ArticlePLoS neglected tropical diseases2015
Prevalence of Cryptosporidium parvum/hominis, Entamoeba histolytica and Giardia lamblia among Young Children with and without Diarrhea in Dar es Salaam, Tanzania.
Article in PLoS neglected tropical diseases, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 5 of them syntheses that pooled it.
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Who cites it
44 citing papers in PubMed, 5 syntheses or guidelines pooled it, 82 citations in OpenAlex.
- The Global Prevalence of and Factors Associated with Parasitic Coinfection in People Living with Viruses: A Systematic Review and Meta-Analysis.Pathogens (Basel, Switzerland) · 2025Pooled it
- Diarrheal diseases prevalence among children of Sudan and socio cultural risks related; systematic review and meta analysis.BMC infectious diseases · 2024Pooled it
- A 'One Health' perspective of Africa-wide distribution and prevalence of Giardia species in humans, animals and waterbodies: a systematic review and meta-analysis.Parasitology · 2023Pooled it
- Understanding the Impact of Rainfall on Diarrhea: Testing the Concentration-Dilution Hypothesis Using a Systematic Review and Meta-Analysis.Environmental health perspectives · 2020Pooled it
- Cryptosporidiosis in HIV-positive patients and related risk factors: A systematic review and meta-analysis.Parasite (Paris, France) · 2020Pooled it
- The triple threat of Cryptosporidium, Giardia, and Entamoeba infections in Nigerian children.Scientific reports · 2026Article
- Risk Factors and Circulating Subtypes ofMicroorganisms · 2025Article
- Environmental Exposures Associated with Enteropathogen Infection in Six-Month-Old Children Enrolled in the ECoMiD Cohort along a Rural-Urban Gradient in Northern Ecuador†.Environmental science & technology · 2025Article
- Fine scale mapping of water sources in low-income settings: A comparative study in Misungwi, Tanzania.PloS one · 2025Article
- Immunogenicity and safety of anHuman vaccines & immunotherapeutics · 2024Article
- Prevalence and assemblage of Giardia duodenalis in a case-control study of children under 5 years from Jimma, Southwest Ethiopia.Parasitology research · 2023Article
- The opportunistic protist,Emerging microbes & infections · 2023Article
- Molecular Epidemiology and Assemblage Typing of Giardia duodenalis in School-Age Children Situated along the Southern Shoreline of Lake Malawi, Malawi.The American journal of tropical medicine and hygiene · 2023Article
- Giardia duodenalis in Ugandan Children Aged 9-36 Months in Kampala, Uganda: Prevalence and Associated Factors.The American journal of tropical medicine and hygiene · 2023Article
- Citrulline and kynurenine to tryptophan ratio: potential EED (environmental enteric dysfunction) biomarkers in acute watery diarrhea among children in Bangladesh.Scientific reports · 2023Article
- Uncovering the genetic diversity of Giardia intestinalis in isolates from outbreaks in New Zealand.Infectious diseases of poverty · 2022Article
- Article
- Molecular Characterisation ofPathogens (Basel, Switzerland) · 2021Article
- High Frequency ofPathogens (Basel, Switzerland) · 2021Article
- Intestinal protozoa in hospitalized under-five children with diarrhoea in Nampula - a cross-sectional analysis in a low-income setting in northern Mozambique.BMC infectious diseases · 2021Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAlthough enteroparasites are common causes of diarrheal illness, few studies have been performed among children in Tanzania. This study aimed to investigate the prevalence of Cryptosporidium parvum/hominis, Entamoeba histolytica and Giardia lamblia among young children in Dar es Salaam, Tanzania, and identify risk factors for infection. METHODOLOGY/PRINCIPAL
findingsWe performed an unmatched case-control study among children < 2 years of age in Dar es Salaam, recruited from August 2010 to July 2011. Detection and identification of protozoans were done by PCR techniques on DNA from stool specimens from 701 cases of children admitted due to diarrhea at the three study hospitals, and 558 controls of children with no history of diarrhea during the last month prior to enrollment. The prevalence of C. parvum/hominis was 10.4% (84.7% C. hominis), and that of G. lamblia 4.6%. E. histolytica was not detected. The prevalence of Cryptosporidium was significantly higher in cases (16.3%) than in controls (3.1%; P < 0.001; OR = 6.2; 95% CI: 3.7-10.4). G. lamblia was significantly more prevalent in controls (6.1%) than in cases (3.4%; P = 0.027; OR = 1.8; 95% CI: 1.1-3.1). Cryptosporidium infection was found more often in HIV-positive (24.2%) than in HIV-negative children (3.9%; P < 0.001; OR = 7.9; 95% CI: 3.1-20.5), and was also associated with rainfall (P < 0.001; OR = 2.41; 95% CI: 1.5-3.8). Among cases, stunted children had significantly higher risk of being infected with Cryptosporidium (P = 0.011; OR = 2.12; 95% CI: 1.2-3.8). G. lamblia infection was more prevalent in the cool season (P = 0.004; OR = 2.2; 95% CI: 1.3-3.8), and more frequent among cases aged > 12 months (P = 0.003; OR = 3.5; 95% CI: 1.5-7.8). Among children aged 7-12 months, those who were breastfed had lower prevalence of G. lamblia infection than those who had been weaned (P = 0.012).
conclusionsCryptosporidium infection is common among young Tanzanian children with diarrhea, particularly those living with HIV, and infection is more frequent during the rainy season. G. lamblia is frequently implicated in asymptomatic infections, but rarely causes overt diarrheal illness, and its prevalence increases with age.
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