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Question: Explain events that led to the influenza pandemic immediately after WW1. Discuss how this historic set of circumstances has relevance to present day global population health. Answer: Environment and Population Health The influenza pandemic during the year 1918-1919 is also called Spanish Flu and this disease led to the death of 50 million people worldwide. The deaths are far more in comparison to the deaths caused by the World War I (1914-18). It is also estimated that this Spanish Flu has killed around 3 percent to 6 percent of the global population (Beaumont, 2013). World war I was a turning point in travelling, people started to travel long distances and this led to the spread of the infectious diseases from one place to another. Whereas, the people living in the rural areas remain unaffected by the disease without getting exposed to the disease (Chertow Memoli, 2013). A large number of troops mobilised from one continent to another and this disturbed the life of the civilians. From the latter part of the August 1918, the viruses started spreading around the world that infected almost everyone that came in contact. Considering the present day condition, the improvements in the travel and healthcare has led to the has led to the protection of the health of the general people. The present-day diseases like bird flu and SARS do not remain confined within a geographical area. Rather, the movement of people from one place to another and the spread of the germs through the air has led to the ever-increasing burden on the health sector industries (Wiwanitkit et al., 2013). References Beaumont, J. (2013). Broken Nation: Australians in the Great War. Allen Unwin. Chertow, D. S., Memoli, M. J. (2013). Bacterial coinfection in influenza: a grand rounds review. Jama, 309(3), 275-282. Wiwanitkit, V., Shi, B., Xia, S., Yang, G. J., Zhou, X. N., Liu, J. (2013). Research priorities in modeling the transmission risks of H7N9 bird flu. Infectious diseases of poverty, 2(1), 17.