| Trypanosoma hominis | A haemoflagellate subspecies of parasitic protozoa that causes gambian or west african sleeping sickness in humans. The vector host is usually the tsetse fly (glossina). (12 Dec 1998) |
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| Trypanosoma ignotum | Old name for Trypanosoma simiae. (05 Mar 2000) |
| trypanosoma lewisi | A trypanosome found in the blood of adult rats and transmitted by the rat flea. It is generally non-pathogenic in adult rats but can cause lethal infection in suckling rats. (12 Dec 1998) |
| Trypanosoma melophagium | A nonpathogenic species (related to Trypanosoma theileri) found in sheep throughout the world, and probably in goats as well; the vector is Melophagus ovinus. (05 Mar 2000) |
| Trypanosoma rangeli | A species that parasitises a wide variety of mammals, including humans, in South America and is transmitted by the triatomid bugs Rhodnius prolixus and Tiratoma dimidiata, and probably others; it is apparently nonpathogenic but may be pathogenic in the bug host. (05 Mar 2000) |
| Trypanosoma rhodesiense | A haemoflagellate subspecies of parasitic protozoa that causes rhodesian sleeping sickness in humans. It is carried by glossina pallidipes, g. Morsitans and occasionally other species of game-attacking tsetse flies. (12 Dec 1998) |
| Trypanosoma simiae | A species normally found in warthogs; it is highly pathogenic in pigs and camels, and is transmitted cyclically by tsetse flies and mechanically by bloodsucking flies. (05 Mar 2000) |
| Trypanosoma suis | A species pathogenic for swine in Africa; it is transmitted by tsetse flies. (05 Mar 2000) |
| Trypanosoma theileri | A large, relatively nonpathogenic species found in African antelopes and in cattle in many parts of the world; the parasites are spread by bloodsucking tabanid horseflies. (05 Mar 2000) |
| Trypanosoma triatomae | The agent of south american trypanosomiasis or chagas disease. Its vertebrate hosts are man and various domestic and wild animals. Insects of several species are vectors. (12 Dec 1998) |
| Trypanosoma ugandense | A haemoflagellate subspecies of parasitic protozoa that causes gambian or west african sleeping sickness in humans. The vector host is usually the tsetse fly (glossina). (12 Dec 1998) |
| trypanosoma vivax | An active blood parasite that is present in practically all domestic animals in africa, the west indies, and parts of central and south america. In africa, the insect vector is the tsetse fly. In other countries, infection is by mechanical means indicating that the parasites have been introduced to these countries and have been able to maintain themselves in spite of the lack of a suitable intermediate host. It is a cause of nagana, the severity of which depends on the species affected. (12 Dec 1998) |
| trypanosomatid | Common name for a member of the family Trypanosomatidae. Synonym: trypanid. (05 Mar 2000) |
| Trypanosomatidae | A protozoan family of haemoflagellates (order Kinetoplastida, class Zoomastigophorea, subphylum Mastigophora); asexual blood and/or tissue parasites of leeches, insects, and vertebrates and sap inhabitants of plants, characterised by a rounded or elongate form, a single nucleus, elongate mitochondrion (its position in relation to the nucleus is a characteristic of each genus), and an anteriorly directed single flagellum (in some genera, it borders an undulating membrane). Trypanosomatidae includes the genera Crithidia, Herpetomonas, Leptomonas, and Blastocrithidia, all of which are monogenetic and found in insects, and Phytomonas (found in plants), Endotrypanum, Leishmania, and Trypanosoma, all of which are digenetic; Leishmania and Trypanosoma include important pathogens of man and animals. Many trypanosomes pass through developmental or life cycle stages similar to the body forms characteristic of the genera; these forms include amastigote, choanomastigote, opisthomastigote, promastigote, epimastigote, and trypomastigote. (05 Mar 2000) |
| trypanosomatina | A suborder of monoflagellate parasitic protozoa that lives in the blood and tissues of man and animals. Representative genera include: blastocrithidia, leptomonas, crithidia, herpetomonas, leishmania, phytomonas, and trypanosoma. Species of this suborder may exist in two or more morphologic stages formerly named after genera exemplifying these forms - amastigote (leishmania), choanomastigote (crithidia), promastigote (leptomonas), opisthomastigote (herpetomonas), epimastigote (blastocrithidia), and trypomastigote (trypanosoma). (12 Dec 1998) |
Synonyms :
Synonyms :
Synonyms :
Synonyms :
| Trypanosoma |
a genus of protozoa (suborder Trypanosomatina, order Kinetoplastida) comprising hemoflagellates parasitic in invertebrates and vertebrates, including humans; several species are pathogenic. Their life cycle involves amastigote, promastigote, epimastigote, and trypomastigote stages; the first three stages are found in the vector (usually a bloodsucking invertebrate) and the last in the vertebrate (definitive) host. In some systems of classification, trypanosomes are categorized in two groups according to where they develop in the digestive system of the vector: salivaria, including the subgenera Duttonella, Nannomonas, and Trypanozoon; and stercoraria, including the subgenera Megatrypanum, Herpetosoma, and Schizotrypanum. Another system classifies them into four groups based on biological similarities: (1) lewisi group, including T. lewisi, T. duttoni, T. theileri, T. cruzi, T. nabiasi, T. melophagium, and T. rangeli; (2) vivax group, including T. vivax and T. uniforme; (3) congolense group, including T. congolense, T. dimorphon, and T. simiae; and (4) brucei group, including T. brucei, T. gambiense, T. rhodesiense, T. evansi, T. equinum, and T. equiperdum.
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| trypanosomatid |
1. any protozoan of the suborder Trypanosomatina. 2. pertaining to or caused by a protozoan of the suborder Trypanosomatina.
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| Trypanosomatina |
a suborder of parasitic protozoa (order Kinetoplastida, class Zoomastigophorea) comprising the hemoflagellates, which are found in the hosts' blood, lymph, and tissues, and are characterized by a leaflike or rounded body with one nucleus, one flagellum that is free or attached to the body by an undulating membrane, and a relatively small compact kinetoplast. All trypanosomatids have morphologically distinct stages in their life cycles during which the organisms of one genus may pass through forms characteristic of other genera of the suborder. These forms include: amastigote, choanomastigote, epimastigote, opisthomastigote, promastigote, and trypomastigote. Not all species pass through all of the stages, but all have at least two such forms during their development. Representative genera include Blastocrithidia, Crithidia, Leishmania, Leptomonas, and Trypanosoma.
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| trypanosomatotropic |
having a selective affinity for trypanosomes.
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