In a message dated 1/2/01 10:19:25 AM Eastern Standard Time,
[log in to unmask] writes:

>
>  If putting pressure on a population always causes it to become resistant I
>  do not understand how we got smallpox under control. You would have thought
>  that resistance would have emerged and a stronger version of the virus
taken
>  over.
>
Had the approach to smallpox been to use antibiotics this would have been
likely to happen.  Innoculation trained our bodies to recognize and kill the
smallpox.