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How long do toxicara eggs last in soil?

Charles T. Faulkner ctfaulkn at utkux.utcc.utk.edu
Wed Jan 31 09:40:51 EST 1996

On Mon, 29 Jan 1996, Peter wrote:

> How many months do the eggs take to decay in the soil? 

Toxocara eggs can remain viable in the soil for a long period of time,
for several months and possibly years with optimal environmental 
conditions (moderate avg annual temperature and good humidity).  
The eggs withstand freezing temperatures in temperate climates (.2 C 
under the snow) but are suscepible to dessication in arid climates.  
Additional information on prevention of Toxocara VLM is available on the 
WWW at:   http://www.cdc.gov/ncidod/publications/brochures/hookworm.htm 

You may also find the review of experimental work on Ascaris 
suumm and Toxocara egg survival in Levine's "Nematode Parasites of Domestic 
Animals and Man" (pages 271, 281) helpful. The book is out of print, but 
perhaps you can getit via interlibrary loan.  Hope this is helpful. Good luck.

*      Charles T. Faulkner       *   Get your facts first and then you
*  Univ of Tennessee, Knoxville  *   can distort them as much as you please.
*     (ctfaulkner at utk.edu)       *                Mark Twain

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