INACTIVATION OF CRYPTOSPORIDIUM PARVUM OOCYSTS WITH OZONE

Courtesy Recent Science Inventory records from the EPA  Mon, 11/10/2008 - 16:04

Ozone inactivation rates for Cryptosporidium parvum (C. parvum) oocysts were determined with an in-vitro excystation method based on excysted sporozoite counts.

Results were consistent with published animal infectivity data for the same C. parvum strain. The inactivation kinetics for C. parvum were characterized by a lag phase followed by pseudo-first order kinetics.

The magnitude of the lag phase was affected by the oocyst preparation procedures suggesting that the shoulder in the inactivation curve related to ozone demand created by residual...

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