In article <3ivbc8$g76 at mserv1.dl.ac.uk>
<Herveg at bian.ucl.ac.be> writes:
> But it is difficult fo me to imagine that the Amerindians brougth the M.
> tuberculosis with them through the Berhing more tha 10.000 years ago: this
> Berhing and North America crossing seems a kind of selection against those
> bearing it.
>>> Jean-Pierre Herveg
Mycobacteria frequently persists for years in microscoptic tubercules,
causing no symptoms. These may erupt many years after formation
allowing someone to easily be a long ways away from where they were
when they acquired the disease.
Mark Sutherland
Hendrix College
Conway, AR 72032
Sutherlandmv at alpha.hendrix.edu
