JOHANNESBURG (AP) — In the United States, some parents fearful of deadly Ebola pulled children out of a school after the principal returned from Zambia, an African nation far from the area hit by the disease. In Geneva, a top U.N. official warned against anti-African discrimination fueled by fears of Ebola. The disease has ravaged a small part of Africa, but the international image of the whole continent is increasingly under siege, reinforcing some old stereotypes.

Guinea, Liberia and Sierra Leone — the African countries afflicted by the Ebola outbreak — have a combined population of about 22 million on a continent with more than 1 billion people. Their corner of West Africa encompasses an area the size of California, or almost as big as Morocco. Yet the epidemic feeds into a narrative of disaster on a continent of 54 countries that has seen some progress in past years, and false perceptions of Ebola’s reach are hurting African business distant from the affected areas.