Senecal-Smith, Jenna
- Department of Energy and Technology, Swedish University of Agricultural Sciences
Abstract
Soil-transmitted helminths (STH) are intestinal worms that infect 24% of the world's population. Stopping the spread of STH is difficult, as the eggs are resilient (can withstand high pH) and persistent (can remain viable in soils for several years). To ensure that new sanitation systems can inactivate STH, a better understanding of their resilience is required. This study assessed the inactivation ofAscariseggs under various conditions, in terms of moisture content (MC) (90%), temperature (20-50 degrees C) and pH (7-12.5). The results highlight that the exposure ofAscariseggs to elevated pH (10.5-12.5) at temperatures 70 days had no effect on egg viability. Compounding effects of alkaline pH (>= 10.5) or decreasing MC (
Keywords
disease transmission; helminths; nutrient recycling; sanitisation; STH
Published in
Journal of Water and Health
2020, volume: 18, number: 3, pages: 375-382
SLU Authors
Nordin, Annika
- Department of Energy and Technology, Swedish University of Agricultural Sciences
- Department of Energy and Technology, Swedish University of Agricultural Sciences
Vinnerås, Björn
- Department of Energy and Technology, Swedish University of Agricultural Sciences
- Department of Energy and Technology, Swedish University of Agricultural Sciences
UKÄ Subject classification
Soil Science
Public Health, Global Health and Social Medicine
Epidemiology
Publication identifier
- DOI: https://doi.org/10.2166/wh.2020.264
Permanent link to this page (URI)
https://res.slu.se/id/publ/105755