Jan Drew
July 27th 06, 05:55 AM
Bryan Heit" > wrote in message
...
<snip mile long of websites>
As some one who studies the immune system for a living I
can say this without exemption. In fact, vaccines have been a valuable
tool in understanding how our immune system works. After all, we had
vaccines long before we even knew the immune system existed.
You sure about that?
...
<snip mile long of websites>
As some one who studies the immune system for a living I
can say this without exemption. In fact, vaccines have been a valuable
tool in understanding how our immune system works. After all, we had
vaccines long before we even knew the immune system existed.
You sure about that?