Rich-poor divide in past flu pandemics must guide strategy today

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Andrzej Krauze

WITH hopes high that the northern hemisphere flu season is about to recede, it seems a good time to point out that, unlike annual outbreaks that fade as spring arrives, flu pandemics don’t respect seasons. A hundred years ago, the worst such pandemic on record was just starting – the first case was recorded on 4 March 1918 – and north of the equator it wouldn’t peak until the autumn.

In this centenary year of Spanish flu, a lot of ink has been spilled on the inevitability of another flu pandemic. One aspect that gets little …