Trypanosoma


Also found in: Dictionary, Encyclopedia, Wikipedia.
Related to Trypanosoma: Leishmania, trypanosomiasis, Trypanosoma brucei, Trypanosoma gambiense

Trypanosoma

 [tri″pan-o-so´mah]
a multispecies genus of protozoa parasitic in the blood and lymph of invertebrates and vertebrates, including humans; most species live part of their life cycle in the intestines of insects and other invertebrates, the typical adult stage being found only in the vertebrate host. T. gambien´se and T. rhodesien´se cause the Gambian and Rhodesian forms of African trypanosomiasis in humans, and T. cru´zi causes American trypanosomiasis. Other species cause diseases in domestic animals.
Life cycle of the etiologic agents of sleeping sickness (Trypanosoma gambiense and T. rhodesiense). From Mahon and Manuselis, 2000.

Trypanosoma

(tri-pan'ō-sō'mă, trip'ă-nō-),
A genus of asexual digenetic protozoan flagellates (family Trypanosomatidae) that have a spindle-shaped body with an undulating membrane on one side, a single anterior flagellum, and a kinetoplast; they are parasitic in the blood plasma of many vertebrates (only a few being pathogenic) and as a rule have an intermediate host, a bloodsucking invertebrate, such as a leech, tick, or insect; pathogenic species cause trypanosomiasis in humans and other diseases in domestic animals.
[G. trypanon, an auger, + sōma, body]

Trypanosoma

/Try·pano·so·ma/ (tri″pan-o-so´mah) a genus of protozoa parasitic in the blood and lymph of invertebrates and vertebrates, including humans. T. bru´cei gambien´se and T. bru´cei rhodesien´se cause types of African trypanosomiasis and T. cru´zi causes Chagas' disease.

Trypanosoma

[trip′ənōsō′mə]
Etymology: Gk, trypanon, borer, soma, body
a genus of parasitic organisms, several species of which can cause significant diseases in humans. Most Trypanosoma organisms live part of their life cycle in insects and are transmitted to humans by insect bites. See also trypanosome, trypanosomiasis.

Try·pan·o·so·ma

(trī-pan'ō-sō'mă)
A genus of asexual digenetic protozoan flagellates that are parasitic in the blood plasma of many vertebrates and as a rule have an intermediate host, a bloodsucking invertebrate such as a leech, tick, or insect; pathogenic species cause trypanosomiasis in humans.
[G. trypanon, an auger, + sōma, body]

Trypanosoma

(tri-pan″ŏ-sō-mă) [Gr. trypanon, borer + Gr. sōma, a body]
Enlarge picture
TRYPANOSOMA CRUZI: (Orig. mag. ×1000)
A genus of parasitic, flagellate protozoa found in the blood of many vertebrates, including humans. The protozoa are transmitted by insect vectors. The only two species relevant for disease in humans are T. brucei and T. cruzi. See: illustration

Trypanosoma brucei

A species with three subspecies: T. brucei brucei, T. brucei gambiense, and T. brucei rhodesiense. The subspecies T. brucei brucei causes a wasting disease in cattle called nagana but does not produce disease in humans. The subspecies T. brucei gambiense causes African sleeping sickness in western and central Africa. The subspecies T. brucei rhodesiense, transmitted by the tsetse fly, causes African sleeping sickness in eastern and southern Africa.

Trypanosoma cruzi

The causative agent of American trypanosomiasis (Chagas disease). It is transmitted by triatomids (bloodsucking insects of the family Reduviidae).

Trypanosoma

a multispecies genus of protozoa in the family Trypanosomatidae, parasitic in the blood, lymph and tissues of invertebrates and vertebrates, including humans; most species live part of their life cycle in the intestines of insects and other invertebrates, the flagellate stage being found only in the vertebrate host. The species which cause serious diseases of domestic animals are listed individually below. Species of minor pathogenicity include T. avium (birds), T. binneyi (platypus), T. calmetti (ducklings), T. diazi (capuchin monkeys), T. dimorphon (domestic animals generally), T. gallinarum (fowls), T. melophagium (sheep), T. minasense (monkeys, e.g. marmosets), T. nabiasi (rabbits), T. primatum (chimpanzees, gorillas), T. rangeli (humans, dogs, cats). Called also T. ariarii, T. guatamalense, T. saimiriae (squirrel monkeys), T. sanmartini (squirrel monkeys), T. theodori (pigs).

