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VIII.25 - Chagas’ Disease

from Part VIII - Major Human Diseases Past and Present

Published online by Cambridge University Press:  28 March 2008

Kenneth F. Kiple
Affiliation:
Bowling Green State University, Ohio
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Summary

Chagas’ disease (American; trypanosomiasis, trypanosomiasis cruzi) is an illness of the Americas which can take the form of either an acute, febrile, generalized infection or a chronic process. The cause is a protozoan, Trypanosoma cruzi, which is harbored by both domesticated and wild animals. When it is transmitted to humans by insects, this essentially untreatable disease is associated with fever, edemas, and enlargement of the lymph nodes and can cause dilation of parts of the digestive tract leading to megacolon and megaesophagus as well as cardiac enlargement and failure. In fact, Chagas’ disease is the leading cause of cardiac death of young adults in parts of South America.

Distribution and Incidence

The disease, which probably had its origins in Brazil, is limited to the Western Hemisphere, with heavy concentrations in Brazil, Argentina, Chile, and Venezuela. Cases are also reported in Peru, Mexico, and most other Central and South American countries along with the Caribbean islands and the United States.

Epidemiology and Etiology

T. cruzi, a member of the class Mastigophora, family Trypanisomidae, has over 100 vertebrate hosts including dogs, cats, armadillos, opossums, monkeys, and humans. Unlike other trypanosomes it does not multiply in the bloodstream, but rather lives within various tissues of the host and multiplies by binary fission. It is transmitted by reduvid bugs that ingest the trypanosome during a blood meal from a vertebrate host. The trypanosomes in turn develop in the intestines of the bug, and, while they neither enter its saliva nor are injected when the bug bites, they do pass out in its feces.

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Chapter
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Publisher: Cambridge University Press
Print publication year: 1993

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References

Burnet, Frank MacFarlane. 1962. Natural history of infectious disease. 3d edition. Cambridge.Google Scholar
Chagas, C. 1909. Nova tripanozomaize humana. Estudos sobre a morfolojia e o ciclo evolutivo do Schizotrypanum cruzi n. gen., n. sp., ajente etiolojico de nova entidade morbida do homen. Memorias do Instituto Oswaldo Cruz 1.CrossRefGoogle Scholar
Crowell, B. C. 1923. The acute form of American trypanosomiasis: Notes on its pathology with autopsy reports and observations on trypanosomiasis cruzi in animals. American Journal of Tropical Medicine 3.Google Scholar
Goldsmith, R. S., et al. 1985. Clinical and epidemiological studies of Chagas’ disease in rural communities in Oaxaca State, Mexico, and a seven-year follow-up: I.Cerro del Aire. Pan American Health Organization Bulletin 19.Google Scholar
Mazza, S., et al. 1941. Primer quinquenio de la investigation por la M.E.P.R.A de la enfermedad de Chagas en la provincia de Mendoza, Mission de estudios de patologia regional Argentina. Buenos Aires.Google Scholar
Rothamer, F., et al. 1985. Chagas’ disease in pre-Columbian South America. American Journal of Physical Anthropology 68.Google Scholar
Silva, L. J. da. 1985. A doença de Chagas no Brasil. Indícios de sua ocurrência e distribuiçāo até 1909. Revista do Instituto de Medicina Tropical de Sāo Paulo 27.Google Scholar

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  • Chagas’ Disease
  • Edited by Kenneth F. Kiple, Bowling Green State University, Ohio
  • Book: The Cambridge World History of Human Disease
  • Online publication: 28 March 2008
  • Chapter DOI: https://doi.org/10.1017/CHOL9780521332866.087
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  • Chagas’ Disease
  • Edited by Kenneth F. Kiple, Bowling Green State University, Ohio
  • Book: The Cambridge World History of Human Disease
  • Online publication: 28 March 2008
  • Chapter DOI: https://doi.org/10.1017/CHOL9780521332866.087
Available formats
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Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Chagas’ Disease
  • Edited by Kenneth F. Kiple, Bowling Green State University, Ohio
  • Book: The Cambridge World History of Human Disease
  • Online publication: 28 March 2008
  • Chapter DOI: https://doi.org/10.1017/CHOL9780521332866.087
Available formats
×