NEW YORK (AP) — U.S. health officials are telling Americans to put off non-essential travel to Guinea, Liberia and Sierra Leone because of an Ebola outbreak.

A total of more than 700 people have died in all three countries.

Meanwhile, a military spokesman for the African Union mission in Somalia says the AU has canceled a planned troop rotation by Sierra Leonean forces because of the outbreak.

Leone is one of five nations that send large numbers of troops to Somalia to protect the government and fight al-Shabab militants.

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