Background: Blood collection following nonstandard operations largely increases the risks of infectious diseases through cross-contamination. Commercial plasma donation and the resulting HIV/AIDS and hepatitis C epidemics in central China in the 1990s killed more than one million people. Many...

People who are unable to maintain the same standard of living as others around them experience a sense of relative deprivation that has been shown to reduce feelings of well-being. Relative deprivation reflects conditions of worsening relative poverty despite striking reductions in absolute...