Will there ever be a Vaccine to HIV?

Jack Hamilton jfh at crl.com
Wed Mar 1 23:38:46 EST 1995

>>Remember, a parasite is better off if it doesn't kill its host.
>        Not necessarily, sometimes negative effects to the host are
>necessary for the propagation of the parasite.  Take malaria for example,
>it kills 1 million a year, this is how the parasite can get transmitted
>effectively, by reproducing to large enough numbers that a subsequent
>mosquito bite will cause parasites to be taken up and transmitted to new
>hosts.  Unfiortunately this often results in the death of the host.

This is not an example of a negative effect being necessary for the 
propagation of the parasite.  You would need to show that malaria couldn't
be transmitted with smaller host concentrations. 


Jack Hamilton  jfh at crl.com  KD6TTL  '92 K75RTA  co-moderator, sci.med.aids

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