Trypanosoma brucei (syn. Trypanosoma pecaudi)
causes a severe disease in all species including horse, cattle, sheep, dogs and cats.
Trypanosoma congolense (syn. Trypanosoma pecorum, Trypanosoma nanum, Trypanosoma montgomeryi)
causes diseases in all domestic animals but most serious in humans (sleeping sickness), cattle (nagana); reservoir hosts are wild ruminants.
Trypanosoma cruzi (syn. Trypanosoma escomeli)
a disease of humans (Chagas' disease, American trypanosomiasis) which has reservoirs in pigs, dogs and cats and many wild animals. It causes disease in these hosts and may be fatal to dogs.
Trypanosoma equinum
occurs in various species but is most serious in equids, in which it is characterized by posterior paralysis; called Mal de Caderas.
Trypanosoma equiperdum
a serious disease of equids which it is transmitted venereally and is called dourine.
Trypanosoma evansi
causes infection in many species including camels, horses and dogs. The disease in horses is surra. In cattle and buffalo the disease is subclinical but these species act as reservoirs.
Trypanosoma gambiense (syn. Trypanosoma hominis, Trypanosoma nigeriense, Trypanosoma ugandense)
a chronic disease of humans which can occur also in cattle, goats, sheep, horses, dogs and cats.
Trypanosoma lewisi
occurs in rats and may cause death in ratlings.
Trypanosoma rhodesiense
causes a serious disease in humans but only a mild one in ruminants and other domestic animals and monkeys.
Trypanosoma suis
found in pigs in which it causes a fatal disease.
Trypanosoma theileri
considered to be nonpathogenic in cattle, in which it occurs almost universally but may cause illness in stressed animals.
Trypanosoma uniforme
found in most ruminants. Similar to T. vivax in pathogenicity.
Trypanosoma vivax (syn. Trypanosoma caprae, Trypanosoma angolense)
found in ruminants and horses but not pigs, dogs, cats. Causes a serious and fatal disease in cattle and goats, especially in animals under stress.
References in periodicals archive ?
In vitro trypanocidal activity of DB745B and other novel arylimidamides against Trypanosoma cruzi.
The United States Trypanosoma cruzi Infection Study: evidence for vector-borne transmission of the parasite that causes Chagas disease among United States blood donors.
Leucocytozoon, along with Haemoproteus, microfilaria, and Trypanosoma, were detected at levels similar to those observed in previous studies of migrating Northern Saw-whet Owls (Taft et al.
Identification by QPCR of Trypanosoma cruzi lineage and determination of blood meal sources in triatomine gut samples in Mexico.
Chagas disease is caused by the flagellate protozoan Trypanosoma cruzi, transmitted mainly by the insects from the genus Triatoma, representing a public health problem in South America with 20 million people infected and 90 million at risk in endemic areas (WHO, 2000).
HAT in West and Central Africa is typically a chronic infection caused by the protozoan parasite Trypanosoma brucei gambiense while Trypanosoma brucei rhodesiense causes a more acute form of the illness and is most often found in East Africa.
IMMUNOMODULATORY EFFECTS OF ZINC AND DHEA ON THE TH-1 IMMUNE RESPONSE IN RATS INFECTED WITH TRYPANOSOMA CRUZI.
The US Food and Drug Administration (FDA) announced it has approved a second test to screen blood, tissue, and organ donors for a blood-borne parasite, Trypanosoma cruzi (T.
It is very frustrating that in one of the most authoritative books on the subject of transmission of infectious diseases published, Trypanosoma cruzi is not mentioned (3).