Nematodes immune to anthelm. ?

Ian Barger ibarger at northnet.com.au
Wed Jan 22 00:35:20 EST 1997


At 00:33 22/01/97 GMT, Paul wrote:
>Can anyone tell me why nematodes are becoming immune to 
>anthelminphic drugs ?
>
>Thanks
>
Paul,

The simplest answer is that the worms that happen (by chance) to be
resistant to the drug leave more progeny than those that are susceptible.
Selection does the rest!  The more the drug is used, the greater the
advantage enjoyed by the resistant worms.

Ian




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