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Figure 1 | BMC Medicine

Figure 1

From: Real-time numerical forecast of global epidemic spreading: case study of 2009 A/H1N1pdm

Figure 1

Natural history of influenza. After acquiring the infection, a susceptible individual enters the latent compartment, where he is infected but not yet infectious. After the average latency period, each infected individual becomes infectious, and may or may not show symptoms. Symptomatic cases are more infectious than asymptomatic cases. Finally, all infected individuals recover after the average infectious period and become immune to the disease.

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