Environmental inactivation of Cryptosporidium oocysts in catchment soils

Aims:  To generate field‐relevant inactivation rates for Cryptosporidium oocysts in soil that may serve as parameter values in models to predict the terrestrial fate and transport of oocysts in catchments. Methods and Results:  The inactivation of Cryptosporidium oocysts in closed soil microcosms ov...

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Bibliographic Details
Published in:Journal of applied microbiology 2005-01, Vol.98 (2), p.308-317
Main Authors: Davies, C.M., Altavilla, N., Krogh, M., Ferguson, C.M., Deere, D.A., Ashbolt, N.J.
Format: Article
Language:English
Subjects:
Animals
Biological and medical sciences
catchment
Cryptosporidium
Environmental Monitoring - methods
Fundamental and applied biological sciences. Psychology
In Situ Hybridization, Fluorescence
inactivation
Microbiology
Oocysts
pathogens
Soil
Soil Microbiology
Temperature
Time Factors
Water Purification
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Summary:Aims:  To generate field‐relevant inactivation rates for Cryptosporidium oocysts in soil that may serve as parameter values in models to predict the terrestrial fate and transport of oocysts in catchments. Methods and Results:  The inactivation of Cryptosporidium oocysts in closed soil microcosms over time was monitored using fluorescence in situ hybridization (FISH) as an estimate of oocyst ‘viability’. Inactivation rates for Cryptosporidium in two soils were determined under a range of temperature, moisture and biotic status regimes. Temperature and soil type emerged as significantly influential factors (P 
ISSN:1364-5072
1365-2672
DOI:10.1111/j.1365-2672.2004.02459.x