1973
DOI: 10.1590/s0037-86821973000400006
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O fenômeno parasitismo

Abstract: Luiz F e rn a n d o F e rre ira ** "A t ali leveis of organization, the outcome of the interplay between two individuais is ãe-term ined not only by their intrinsic endowments but also and even more, by the conditions under which they come into contact". René Dubos "Infectious disease is the result of much more than the mere collision of an infectious agent w ith a potencial host". H . J . Simon I -O ENFOQUE ECOLÓGICO O ser vivo como meio ambienteOs autores modernos têm procurado de finir o fenômeno parasitism… Show more

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Cited by 21 publications
(18 citation statements)
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References 25 publications
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“…A parasite is a necessary but not sufficient condition to launch a parasitic disease (Ferreira 1973). Parasitism does not necessarily result in injury or benefit to the host.…”
Section: Parasites and Infectious Diseasesmentioning
confidence: 99%
See 1 more Smart Citation
“…A parasite is a necessary but not sufficient condition to launch a parasitic disease (Ferreira 1973). Parasitism does not necessarily result in injury or benefit to the host.…”
Section: Parasites and Infectious Diseasesmentioning
confidence: 99%
“…A system is formed by the parasite, the host, and the environment where each one interacts and influences the other subsystem in such a way that any change in one subsystem affects the other two (Ferreira 1973). Systems may exhibit order spontaneously.…”
Section: Parasites and Infectious Diseasesmentioning
confidence: 99%
“…The parasitism phenomenon consists of dynamic relations within a natural evolutionary process as old as life itself 38 . An animal parasite that does not infect humans may begin to do so if pressure, genetic potentiality and plasticity allow it.…”
Section: Discussionmentioning
confidence: 99%
“…Such encounters can generate new intraspecific relations (either successful or unsuccessful) and intermediate relations 91 . This fact can be exemplified by the sporadic finding of animal helminth eggs in human feces, merely meaning human consumption of some animal infected with the parasite and that the eggs passed through the human digestive tract together with the ingested food, without establishing a relationship and without even causing any damage to his health 38 .…”
mentioning
confidence: 99%
“…Because nests are temporary and interrupted microhabitats, an obvious adaptation is the use of the host to disperse (Radovsky, 1985). The manner of dispersion used by arthropods associated with vertebrates is one of the most important factors determining specificity, because specificity depends on ecological conditions that permit meeting between host and parasite (Ferreira, 1973;Timm, 1983). For nidicolous laelapine mites, dispersion is primarily vertical, between hosts of the same species (parents and young) that use the same nest (Radovsky, 1985).…”
Section: Discussionmentioning
confidence: 99%