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Lutzomyia (Lutzomyia)
''Lutzomyia'' is a genus of Phlebotominae, phlebotomine Sandfly, sand flies consisting of nearly 400 species, at least 33 of which have medical importance as Vector (epidemiology), vectors of human disease. Species of the genus ''Lutzomyia'' are found only in the New World, distributed in southern areas of the Nearctic realm, Nearctic and throughout the Neotropical realm. ''Lutzomyia'' is one of the two genera of the subfamily Phlebotominae to transmit the Leishmania parasite, with the other being ''Phlebotomus'', found only in the Old World. ''Lutzomyia'' sand flies also serve as vectors for the bacterial Oroya fever, Carrion's disease and a number of arboviruses. Evolution The genus, named after Adolfo Lutz, is known from the extinct Burdigalian (20–15 Mya (unit), mya) species ''Lutzomyia adiketis'' found as a fossil in Dominican amber on the island of Hispaniola. It is thought that species in the genus ''Lutzomyia'' all originated in the lowland forests to the east of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burdigalian
The Burdigalian is, in the geologic timescale, an age (geology), age or stage (stratigraphy), stage in the early Miocene. It spans the time between 20.43 ± 0.05 annum, Ma and 15.97 ± 0.05 Ma (million years ago). Preceded by the Aquitanian (stage), Aquitanian, the Burdigalian was the first and longest warming period of the MioceneEdward Petuch, Ph.D. Florida Atlantic University, Department of Geosciences. and is succeeded by the Langhian. Stratigraphic definition The name Burdigalian comes from ''Burdigala'', the Latin name for the city of Bordeaux, France. The Burdigalian Stage was introduced in scientific literature by Charles Depéret in 1892. The base of the Burdigalian is at the first appearance of foram species ''Globigerinoides altiaperturus'' and the top of magnetic chronozone C6An. , an official GSSP for the Burdigalian had not yet been assigned. The top of the Burdigalian (the base of the Langhian) is defined by the first appearance of foram species ''Praeorbulina gl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandfly
Sandfly (or sand fly) is a colloquial name for any species or genus of flying, biting, blood-sucking dipteran (fly) encountered in sandy areas. In the United States, ''sandfly'' may refer to certain horse flies that are also known as "greenheads" (family Tabanidae), or to members of the family Ceratopogonidae. The bites usually result in a small, intensely itchy bump or welt, the strength of which intensifies over a period of 5-7 days before dissipating. Moderate relief is achieved with varying success through the application of over the counter products such as Benadryl (ingested) or an analgesic cream such as After Bite (applied topically). Outside the United States, ''sandfly'' may refer to members of the subfamily Phlebotominae within the Psychodidae. Biting midges (Ceratopogonidae) are sometimes called sandflies or no-see-ums (no-see-em, noseeum). New Zealand sandflies are in the genus ''Austrosimulium'', a type of black fly. In the various sorts of sandfly only the fema ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adolfo Lutz
Adolfo Lutz (6 October 1855 – 18 December 1940) was a Brazilian physician, father of tropical medicine and medical zoology in Brazil, and a pioneer epidemiologist and researcher in infectious diseases. Life Lutz was born in Rio de Janeiro, on December 18, 1855, son of Gustav Lutz († 1891) and Mathilde Oberteuffer, a family of Bern. He studied medicine in Switzerland, graduating in 1879 at the University of Bern. After graduation he went on to study experimental medicine techniques in London, England (where he studied with Joseph Lister, 1827–1912), Leipzig, Germany, Vienna, Austria, Prague and Paris, France (where he studied with Louis Pasteur, 1822–1895). After his retirement in 1908, Dr. Adolfo Lutz moved to Rio de Janeiro, where he worked for 32 more years, until his death, on October 6, 1940, at the Instituto Oswaldo Cruz, created by another great Brazilian physician and epidemiologist, Oswaldo Cruz, and where he was a director of the Institute of Experimental Patholo ... [...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] |
Oroya Fever
''Oroya'' is a genus of cacti (family Cactaceae), originating from Peru. The name comes from the Peruvian town of la Oroya La Oroya is a city on the River Mantaro in central Peru. It is situated on the Andes some 176 km east-north-east of the national capital, Lima, and is capital of the Yauli Province. La Oroya is the location of a smelting operation that ea ... where the first plants were discovered. ''Oroya'' species are solitary with a globular form and many ribs with usually-dense pectinate spines. Usually up to high, and in diameter. Small flowers (up to 1 cm in diameter) grow along a ring near the top of the plant. The flowers are yellow, but their stems are often pink or red. Species References and external links External links Cactiguide.com: photos of ''Oroya'' Trichocereeae Cacti of South America Endemic flora of Peru Cactoideae genera {{Cactus-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Old World
The "Old World" is a term for Afro-Eurasia that originated in Europe , after Europeans became aware of the existence of the Americas. It is used to contrast the continents of Africa, Europe, and Asia, which were previously thought of by their inhabitants as comprising the entire world, with the "New World", a term for the newly encountered lands of the Western Hemisphere, particularly the Americas. Etymology In the context of archaeology and world history, the term "Old World" includes those parts of the world which were in (indirect) cultural contact from the Bronze Age onwards, resulting in the parallel development of the early civilizations, mostly in the temperate zone between roughly the 45th and 25th parallels north, in the area of the Mediterranean, including North Africa. It also included Mesopotamia, the Persian plateau, the Indian subcontinent, China, and parts of Sub-Saharan Africa. These regions were connected via the Silk Road trade route, and they have a p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phlebotomus
