Re: RC: Stress-Dr. Newell epm

["C.M.Newell" <reshan@deyr.ultranet.com>]

>Worms, yes indeed are a health problem, but the chemicals used that are
>"host specific" as Mr. Tivers stated are eliminated and processed
>through the kidneys and liver of the horse, are they not?   


Depends on the wormer. Pyrantel, for instance, is very poorly absorbed by
the GI tract of the horse, which is why it is a good dewormer--it stays
where the nematodes are.   A 20-fold overdose results in no elevation in
liver enzymes.

 
>I am very aware the cause and transmition of aids and epm are quite
>different but in both the host surcumbs
>because of a depressed immune system.  I will try to find the article by
>the Dr. that drew that parrallel. 

	You could make that argument about *any* infection. Does that make HIV
equivalent to influenza, bacterial pneumonia, or osteomyelitis?
	The main pathogenic feature of HIV is that it *targets* cells of the
immune system. It does not gain a foothold because the victim is
immunocompromised--it *causes* the compromise, hence HIV+ individuals are
at risk for other infections.
	EPM does not target the immune system. 

			--CMNewell, DVM




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