2003
DOI: 10.1590/s0037-86822003000400014
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Abstract: Blastocystosis is the infection caused by Blastocystis hominis. It is associated with frequent and unquestionably very important controversy and lack of definition, above all due to its implications for general assistance and medical care. In that connection, there is considerable disagreement on the subject of the pathogenicity of this protozoan, which should be categorically defined. Other aspects besides the above, require clarification through results from well conducted studies aiming at attributing Blast… Show more

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Cited by 19 publications
(6 citation statements)
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“…Although the culture is efficient, its cost is higher than the direct method, which has good sensitivity for detecting Blastocystis , since the vacuolar shapes of this parasite are usually released in large amounts in feces. In the authors' experience and unlike that of other authors 1 , staining of fecal smears for direct identification of Blastocystis from feces is not easy to analyze, as the microscopist needs experience to obtain a good result. Thus, the Ritchie's method is a good concentration method, as it is fast and effective, as demonstrated by other authors 14 .…”
Section: Discussionmentioning
confidence: 95%
See 1 more Smart Citation
“…Although the culture is efficient, its cost is higher than the direct method, which has good sensitivity for detecting Blastocystis , since the vacuolar shapes of this parasite are usually released in large amounts in feces. In the authors' experience and unlike that of other authors 1 , staining of fecal smears for direct identification of Blastocystis from feces is not easy to analyze, as the microscopist needs experience to obtain a good result. Thus, the Ritchie's method is a good concentration method, as it is fast and effective, as demonstrated by other authors 14 .…”
Section: Discussionmentioning
confidence: 95%
“…In the literature, several authors suggest that the search of this protozoan via the direct method 6 , 9 , 12 , trichrome staining and cultivation 1 , 10 , 21 , states that the concentration methods should not be employed for observation of B. hominis as they destroy cell morphology. In this study, both methods, direct and Ritchie's showed higher sensitivity to 89.8%, with a high agreement percentage (97.7%, kappa = 0.92), being appropriate to the diagnosis of Blastocystis .…”
Section: Discussionmentioning
confidence: 99%
“…infection. [ 3 ] Techniques for concentration using formalin–ether may be suitable because preservative liquids are used for storage and dilution of the feces. [ 4 ] Previous epidemiological study of Blastocystis spp.…”
Section: Introductionmentioning
confidence: 99%
“…is the etiological agent of blastocystosis, which is one of the most prevalent intestinal protist parasites found in humans 7 , 8 , 15 , 16 . Its distribution is worldwide, with prevalence rates exceeding 50% in developing countries, especially those in tropical and subtropical regions 1 , 5 , 21 . Higher disease percentages are related to poor hygiene, contact with pets, overcrowding, consumption of contaminated food and water, lack of sanitation and waste disposal 18 , 21 .…”
Section: Introductionmentioning
confidence: 99%