''Phlebotomus'' is a genus of " sand flies" in the Diptera family Psychodidae. In the past, they have sometimes been considered to belong in a separate family, Phlebotomidae, but this alternative classification has not gained wide acceptance. Epidemiology In the Old World, ''Phlebotomus'' sand flies are primarily responsible for the transmission of leishmaniasis, an important parasitic disease, while transmission in the New World, is generally via sand flies of the genus ''Lutzomyia''. The protozoan parasite itself is a species of the genus ''Leishmania''. Leishmaniasis normally finds a mammalian reservoir in rodents and other small animals such as canids ( canine leishmaniasis) and hyraxes. The female sand fly carries the ''Leishmania'' protozoa from infected animals after feeding, thus transmitting the disease, while the male feeds on plant nectar. The parasite ''Leishmania donovani'' is the main causative agent of visceral leishmaniasis (VL) in India, Nepal, and Bangladesh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leishmania
''Leishmania'' is a parasitic protozoan, a single-celled organism of the genus '' Leishmania'' that are responsible for the disease leishmaniasis. They are spread by sandflies of the genus ''Phlebotomus'' in the Old World, and of the genus ''Lutzomyia'' in the New World. At least 93 sandfly species are proven or probable vectors worldwide.WHO (2010) Annual report. Geneva Their primary hosts are vertebrates; ''Leishmania'' commonly infects hyraxes, canids, rodents, and humans. History Members of an ancient genus of the ''Leishmania'' parasite, ''Paleoleishmania'', have been detected in fossilized sand flies dating back to the early Cretaceous period. The first written reference to the conspicuous symptoms of cutaneous leishmaniasis surfaced in the Paleotropics within oriental texts dating back to the 7th century BC (allegedly transcribed from sources several hundred years older, between 1500 and 2000 BC). Due to its broad and persistent prevalence throughout antiquity as a mys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotropical Realm
The Neotropical realm is one of the eight biogeographic realms constituting Earth's land surface. Physically, it includes the tropical terrestrial ecoregions of the Americas and the entire South American temperate zone. Definition In biogeography, the Neotropic or Neotropical realm is one of the eight terrestrial realms. This realm includes South America, Central America, the Caribbean islands, and southern North America. In Mexico, the Yucatán Peninsula and southern lowlands, and most of the east and west coastlines, including the southern tip of the Baja California Peninsula are Neotropical. In the United States southern Florida and coastal Central Florida are considered Neotropical. The realm also includes temperate southern South America. In contrast, the Neotropical Floristic Kingdom excludes southernmost South America, which instead is placed in the Antarctic kingdom. The Neotropic is delimited by similarities in fauna or flora. Its fauna and flora are distinct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nearctic Realm
The Nearctic realm is one of the eight biogeographic realms constituting the Earth's land surface. The Nearctic realm covers most of North America, including Greenland, Central Florida, and the highlands of Mexico. The parts of North America that are not in the Nearctic realm are Eastern Mexico, Southern Florida, coastal Central Florida, Central America, and the Caribbean islands, which, together with South America, are part of the Neotropical realm. Major ecological regions The World Wildlife Fund (WWF) divides the Nearctic into four bioregions, defined as "geographic clusters of ecoregions that may span several habitat types, but have strong biogeographic affinities, particularly at taxonomic levels higher than the species level (genus, family)." Canadian Shield The Canadian Shield bioregion extends across the northern portion of the continent, from the Aleutian Islands to Newfoundland. It includes the Nearctic's Arctic Tundra and Boreal forest ecoregions. In terms of flo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New World
The term ''New World'' is often used to mean the majority of Earth's Western Hemisphere, specifically the Americas."America." ''The Oxford Companion to the English Language'' (). McArthur, Tom, ed., 1992. New York: Oxford University Press, p. 33: "[16c: from the feminine of ''Americus'', the Latinized first name of the explorer Amerigo Vespucci (1454–1512). The name ''America'' first appeared on a map in 1507 by the German cartographer Martin Waldseemüller, referring to the area now called Brazil]. Since the 16c, a name of the western hemisphere, often in the plural ''Americas'' and more or less synonymous with ''the New World''. Since the 18c, a name of the United States of America. The second sense is now primary in English: ... However, the term is open to uncertainties: ..." The term gained prominence in the early 16th century, during Europe's Age of Discovery, shortly after the Italian explorer Amerigo Vespucci concluded that America (now often called ''the Am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Journal For Parasitology
The ''International Journal for Parasitology'' is an international medical journal published for the Australian Society for Parasitology by Elsevier. The journal includes original research articles, reviews, and commentary relating to parasites Parasitism is a Symbiosis, close relationship between species, where one organism, the parasite, lives on or inside another organism, the Host (biology), host, causing it some harm, and is Adaptation, adapted structurally to this way of lif ... and their host interactions. External links * Australian Society for Parasitology Parasitology journals Publications established in 1971 Elsevier academic journals English-language journals Journals published between 13 and 25 times per year {{med-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
