Mr Abubakar vowed to revive the Economic Community of West African States Monitoring Group (ECOMOG), and return Mali, Burkina Faso and Niger to ECOWAS.
African ministers of health adopted a 10-year plan to sustain polio eradication efforts.
Schools are scheduled to reopen nationwide on September 1, but reopening in Ebola-affected areas will depend on local transmission risks.
Mr Tshisekedi said the dialogue will begin with consultations across Congo’s 26 provinces, then culminate in national talks.
At least 2,700 people have died from Ebola in the Democratic Republic of the Congo, with about 500 new cases emerging weekly.
UN has backed former President Olusegun Obasanjo’s renewed peace initiative in Ethiopia amid rising security tensions in the country’s northern part.
AU called on parties involved to take all necessary measures to prevent the conflict from further escalation.
The summer school will bring together about 150 participants for an intensive programme of learning, dialogue, networking and international exchange.
The Nigerian Navy has called on Nigerians to join the government and other related institutions in efforts to preserve the nation’s lakes.
Uganda has officially declared its Ebola outbreak over after completing 42 consecutive days without recording a new confirmed case, Africa CDC and WHO said.
