ANTB15H3 Lecture : reading 7.docx
Document Summary
Brieg communication: rethinking the impact of 1918 influenza pandemic on. 1918 influenza pandemic deadly influenza virus (killing 20-40 million & infecting 20 50% of the worlds population) Killed mostly people from ages 15 to 45. Differential rates in rural versus urban settings (mortality was higher in. Infection of lungs, primarily fatal pneumonia towns and cities compared to rural communities) Larger towns and cities had less mortality rates compared to small towns and cities possibly due to better medical care. Secondary pneumonia caused by influenza was exacerbated by tuberculosis. Influenza epidemic had a strong and long lasting effect on differential mortality by sex. Mechanism for change was selection: those with tuberculosis were more likely to die. Males were affected more than females because they were most likely infected by tuberculosis compared to females. Since influenza killed off most males with tuberculosis the number of cases and deaths by tuberculosis had reduced significantly. Male life expectancy became similar to females.
