Reply #24: I read that as well. His hypothesis as to why it killed the young and vigorous

[Phoebe Loosinhouse]

and strangely did not have as high a death rate with the elderly/very young is that the people with the BEST immune systems had those systems run amok and stop being able to distinguish pathogen from normal cells so in effect their own immune systems killed them. From what I recall - I read it awhile ago.