae'' is a family of viruses in the order ''Bunyavirales ''Bunyavirales'' is an order of segmented negative-strand RNA viruses with mainly tripartite genomes. Member viruses infect arthropods, plants, protozoans, and vertebrates. It is the only order in the class ''Ellioviricetes''. The name ''Bunyavi ...''. Its name derives from Nairobi sheep disease, caused by the member '' Nairobi sheep disease orthonairovirus''. Taxonomy The family contains the following genera: *'' Norwavirus'' *'' Ocetevirus'' *'' Orthonairovirus'' *'' Sabavirus'' *'' Shaspivirus'' *'' Striwavirus'' *'' Xinspivirus'' References External links ICTV Report: ''Nairoviridae'' {{Taxonbar, from=Q29001081 Virus families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arbovirus
Arbovirus is an informal name for any virus that is transmitted by arthropod vectors. The term ''arbovirus'' is a portmanteau word (''ar''thropod-''bo''rne ''virus''). ''Tibovirus'' (''ti''ck-''bo''rne ''virus'') is sometimes used to more specifically describe viruses transmitted by ticks, a superorder within the arthropods. Arboviruses can affect both animals (including humans) and plants. In humans, symptoms of arbovirus infection generally occur 3–15 days after exposure to the virus and last three or four days. The most common clinical features of infection are fever, headache, and malaise, but encephalitis and viral hemorrhagic fever may also occur. Signs and symptoms The incubation period – the time between when infection occurs and when symptoms appear – varies from virus to virus, but is usually limited between 2 and 15 days for arboviruses. The majority of infections, however, are asymptomatic. Among cases in which symptoms do appear, symptoms tend to be non-s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argasidae
The Argasidae are the family of soft ticks, one of the three families of ticks. The family contains 193 species, although the composition of the genera is less certain, and more study is needed before the genera can become stable. The currently accepted genera are '' Antricola'', '' Argas'', '' Nothoaspis'', ''Ornithodoros'', and '' Otobius''. The Argasidae are very common in South Asia, along with 96 other species of ticks, making South Asia the region with the highest biodiversity of ticks worldwide. Soft ticks are resistant to desiccation and can live for several years in arid conditions. Physical characteristics Soft ticks lack the hard scutum present in the hard ticks (Ixodidae). The gnathosoma (or capitulum, the mouthparts-bearing structure) is located on the underside of the animal's body and is not readily visible, while in the Ixodidae, the gnathosoma projects forward from the body. The lateral edges of the body are rounded. See also *Ticks of domestic animals Ticks of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ixodidae
The Ixodidae are the family of hard ticks or scale ticks, one of the three families of ticks, consisting of over 700 species. They are known as 'hard ticks' because they have a scutum or hard shield, which the other major family of ticks, the 'soft ticks' (Argasidae), lack. They are ectoparasites of a wide range of host species, and some are vectors of pathogens that can cause human disease. Description They are distinguished from the Argasidae by the presence of a scutum. In both the nymph and the adult, a prominent gnathosoma (or capitulum, mouth and feeding parts) projects forward from the animal's body; in the Argasidae, conversely, the gnathosoma is concealed beneath the body. They differ, too, in their lifecycle; Ixodidae that attach to a host bite painlessly and are generally unnoticed, and they remain in place until they engorge and are ready to change their skin; this process may take days or weeks. Some species drop off the host to moult in a safe place, whereas others r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erve Virus
Erve (locally ) is a ''comune'' (municipality) in the Province of Lecco in the Italian region Lombardy, located about northeast of Milan and about southeast of Lecco. As of 31 December 2004, it had a population of 758 and an area of .All demographics and other statistics: Italian statistical institute Istat. Erve borders the following municipalities: Brumano, Calolziocorte, Carenno, Lecco, Valsecca and Vercurago Vercurago ( Bergamasque: ) is a ''comune'' (municipality) in the Province of Lecco in the Italian region Lombardy, located about northeast of Milan and about southeast of Lecco. Vercurago borders the following municipalities: Calolziocorte, Erv .... Demographic evolution Colors= id:lightgrey value:gray(0.9) id:darkgrey value:gray(0.8) id:sfondo value:rgb(1,1,1) id:barra value:rgb(0.6,0.7,0.8) ImageSize = width:455 height:303 PlotArea = left:50 bottom:50 top:30 right:30 DateFormat = x.y Period = from:0 till:2000 TimeAxis = orientation:vertical Al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthropod
Arthropods (, (gen. ποδός)) are invertebrate animals with an exoskeleton, a Segmentation (biology), segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and Arthropod cuticle, cuticle made of chitin, often Mineralization (biology), mineralised with calcium carbonate. The arthropod body plan consists of segments, each with a pair of appendages. Arthropods are bilaterally symmetrical and their body possesses an exoskeleton, external skeleton. In order to keep growing, they must go through stages of moulting, a process by which they shed their exoskeleton to reveal a new one. Some species have wings. They are an extremely diverse group, with up to 10 million species. The haemocoel, an arthropod's internal cavity, through which its haemolymph – analogue of blood – circulates, accommodates its interior Organ (anatomy), organs; it has an open circulatory system. Like their exteriors, the internal or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Host (biology)
In biology and medicine, a host is a larger organism that harbours a smaller organism; whether a parasite, parasitic, a mutualism (biology), mutualistic, or a commensalism, commensalist ''guest'' (symbiont). The guest is typically provided with nourishment and shelter. Examples include animals playing host to parasitic worms (e.g. nematodes), cell (biology), cells harbouring pathogenic (disease-causing) viruses, a Fabaceae, bean plant hosting mutualistic (helpful) Rhizobia, nitrogen-fixing bacteria. More specifically in botany, a host plant supplies nutrient, food resources to micropredators, which have an evolutionarily stable strategy, evolutionarily stable relationship with their hosts similar to ectoparasitism. The host range is the collection of hosts that an organism can use as a partner. Symbiosis Symbiosis spans a wide variety of possible relationships between organisms, differing in their permanence and their effects on the two parties. If one of the partners in an ass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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