Related Experiment Video
Updated: Aug 20, 2026

Construction of a Low-cost Mobile Incubator for Field and Laboratory Use
Published on: March 19, 2019
Is there an association between bacteriological drinking water quality and childhood diarrhoea in developing
P K Jensen1, G Jayasinghe, W van der Hoek
1Department of International Health, Institute of Public Health, University of Copenhagen, Copenhagen, Denmark. p.k.jensen@pubhealth.ku.dk
Insights
No link found between drinking water bacteria and childhood diarrhea in Pakistan. Contamination in household containers, not water sources, showed a weak, non-significant trend with diarrhea incidence.
Area of Science:
- Environmental microbiology
- Public health
- Pediatrics
Background:
- Childhood diarrhea remains a significant health issue globally.
- Bacteriological quality of drinking water is a key factor in disease transmission.
- Understanding contamination points is crucial for effective prevention strategies.
Purpose of the Study:
- To examine the relationship between drinking water bacteriological quality and childhood diarrhea incidence.
- To differentiate the impact of source water versus domestic storage contamination.
Main Methods:
- A 1-year prospective study in southern Punjab, Pakistan.
- Weekly monitoring of diarrhea episodes in children under 5 years.
- Weekly assessment of drinking water sources and household storage containers for Escherichia coli.
Main Results:
- No statistically significant association was found between Escherichia coli in public drinking water sources and diarrhea incidence.
- A non-significant trend suggested a possible link between Escherichia coli in household storage and diarrhea.
- High fecal contamination levels were observed in domestic water containers, irrespective of source water quality.
Conclusions:
- Public drinking water quality alone may not significantly impact endemic childhood diarrhea.
- Domestic water storage practices likely play a critical role in fecal contamination.
- Interventions targeting household water management are essential for reducing diarrhea incidence.
Abstract:
To investigate the association between bacteriological drinking water quality and incidence of diarrhoea, we conducted a 1-year prospective study in the southern Punjab, Pakistan. Diarrhoea episodes, drinking water sources and drinking water quality were monitored weekly among children younger than 5 years in 200 households. We found no association between the incidence of childhood diarrhoea and the number of Escherichia coli in the drinking water sources (the public domain). A possible trend was seen relating the number of E. coli in the household storage containers (the domestic domain) and diarrhoea incidence, but this did not reach statistical significance. Faecal contamination levels in household water containers were generally high even when the source water was of good quality. Under conditions such as this, it is questionable whether public water treatment will have a significant impact on the incidence of endemic childhood diarrhoea.
Related Concept Videos
Cholera
Reservoir of Infection
Bacterial Gastroenteritis
Drugs Affecting GI Tract Motility: Antimicrobials as Antidiarrheal Agents
Development of Human Microbiota
Giardiasis
