Swine flu: Can science save us from the second wave?
Science
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Flu pandemics historically come in waves, often getting worse as they go. The deadly one of 1918, which was also the last H1N1 pandemic, did just that. “So did pandemics in 1890, 1847, 1781 and others,” says Lone Simonsen of George Washington University in Washington DC, who has studied the …