text_combined: harleyargotech robert harley james rogers wrote understand growing body genetic evidence european immune systems substantially tougher resistant wider range infectious diseases found peoples around world standard theory europe first major region planet become densely populated urbanized extent urbanized thousand years ago another theory europe rural backyard renaissance certainly compared big urban centres like constantinople baghdad dont know genetic studies speak know one sortof relevant apparently men ashkenazi descent susceptible sicklecell anemia probable reason genetic factor causes also protects women tuberculosis iirc would come handy central european towns time jewish population lot urbanised average joes r httpxentcommailmanlistinfofork mon 19 aug 2002 061119 0200 cest infectious disease alqaedas fantasy ideology