Paleoparasitology of Schistosomiasis
نویسندگان
چکیده
منابع مشابه
Paleoparasitology of schistosomiasis.
Eighteen years ago, when we began our studies in paleoparasitology, the main question proposed was whether Schistosoma mansoni infection has been really introduced by African slave trade in South America or has it been present among indians before Columbus. Up to now the question remains without answer, but it is interesting to point to some old and recent arguments regarding schistosome infect...
متن کاملPaleoparasitology: perspectives with new techniques.
Paleoparasitology is the study of parasites found in archaeological material. The development of this field of research began with histological identification of helminth eggs in mummy tissues, analysis of coprolites, and recently through molecular biology. An approach to the history of paleoparasitology is reviewed in this paper, with special reference to the studies of ancient DNA identified ...
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Parasitism is composed by three subsystems: the parasite, the host, and the environment. There are no organisms that cannot be parasitized. The relationship between a parasite and its host species most of the time do not result in damage or disease to the host. However, in a parasitic disease the presence of a given parasite is always necessary, at least in a given moment of the infection. Some...
متن کاملPaleoparasitology of Chagas disease--a review.
One hundred years since the discovery of Chagas disease associated with Trypanosoma cruzi infection, growing attention has focused on understanding the evolution in parasite-human host interaction. This interest has featured studies and results from paleoparasitology, not only the description of lesions in mummified bodies, but also the recovery of genetic material from the parasite and the pos...
متن کاملParasitism, the diversity of life, and paleoparasitology.
The parasite-host-environment system is dynamic, with several points of equilibrium. This makes it difficult to trace the thresholds between benefit and damage, and therefore, the definitions of commensalism, mutualism, and symbiosis become worthless. Therefore, the same concept of parasitism may encompass commensalism, mutualism, and symbiosis. Parasitism is essential for life. Life emerged as...
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ژورنال
عنوان ژورنال: Memórias do Instituto Oswaldo Cruz
سال: 1997
ISSN: 0074-0276
DOI: 10.1590/s0074-02761997000500028