Effect of sample holding time on recovery of Cryptosporidium oocysts and Giardia cysts from water samples |
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| Authors: | Robertson L J Gjerde B |
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| Institution: | Seksjon for Parasittologi, Institutt for Farmakologi, Mikrobiologi og Naeringsmiddelhygiene, Norges Veterinaerhogskole, 0033 Oslo, Norway. lucy.robertson@veths.no |
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| Abstract: | U.S. Environmental Protection Agency methods for analysis of water for Cryptosporidium and Giardia stipulate maximum sample holding times which are not always practical to comply with. A spiking experiment indicated that holding times of up to 2 weeks had no significant effect on recovery of these parasites from 10-liter samples of raw water in plastic carboys. |
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