Post-Polio Syndrome Threat

Up to 20 million polio survivors could be at risk of developing
further disabilities decades after their original illness.

A report by a voluntary health agency in the United States says that
the little understood post-polio syndrome (PPS) could mean that
individuals will need wheelchairs and ventilators for the rest of
their lives. Science In Action reports.
more at :

http://www.bbc.co.uk/worldservice/sci_tech/highlights/010615_postpolio.shtml