Related Experiment Video
Updated: Aug 29, 2026

Studying Cryptosporidium Infection in 3D Tissue-derived Human Organoid Culture Systems by Microinjection
Published on: September 14, 2019
[Cryptosporidiosis and persistent diarrhea]
A F Cantalice Neto1, M do C Zim, R S Machado
1Fundação Faculdade Federal de Ciências Médicas de Porto Alegre (FFFCMPA), Porto Alegre, RS, Brazil.
Insights
Cryptosporidiosis is common in young children experiencing persistent diarrhea. However, infected children showed similar clinical outcomes and treatment responses compared to uninfected children.
Area of Science:
- Pediatric infectious diseases
- Gastroenterology
- Parasitology
Background:
- Persistent diarrhea in children is a significant health concern.
- Cryptosporidiosis is a known cause of diarrhea, but its prevalence in persistent cases needs further investigation.
Purpose of the Study:
- To determine the incidence of Cryptosporidium infection in infants with persistent diarrhea.
- To compare clinical and laboratory findings between Cryptosporidium-infected and non-infected children.
Main Methods:
- A retrospective study was conducted on 70 infants under two years old with persistent diarrhea, excluding HIV and other causes.
- Data collected included diarrhea duration, hospitalization, nutritional status, and d-xylose test results.
Main Results:
- Cryptosporidium was detected in 14% (20%) of infants, particularly those under three months old (23%).
- Malnutrition was prevalent in 91.5% of all patients, with similar rates in infected and non-infected groups.
- A tendency towards underdosing xylose tests was observed in infected infants, especially within the first year of life.
Conclusions:
- Cryptosporidiosis is a frequent finding in infants with persistent diarrhea.
- Despite its prevalence, Cryptosporidium infection did not significantly alter clinical presentation, prognosis, or therapeutic characteristics compared to other causes.
Abstract:
OBJECTIVE: The association between cryptosporidiosis and persistent diarrhea has been studied in many countries. The aim of this study was to verify the incidence of this parasite in children with persistent diarrhea. Children infected or not with protozoan cryptosporidium were compared in relation to laboratory and clinic analysis.METHODS: Retrospective study in 70 inmate suckling at pediatrics hospital due persistent diarrhea, younger than 2 year, negative HIV, and other causes of diarrhea were ruled out. The duration of diarrhea, hospitalization, clinic modifications, preceding history of diarrhea, nutrition, d-xilosis and diet management were appraised.RESULTS: Criptosporidium sp was founded in 14 (20%) sucking and it was more frequent between children younger than 3 months (13/57, 23%). The duration of hospitalization and diarrhea were similar in both. Malnutrition was been present in 91.5% of patients, 13/14 of infected cryptosporidium children and 51/56 of not infected. The diet management was similar in both. There was a tendency to underdose xilosis of infected patients; mainly at the first year of life (15.9 +/- 8.2 and 33.8 +/- 19.9 p=0.007). CONCLUSION: Cryptosporidiosis is frequent in children with persistent diarrhea. Nevertheless, the infected patients did not differ of others if we consider theirs clinics, prognosis and therapeutics characteristics.
Related Concept Videos
Giardiasis
Fungal Phylum Microsporidia
Amebiasis
Drugs Affecting GI Tract Motility: Antimicrobials as Antidiarrheal Agents
Toxoplasmosis
Cryptococcal Meningitis
