Chagas disease

Chagas disease
a form of trypanosomiasis seen widely in Central and South America, caused by Trypanosoma cruzi, and transmitted by the bites of reduviid bugs of the genera Triatoma, Panstrongylus, and Rhodnius, whose reservoir hosts are domestic and wild mammals. The acute form, prevalent in children, is characterized by an erythematous nodule (chagoma) at the site of inoculation, high fever, Romaсa sign (swelling on one side of the face), regional lymphadenopathy, hepatosplenomegaly, and meningoencephalic irritation. If the child survives, the disease may resolve completely, or the subacute or chronic form may follow. The subacute form may last for several months or years and is characterized by mild fever, severe asthenia, and generalized lymphadenopathy. The chronic form, which may or may not be preceded by an acute episode, is characterized by cardiac manifestations such as myocarditis, as well as gastrointestinal manifestations such as megaesophagus and megacolon. Called also American or South American trypanosomiasis.

Medical dictionary. 2011.

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  • Chagas' disease — n. [Carlos Chagas, a physician in Brazil, 1879 1934] a form of trypanosomiasis caused by infection with {Trypamosoma cruzi}, found principally in South America. It is transmitted by certain species of reduviid bugs, and has natural reservoirs in… …   The Collaborative International Dictionary of English

  • Chagas' disease — [shä′gəs] n. [after Carlos Chagas, Brazilian physician who identified it (1909)] a type of trypanosomiasis, common in Central and South America, caused by a parasite (Trypanosoma cruzi) that is carried by reduviid insects, and characterized by… …   English World dictionary

  • Chagas disease — Classification and external resources …   Wikipedia

  • Chagas' disease — Cha·gas disease shäg əs (əz ) n a tropical American disease that is caused by a protozoan of the genus Trypanosoma (T. cruzi) transmitted by reduviid bugs esp. of the genus Triatoma, that has an acute form primarily affecting children and marked… …   Medical dictionary

  • Chagas' disease — /shah geuhs/, Pathol. an infectious disease caused by the protozoan Trypanosoma cruzi, occurring chiefly in tropical America and characterized by irregular fever, palpable lymph nodes, and often heart damage. Also called American trypanosomiasis …   Universalium

  • chagas' disease — (also Chagas s disease) n. a kind of sleeping sickness caused by a protozoan transmitted by blood sucking bugs. Etymology: C. Chagas, Braz. physician d. 1934 …   Useful english dictionary

  • Chagas disease — Cha·gas disease (chahґgəs) [Carlos Justiniano Ribeiro das Chagas, Brazilian physician, 1879–1934] see under disease …   Medical dictionary

  • Chagas' disease — a disease caused by the protozoan parasite Trypanosoma cruzi. It is transmitted to humans when the trypanosomes, present in the faeces of nocturnal bloodsucking reduviid bugs, come into contact with wounds and scratches on the skin or the… …   The new mediacal dictionary

  • Chagas' disease — noun Etymology: Carlos Chagas died 1934 Brazilian physician Date: 1912 a tropical American disease that is caused by a trypanosome (Trypanosoma cruzi) and is marked by prolonged high fever, edema, and enlargement of the spleen, liver, and lymph… …   New Collegiate Dictionary

  • Chagas'disease — Cha·gas disease (shäʹgəs) n. A South American form of trypanosomiasis caused by the protozoan Trypanosoma cruzi that is characterized by fever and enlargement of the spleen and lymph nodes.   [After Carlos Chagas (1879 1934), Brazilian… …   Universalium

  • Chagas' disease — [ tʃα:gəsɪz] noun a disease caused by a trypanosome transmitted by bloodsucking bugs, endemic in Central and South America and causing damage to the heart and central nervous system. Origin early 20th cent.: named after the Brazilian physician… …   English new terms dictionary

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