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Cryptosporidium species causing acute diarrhoea in children in Antananarivo, Madagascar

M Areeshi1, W Dove, D Papaventsis

  • 1Department of Medical Microbiology, University of Liverpool, Duncan Building, Liverpool, UK.

Annals of Tropical Medicine and Parasitology
|May 31, 2008
PubMed

Insights

Cryptosporidiosis caused 5.6% of acute diarrhea in Madagascar children. Most cases were linked to Cryptosporidium hominis, suggesting human-to-human spread, particularly during the rainy season.

Area of Science:

  • Infectious Diseases
  • Pediatrics
  • Parasitology

Background:

  • Acute diarrheal disease is a major cause of childhood morbidity globally.
  • Cryptosporidiosis is an important parasitic cause of diarrhea in children.
  • Understanding the epidemiology and transmission of cryptosporidiosis is crucial for public health interventions.

Purpose of the Study:

  • To investigate the prevalence and characteristics of cryptosporidiosis in children with acute diarrhea in Antananarivo, Madagascar.
  • To identify the Cryptosporidium species and subtypes involved in pediatric diarrhea during the study period.

Main Methods:

  • A 13-month prospective study was conducted involving 215 children with acute diarrhea.
  • Diagnostic methods were used to detect Cryptosporidium in stool samples.
  • Subtyping of Cryptosporidium isolates was performed using GP60/45/15 gene polymorphisms.

Main Results:

  • Cryptosporidiosis was diagnosed in 12 (5.6%) of the 215 children.
  • All cases occurred during the rainy season.
  • Cryptosporidium hominis (11 cases) was the predominant species, with one case of C. parvum.
  • Subtypes Ia, Id, Ie, and IIc were identified.

Conclusions:

  • Cryptosporidiosis is a relevant cause of acute diarrhea in children in Antananarivo, Madagascar.
  • The findings suggest anthroponotic transmission of Cryptosporidium hominis.
  • Seasonal patterns and specific subtypes highlight potential transmission dynamics.

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