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Cryptosporidium

Stephen G. Kayes kayes at SUNGCG.USOUTHAL.EDU
Sat Nov 18 15:24:28 EST 1995


Butch:

	According to Markel and Voege, Medical Parasitology, 7th Ed., 
page 87:

	"In doudenal biopsy specimens, the gametes or schizonts, either 
immature or mature, containing four or eight merozoites; average size is 
2 to 4 micrometers (micra).  In fresh stool or concentrate, oocyts, each 
containing four sporozoites (without sporocysts); average size is 4 to 5 
micrometers.  

	Thus, the answer seems to be that a 1 micron filter will remove 
the organisms from water assuming there are no breaks in the mesh.  If 
this filter is going to be used for personal water and there is extreme 
concern for blocking transmission, I might recommend boiling drinking 
water prior to use.  Not necesarily convenient, but effective.

	Hope this is what you were looking for.

	Steve Kayes

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On 17 Nov 1995, Bernard Butch Garcia wrote:

> Can anyone tell me, what is the size of Cryptosporidium in microns? And
> whether a ceramic 1 micron filter remove Cryptosporidium, if it is
> found in the water?
> 
> Thanks,
> Butch
> 
> 



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