Originally Posted By sandia
Filtering has become, undeniably, a prevailing cultural practice; a norm of the subculture of U.S. backpackers.

Yet there is sufficient evidence to suggest that the practice is not a useful means of avoiding disease.


CDC Info on Giardiasis
...

According to the info provided there giardia is found in throughout the nation and there are about 20,000 cases reported each year.

Backpackers among the risk groups for giardiasis.

Filtering water is one of the three ways consistently recommended for backpackers to prevent it when drinking water taken from outdoor sources.

There are references with links to sources for that here too.


Edited by aimless (04/25/12 05:11 PM)
Edit Reason: removed two personally directed remarks
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