JOHANNESBURG – A decade ago, there were plenty of doomsday forecasts asserting the AIDS pandemic would sharply curtail African economic growth with a particular focus on its impact on food security.

But a series of bumper maize harvests in two of the countries worst-hit by the disease, Zambia and Malawi, suggest the region’s economies have not followed this script, thanks in part to trectment programmes and farm subsidies.

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