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Triatoma Brasiliensis
''Triatoma brasiliensis'' is now considered the most important Chagas disease vector in the semiarid areas of northeastern Brazil. ''T. brasiliensis'' occurs in 12 Brazilian states, including Maranhão, Piauí, Ceará, Rio Grande do Norte, and Paraíba. ''T. brasiliensis'' is native to this part of Brazil, and thus persists in the natural environment. This species of Kissing Bug has the greatest potential to spread Chagas disease due to its distribution over large areas where numerous people reside. ''Triatoma'' species are commonly called Kissing Bugs because they bite around the mouth where skin is thinner. ''T. brasiliensis'' also has the greatest potential to colonize new areas and spread throughout northeastern parts of Brazil. This makes control problematic (see #Control below). Life Cycle Female triatomids deposit small eggs in secluded areas. After 8 to 10 days the first of five nymph stages emerges. A full blood meal is required before continuing onto the next nymph st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chagas Disease
Chagas disease, also known as American trypanosomiasis, is a tropical parasitic disease caused by ''Trypanosoma cruzi''. It is spread mostly by insects in the subfamily ''Triatominae'', known as "kissing bugs". The symptoms change over the course of the infection. In the early stage, symptoms are typically either not present or mild, and may include fever, swollen lymph nodes, headaches, or swelling at the site of the bite. After four to eight weeks, untreated individuals enter the chronic phase of disease, which in most cases does not result in further symptoms. Up to 45% of people with chronic infections develop heart disease 10–30 years after the initial illness, which can lead to heart failure. Digestive complications, including an enlarged esophagus or an enlarged colon, may also occur in up to 21% of people, and up to 10% of people may experience nerve damage. is commonly spread to humans and other mammals by the bite of a kissing bug. The disease may also be spr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kissing Bug
The members of the Triatominae , a subfamily of the Reduviidae, are also known as conenose bugs, kissing bugs (so-called from their habit of feeding from around the mouths of people), or vampire bugs. Other local names for them used in The Americas include ''barbeiros'', ''vinchucas'', ''pitos'', ''chipos'' and ''chinches''. Most of the 130 or more species of this subfamily feed on vertebrate blood; a very few species feed on invertebrates. They are mainly found and widespread in the Americas, with a few species present in Asia and Africa. These bugs usually share shelter with nesting vertebrates, from which they suck blood. In areas where Chagas disease occurs (from the southern United States to northern Argentina), all triatomine species are potential vectors of the Chagas disease parasite ''Trypanosoma cruzi'', but only those species that are well adapted to living with humans (such as ''Triatoma infestans'' and ''Rhodnius prolixus'') are considered important vectors. Also, p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insect Vectors Of Human Pathogens
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; In: potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within. Nearly all insects hatch from eggs. Inse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reduviidae
The Reduviidae are a large cosmopolitan family of the order Hemiptera (true bugs). Among the Hemiptera and together with the Nabidae almost all species are terrestrial ambush predators: most other predatory Hemiptera are aquatic. The main examples of nonpredatory Reduviidae are some blood-sucking ectoparasites in the subfamily Triatominae. Though spectacular exceptions are known, most members of the family are fairly easily recognizable; they have a relatively narrow neck, sturdy build, and a formidable curved proboscis (sometimes called a rostrum). Large specimens should be handled with caution, if at all, because they sometimes defend themselves with a very painful stab from the proboscis. Taxonomy The Reduviidae are members of the suborder Heteroptera of the order Hemiptera. The family members are almost all predatory, except for a few blood-sucking species, some of which are important as disease vectors. About 7000 species have been described, in more than 20 recognized subfa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sylvatic
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Trypanosoma Cruzi
''Trypanosoma cruzi'' is a species of parasitic euglenoids. Among the protozoa, the trypanosomes characteristically bore tissue in another organism and feed on blood (primarily) and also lymph. This behaviour causes disease or the likelihood of disease that varies with the organism: Chagas disease in humans, dourine and surra in horses, and a brucellosis-like disease in cattle. Parasites need a host body and the haematophagous insect triatomine (descriptions "assassin bug", "cone-nose bug", and "kissing bug") is the major vector in accord with a mechanism of infection. The triatomine likes the nests of vertebrate animals for shelter, where it bites and sucks blood for food. Individual triatomines infected with protozoa from other contact with animals transmit trypanosomes when the triatomine deposits its faeces on the host's skin surface and then bites. Penetration of the infected faeces is further facilitated by the scratching of the bite area by the human or animal host. Life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Control
