In reply to David Roberson's message of Wed, 8 Oct 2014 23:40:42 -0400: Hi, >Is it possible that most people have a natural immunity to the virus that >prevents them from getting the disease? Those few that are not immune then >would be the ones that have a low survival rate. > >If this were the case, the virus might be capable of spreading by way of the >air. The Spanish lady apparently received a dose of the disease even when >covered well with the best protection and little apparent body fluid contact >if any at all. > >Has it been established that no one has natural immunity or is that just an >assumption? > >Dave
If the mortality rate is about 40-60%, doesn't that means that the remainder have sufficient natural immunity? Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html