[pct-l] CDC recommendations for water treatment

Bill Burge bill at burge.com
Fri Oct 22 12:08:48 CDT 2010


Why should I explain "their reference"?  

They didn't, but you seem to feel the need to...

Knock yourself out.

The studies that you trash are from universities and and an independent lab.  I'm sure they're all in on the conspiracy to sell Steripens.  I can be such a sucker for these sort of things...  ;-)

Yes, Brick; I'm done with this thread...  

BillB



On Oct 22, 2010, at 8:32 AM, jcil000-pctchat at yahoo.com wrote:

> Now that I admitted my error in posting my interpretation that the CDC was 
> obliquely referencing the Steri Pen
> in the statement, please tell us Bill which other product on the market fits 
> that description as given on the CDC
> webpage??
> 
> This is not a contest. Do you have an explanation for their reference? Another 
> product?
> 
> I would also like to repeat myself. The CDC is recognized internationally as the 
> top experts in
> medical science. I'm afraid anything that the Steri Pen company points to is 
> simply not at the 
> 
> CDC level. The CDC trumps any "independent lab" research provided by a company 
> where
> there might be a conflict in testing results. To deny that is amusing.
> 
> I might add that the Steri Pen company itself warns that its product is not 
> highly effective
> in water that is more than mildly cloudy / turbid. 
> 
> 
> 
> 
> 
> 
> ________________________________
> From: Bill Burge <bill at burge.com>
> Cc: PCT MailingList <pct-l at backcountry.net>
> Sent: Thu, October 21, 2010 7:03:57 PM
> Subject: Re: [pct-l] CDC recommendations for water treatment
> 
> You need to avoid altering content that you indicate as "transcribing".
> 
> The line from your post:
> 
> "5)   Ultraviolet light treatment of water is not effective   against 
> Cryptosporidium at normally-used levels. i.e. Steri Pen type products."
> 
> is NOT the same as what is in the original page:
> 
> "Ultraviolet light treatment of water is not effective against Cryptosporidium 
> at normally-used levels."
> 
> 
> That is not transcribing.  It is "interpretation".
> 
> Steripen's site points to a number of independent tests that DO indicate 
> effectiveness against cyryptosporidium.
> http://www.steripen.com/micro-biological-testing
> 
> 
> BillB
> 
> 
> On Oct 21, 2010, at 6:34 PM, jcil000-pctchat at yahoo.com wrote:
> 
>> The following recommendations by the Centers for Disease Control (CDC) are 
>> useful in 
>> 
>> the avoidance of infection by Cryptosporidium. 
>> 
>> To avoid Crypto infection, they advise the following:
>> 
>> 1)  That the use of water filters which  an “absolute one micron” filter, or a 
> 
>> filter   certified to remove Cryptosporidium under NSF International Standard  
> 
>> #53 or #58 for either “cyst removal” or “cyst reduction” be used. (see A Guide 
> 
>> to Water Filters for more   information.
>> 
>> 2) That Cryptosporidium is poorly inactivated by chlorine or iodine  
>> disinfection.***
>> ***The product sold by REI called "Potable Aqua / Chlorine Dioxide Water 
>> Purification Tablets" claims effectiveness in four hours.
>> The down side to this product is that it "causes irreversible eye damage" if 
>> the 
>> 
>> user gets residue into his/her eyes.
>> 
>> 3) That boiling at a rolling boil for 1 minute (at altitudes greater than 6,562 
>> 
>> feet   (>2,000 m), boil water for 3 minutes) 
>> 
>> is recommended.
>> 
>> 4)  Cryptosporidium is not killed by alcohol gels and hand sanitizers.
>> 
>> 5)   Ultraviolet light treatment of water is not effective   against 
>> Cryptosporidium at normally-used levels. i.e. Steri Pen type products.
>> 
>> CDC web links below:
>> 
>> http://www.cdc.gov/crypto/gen_info/filters.html
>> 
>> http://www.cdc.gov/crypto/health_professionals/bwa/dialysis.html
>> 
>> If I made a mistake in transcribing this information for my hiking friends, 
>> please post corrections but I think I've summed up their information.
>> 
>> Also, in closing, the weblink shows wording by manufacturers which might be 
>> misleading while reading a product label. Be sure to read that
>> CDC warning.
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