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Chagas' disease

[shah-guh s] /ˈʃɑ gəs/
noun, Pathology
1.
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.
Origin
1910-1915
1910-15; named after C. Chagas (1879-1934), Brazilian physician, its describer
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for chagas-disease

Chagas' disease

/ˈʃɑːɡəs/
noun
1.
a form of trypanosomiasis found in South America, caused by the protozoan Trypanosoma cruzi, characterized by fever and, often, inflammation of the heart muscles Also called American trypanosomiasis, South American trypanosomiasis Compare sleeping sickness
Word Origin
C20: named after Carlos Chagas (1879–1934), Brazilian physician who first described it
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for chagas-disease

Chagas' disease

infection with the flagellate protozoan Trypanosoma cruzi. It is transmitted to humans by bloodsucking reduviid bugs and is endemic in most rural areas of Central and South America. The disease is most often transmitted by contact with the feces of infected insects, commonly through scratching of the skin at the site of the insects' bites, or through the mucous membranes of the eye and mouth. About a week following inoculation, local signs appear, including edema (swelling) and lymph node enlargement; the patient may have fever and prostration for several weeks. The disease may then enter a chronic stage, characterized chiefly by heart symptoms, mainly disturbances of the rhythm; heart failure sometimes occurs because of the development of the parasite in the muscle fibres of the heart and because of the accompanying inflammatory reaction. The infection may end in death, especially in children, or the course may be mild. Nifurtimox is the drug of choice for treating acute T. cruzi infections, though benznidazole is an alternative agent. There is no effective treatment for chronic infections. Prevention is centred on control of the insect carrier and screening of the blood supply to avoid transfusion of infected blood

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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