Abstract
The first case of Influenza A(H1N1) occurred on Mar. 2009, when human infection with swine flu epidemic broke out in Mexico. The influenza quickly spreaded throughout the world. The WHO referred it initially as human infection with swine flu, but later nominated it as Influenza A(H1N1). On June 11, 2009, WHO declared to raise its epidemic alarming level to grade VI, signaling its prevailing worldwide. The clinical symptoms of Influenza A(H1N1) were similar to those of regular human seasonal influenza. However, Mexico saw its high mortality rate, quicker spreading rate and susceptibility in general population.
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© 2013 Springer Science+Business Media B.V., Dordrecht and Tsinghua University Press
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Hongjun, L., Ning, L. (2013). Epidemiology of Influenza A (H1N1). In: Li, H., Li, N. (eds) Radiology of Influenza A (H1N1). Springer, Dordrecht. https://doi.org/10.1007/978-94-007-6162-9_3
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DOI: https://doi.org/10.1007/978-94-007-6162-9_3
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