Destruction of oocysts of Cryptosporidium parvum by sand and chlorine

Destruction of oocysts of Cryptosporidium parvum by sand and chlorine

Cryptosporidium parvum oocysts were shaken with sand at intervals ranging from 5 min to 2 h. Oocyst viability was assessed by the inclusion or exclusion of two fluorogenic vital dyes. After shaking with sand for 5 min, 90 min and 2 hours the number of non-viable oocysts increased significantly to 50...

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Veröffentlicht in:Water research (Oxford) 1993, Vol.27 (4), p.729-731
Hauptverfasser: Parker, J.F.W., Smith, H.V.
Format: Artikel
Sprache:eng
Schlagworte:
Air. Soil. Water. Waste. Feeding
Biological and medical sciences
chlorine
Cryptosporidium
Cryptosporidium parvum oocysts
Environment. Living conditions
internal contents
Medical sciences
Public health. Hygiene
Public health. Hygiene-occupational medicine
sand
shaking
viability
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Smith, H.V.
description Cryptosporidium parvum oocysts were shaken with sand at intervals ranging from 5 min to 2 h. Oocyst viability was assessed by the inclusion or exclusion of two fluorogenic vital dyes. After shaking with sand for 5 min, 90 min and 2 hours the number of non-viable oocysts increased significantly to 50%, 99.7% and 100% respectively. Increasing the duration of shaking caused non-viable oocysts to lose their contents and fragment. Following agitation with sand for 5 min and subsequent chlorination for 5 min, there was an increase in the number of non-viable oocysts to 68.02%.
doi_str_mv 10.1016/0043-1354(93)90184-J
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subjects Air. Soil. Water. Waste. Feeding
Biological and medical sciences
chlorine
Cryptosporidium
Cryptosporidium parvum oocysts
Environment. Living conditions
internal contents
Medical sciences
Public health. Hygiene
Public health. Hygiene-occupational medicine
sand
shaking
viability
title Destruction of oocysts of Cryptosporidium parvum by sand and chlorine
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