Article 4899 of bionet.general:
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From: denson@sdd.hp.com (Craig Denson)
Newsgroups: bionet.general
Subject: Giardia Cysts
Date: 8 Jul 1993 13:50:30 -0700
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  can anyone tell me how long giardia and giardia cysts can survive
out of water - or point me to some literature? the response to this
question in rec.backcountry was less than definitive. the context for
the question is: what do i need to do when my 'good' water container
gets contaminated  - flushing it is obvious - but i wondered if just
drying it out for a hour or so was sufficient.

craig


Article 4910 of bionet.general:
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From: muriana@aclcb.purdue.edu (Peter M. Muriana)
Subject: Re: Giardia Cysts
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Date: Fri, 9 Jul 1993 13:43:24 GMT
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In article <21i1amINNosc@hpsdlss5.sdd.hp.com>, denson@sdd.hp.com (Craig Denson) writes:
>  can anyone tell me how long giardia and giardia cysts can survive
>out of water - or point me to some literature? the response to this
>question in rec.backcountry was less than definitive. the context for
>the question is: what do i need to do when my 'good' water container
>gets contaminated  - flushing it is obvious - but i wondered if just
>drying it out for a hour or so was sufficient.
>
>craig

Craig,
There's a nice review article in the May '93 issue of Journal of Food 
Protection [vol.56(5):451-461] by James Smith on both Cryptosporidium
(i.e., recent Milwaukee municipal water problem) and Giardia.  It lists the 
survivability of Giardia cysts at various temperatures for so many days, 
etc.  I don't recall anything about drying, but I wouldn't think that 
drying for only 1 hr would be sufficient.  It does list some studies 
examining the effect of various sanitizers
*********************************************************************
*  Peter M. Muriana, Ph.D.		Phone	= (317)-494-8284    *
*  Dept. of Food Science		FAX	= (317)-494-7953    *
*  Purdue University		E-mail	= muriana@aclcb.purdue.edu  *
*  W. Lafayette, IN  47907                                          *
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