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Volume 14, Number 1—January 2008


Cryptosporidiosis and Filtration of Water from Loch Lomond, Scotland

Kevin G.J. Pollock*Comments to Author , David Young†, Huw V. Smith‡, and Colin N. Ramsay*
Author affiliations: *Health Protection Scotland, Glasgow, Scotland, UK; †University of Strathclyde, Glasgow, Scotland, UK; ‡Scottish Parasite Diagnostic Laboratory, Glasgow, Scotland, UK;

Main Article

Table 2

Age distribution of cryptosporidiosis case-patients, Loch Lomond, Scotland

Water source Relation to enhanced water filtration* No. Mean, y Median, y Range, y
Loch Lomond Before 341 16.14 8.0 3–92
After 171 16.43 8.0 1–72
Other Before 726 20.50 13.0 3–99
After 1,226 20.24 13.0 0–88

*Coagulation and rapid gravity filtration, introduced in November 1999.

Main Article