Control may refer to: Basic meanings Economics and business * Control (management), an element of management * Control, an element of management accounting * Comptroller (or controller), a senior financial officer in an organization * Controlling interest, a percentage of voting stock shares sufficient to prevent opposition * Foreign exchange controls, regulations on trade * Internal control, a process to help achieve specific goals typically related to managing risk Mathematics and science * Control (optimal control theory), a variable for steering a controllable system of state variables toward a desired goal * Controlling for a variable in statistics * Scientific control, an experiment in which "confounding variables" are minimised to reduce error * Control variables, variables which are kept constant during an experiment * Biological pest control, a natural method of controlling pests * Control network in geodesy and surveying, a set of reference points of known geospatial coo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triatoma
''Triatoma'' is a genus of assassin bug in the subfamily Triatominae (kissing bugs). The members of ''Triatoma'' (like all members of Triatominae) are blood-sucking insects that can transmit serious diseases, such as Chagas disease. Their saliva may also trigger allergic reactions in sensitive individuals, up to and including severe anaphylactic shock. Species These are species according to reliable sources. While most species are found in the New World, a few are known from the Old World. NOTE: ''The designation (Tc) signifies that the species is associated with Trypanosoma cruzi''. * '' Triatoma amicitiae'' Lent, 1951 * '' Triatoma arthurneivai'' Lent & Martins, 1940 * '' Triatoma bahiensis'' Sherlock & Serafim, 1967 * '' Triatoma baratai'' Carcavallo & Jurberg, 2000 * '' Triatoma barberi'' Usinger, 1939 * '' Triatoma bolivari'' Carcavallo, Martínez & Pelaez, 1984 * '' Triatoma boliviana'' Avendaño, 2007 * '' Triatoma bouvieri'' Larrousse, 1924 * '' Triatoma brailovskyi'' Ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brazil
Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area and the seventh most populous. Its capital is Brasília, and its most populous city is São Paulo. The federation is composed of the union of the 26 States of Brazil, states and the Federal District (Brazil), Federal District. It is the largest country to have Portuguese language, Portuguese as an List of territorial entities where Portuguese is an official language, official language and the only one in the Americas; one of the most Multiculturalism, multicultural and ethnically diverse nations, due to over a century of mass Immigration to Brazil, immigration from around the world; and the most populous Catholic Church by country, Roman Catholic-majority country. Bounded by the Atlantic Ocean on the east, Brazil has a Coastline of Brazi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northeast Region, Brazil
The Northeast Region of Brazil ( pt, Região Nordeste do Brasil; ) is one of the five official and political regions of the country according to the Brazilian Institute of Geography and Statistics. Of Brazil's twenty-six states, it comprises nine: Maranhão, Piauí, Ceará, Rio Grande do Norte, Paraíba, Pernambuco, Alagoas, Sergipe and Bahia, along with the Fernando de Noronha archipelago (formerly a separate territory, now part of Pernambuco). Chiefly known as ''Nordeste'' ("Northeast") in Brazil, this region was the first to be colonized by the Portuguese and other European peoples, playing a crucial role in the country's history. ''Nordestes dialects and rich culture, including its folklore, cuisines, music and literature, became the most easily distinguishable across the country. To this day, ''Nordeste'' is known for its history and culture, as well as for its natural environment and its hot weather. ''Nordeste'' stretches from the Atlantic seaboard in the northeast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paraíba
Paraíba ( Tupi: ''pa'ra a'íba''; ) is a state of Brazil. It is located in the Brazilian Northeast, and it is bordered by Rio Grande do Norte to the north, Ceará to the west, Pernambuco to the south and the Atlantic Ocean to the east. Paraíba is the third most densely populated state of the Northeast; João Pessoa, the sea-bordered state capital, and Campina Grande, in the interior, rank among the fifteen-largest municipalities in the Northeast of Brazil. The state is home to 1.9% of the Brazilian population and produces 0.9% of the Brazilian GDP. Paraíba is most populated along the Atlantic coast, which extends as far as Ponta do Seixas, the easternmost point of the Americas. The state is a tourist and industrial hotspot; it is known for its cultural heritage, amenable climate and geographical features, ranging from the seaside beaches to the Borborema Plateau. It is named after the Paraíba river. Some of the most notable Brazilian writers and poets are from Paraíba lik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rio Grande Do Norte
Rio Grande do Norte (, , ) is one of the states of Brazil. It is located in the northeastern region of the country, forming the northeasternmost tip of the South American continent. The name literally translates as "Great Northern River", referring to the mouth of the Potengi River. The capital and largest city is Natal. The state has 410 km (254 mi) of sandy beaches and contains Rocas Atoll, the only atoll the Atlantic Ocean. The main economic activity is tourism, followed by the extraction of petroleum (the second largest producer in the country), agriculture, fruit growing and extraction of minerals, including considerable production of seasalt, among other economic activities. The state is home to 1.7% of the Brazilian population and produces 1% of the country's GDP. In 2000-17 the murder rate rose by 655%, making Rio Grande do Norte the state with the highest murder rate in Brazil: 63.9 per 100,000. Tourist attractions in the state include the Cashew of Pirang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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