On Fri, 22 Sep 2006 17:25:01 -0400, Robert Kesterson <[log in to unmask]>  
wrote:

> On Fri, 22 Sep 2006 15:34:25 -0500, Keith Thomas <[log in to unmask]> wrote:
>>
>> Well, no remedy for this cold, but I should point out
>> that in the Palaeolithic, colds were not a problem.
>
> How can we know this?
>


During my winters in the Canadian high Arctic, it was well known that you  
could only get a cold if someone had come in from the filthy southland.  
Usually Edmonton, AB.
IIRC this applied for all infectious diseases.
Living was quite dense.

William