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In urban communities, less than 1 in 100 inhabitants died from Spanish flu in 1918, but in isolated communities up to 9 out of 10 died. An important explanation for the differences is due to different exposure to influenza in the decades before the Spanish flu came. Those living in urban communities probably had a higher degree of pre-existing immunity that protected against illness and death in 1918 than those living in very isolated rural areas. This is shown in a new study from the Norwegian Institute of Public Health.

Research by McGill Sociology Professor Eran Shor, working in collaboration with researchers from Stony Brook University, has revealed that unemployment increases the risk of premature mortality by 63 per cent. Shor reached these conclusions by surveying existing research covering 20 million people in 15 (mainly western) countries, over the last 40 years.