Stunting rates range between 10% in prosperous areas of southern Nigeria to over 50% in parts of the north.
The Uganda oil pipeline through Tanzania should be made into a bigger prosperity corridor, with fibre optics, roads, railways and food silos.
More than 4 million people, one third of the population, have fled their homes since South Sudans brutal war began in December 2013
In East Africa Ethiopia is likely to remain the fastest growing economy, but growth is projected to slow in Tanzania with moderation in investment growth.
As a moth, they are good flyers averaging about 100 kilometres a night. If left untreated, the armyworm can cause crop losses of up to 50%, munching its way through a hectare within 72 hours.
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