Demonstrations over rising prices turned violent
Ongoing drought has destroyed crops, livestock
Officials, experts, activists meet in Washington
GAVI Alliance says millions of lives will be saved by 2015
Studies promote vaccine benefits, but say greater investment needed
Global Economic Prospects report details regional growth
UN says most need food and shelter
Many of the migrants are undocumented workers
So-called mega-disasters include floods and earthquakes
Doctors Without Borders says action needed now to reduce projected number of deaths
Top US AIDS official Eric Goosby talks of struggles and advances
Former prosecutors, State Department officials view photos of northern occupation of town
Aid agencies rush to help those fleeing Abyei region
World Health Organization reports burns, internal bleeding, blast injuries
Humanitarian agency says greater spending needed on development, health, hunger
Images show more troops, heavy weapons 435 kilometers from Abyei
Policy group says Africa’s agricultural sector vital to food security
Mountain town in Chad to become way station
Doctors Without Borders treating sick and wounded
Coalition wants special envoy, better trained peacekeeping troops
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