Abstract:Cystoisospora belli is a coccidian parasite of humans, with a direct fecal–oral transmission cycle. It is globally distributed, but mainly found in tropical and subtropical areas. Many cases of C. belli infections have been reported in patients with HIV, and in patients undergoing immunosuppressive therapy for organ transplants or those treated for tumours worldwide. Unsporulated or partially sporulated oocysts of C. belli are excreted in feces. When sporulated oocysts in contaminated water or food are ingeste… Show more
“…The unsporulated oocysts of C. cayetanensis in fresh feces are 8-10 lm in diameter (Almeria et al, 2019); their dimensions in histological sections have not been reported before. In the immunosuppressed patient reported here, C. cayetanensis-like oocysts were found in bile drainage; the oocysts in Ziehl-Neelsenstained smears were pink and 10 lm in diameter (de Go´rgolas et al, 2001).…”
Section: Discussionmentioning
confidence: 77%
“…The parasitic stages of C. cayetanensis are one of the smallest in size among coccidian parasites. Cystoisospora belli is the other coccidian known to parasitize intestines, bile ducts, and gallbladder of humans (Dubey and Almeria, 2019). However, schizonts and gamonts of Cystoisospora belli are more than twice the size of C. cayetanensis .…”
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“…The unsporulated oocysts of C. cayetanensis in fresh feces are 8-10 lm in diameter (Almeria et al, 2019); their dimensions in histological sections have not been reported before. In the immunosuppressed patient reported here, C. cayetanensis-like oocysts were found in bile drainage; the oocysts in Ziehl-Neelsenstained smears were pink and 10 lm in diameter (de Go´rgolas et al, 2001).…”
Section: Discussionmentioning
confidence: 77%
“…The parasitic stages of C. cayetanensis are one of the smallest in size among coccidian parasites. Cystoisospora belli is the other coccidian known to parasitize intestines, bile ducts, and gallbladder of humans (Dubey and Almeria, 2019). However, schizonts and gamonts of Cystoisospora belli are more than twice the size of C. cayetanensis .…”
BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.
“…Other intestinal parasites such as Cryptosporidium sp., Cystoisospora belli, and Strongyloides stercoralis are commonly found in immunocompromised hosts [4,8]. Symptoms and treatment of the intestinal parasitic infections previously cited have been described elsewhere [9][10][11][12][13][14][15][16][17].…”
Introduction: Intestinal parasites are known to cause infection in humans worldwide, with higher prevalence in low- and middle- incoming countries. Children are greatly affected leading to malnutrition and subsequently to physical and cognitive development impairment. Despite the scale and importance of this issue, there are few studies conducted in Mozambique concerning parasitic intestinal infections in hospitalized children. To our knowledge this is the first published report with data on this subject from Northern Mozambique.
Methodology: A cross-sectional study was conducted in 2012 and 2013 in 831 children, attending the Central Hospital of Nampula in Northern Mozambique. One single stool sample was obtained from each child. Socio-demographic and clinical data were also obtained. Parasitological analysis of feces was performed through direct examination and Ritchie concentration technique and Giardia duodenalis antigen detection by rapid immunochromatographic test. Modified Ziehl-Neelsen staining was used for coccidia detection.
Results: The global prevalence of pathogenic intestinal parasites was 31.6%. G. duodenalis (23.9%) was by far the most prevalent parasite followed by Strongyloides stercoralis (4.1%) and Cryptosporidium sp. (3.4%). Intestinal parasites were more frequent in older children (p = 0.005; aOR = 1.025).
Conclusions: This work is one of the few published studies reporting intestinal parasites infection in hospitalized children. The percentage of children affected with G. duodenalis is higher than found in other studies in the African region. This highlights the need of particular attention being given to this intestinal protozoan and its resistance to water treatment, as well as to environmental health and personal hygiene.
“…Mild-to-moderate self-limiting diarrhea is common in immune-competent patients. Patients with immune dysfunction can experience severe disease with prolonged diarrhea, anorexia, and weight loss (Almeria et al, 2019;Dubey and Almeria, 2019). Microscopy using acid-fast staining is the most widely used screening technique for the diagnosis of C. cayetanensis and C. belli with or without stool concentration (Ribes et al, 2004).…”
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